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how to read json file from assets folder in android

2017-05-15T21:38:00.003-07:00

if the question as json array like follwing

[{"questionId":"Q18868","questionValue":"What is the minimum age for obtaining an Alabama driver license?","choice1":"At least 16 years.","choice2":"At least 17 years.","choice3":"At least 18 years.","choice4":"At least 19 years.","answer":"1","imageName":"NA"},{"questionId":"Q18873","questionValue":"Whether Alabama license may be issued to persons under age 19 years, without secondary school graduation or current attendance?","choice1":"No.","choice2":"Yes.","choice3":"Yes, on special permission.","choice4":"Any thing else.","answer":"1","imageName":"NA"},{"questionId":"Q19001","questionValue":"For how many moving traffic violations on a GDL (graduated driver license), you license will be suspended?","choice1":"1 or more.","choice2":"2 or more.","choice3":"3 or more.","choice4":"4 or more.","answer":"2","imageName":"NA"},{"questionId":"Q19323","questionValue":"For which persons Graduated Driver License (GDL) system is not applicable?","choice1":"Persons aged 18 years or older.","choice2":"Persons aged 17 or older with valid driver license for 6 months.","choice3":"Persons aged 16 or older, who are married or head of a household.","choice4":"All the above persons.","answer":"4","imageName":"NA"},{"questionId":"Q19324","questionValue":"Whether persons who have been legally relieved of minority status, is eligible for GDL system?","choice1":"NO.","choice2":"Yes.","choice3":"Yes, if under 16 years.","choice4":"Any thing else.","answer":"1","imageName":"NA"},{"questionId":"Q19325","questionValue":"Who should accompany a person aged 15 years with learner\u0027s license in the vehicle, while driving?","choice1":"A parent or legal guardian.","choice2":"A licensed driver aged 21 years or older.","choice3":"A licensed or certified driving instructor.","choice4":"Any one of the above persons.","answer":"4","imageName":"NA"},{"questionId":"Q19326","questionValue":"In which seat of the vehicle, the person accompanying the driver aged 15 years with learner\u0027s license should sit?","choice1":"Seat next to the driver.","choice2":"Any front seat.","choice3":"Seat behind the driver.","choice4":"Any where else.","answer":"1","imageName":"NA"}]

JsonParser .java

package com.alabama;

import java.io.IOException;

import java.io.InputStream;

import java.util.ArrayList;

import org.json.JSONArray;

import org.json.JSONException;

import org.json.JSONObject;

import android.app.Activity;

public class JsonParser {

String fileName;

Activity activity;

public JsonParser(Activity activity,String fileName) {

this.activity=activity;

this.fileName=fileName;

}

public ArrayList<QuestBeen> getQuestion() {

ArrayList<QuestBeen> list=new ArrayList<QuestBeen>();

JSONArray array;

try {

array = new JSONArray(loadJSONFromAsset());

for(int i=0;i<array.length();i++){

JSONObject json_data = array.getJSONObject(i);

QuestBeen been=new QuestBeen();

been.setQuestionId(json_data.getString("questionId"));

been.setQuestionValue(json_data.getString("questionValue"));

been.setChoice1(json_data.getString("choice1"));

been.setChoice2(json_data.getString("choice2"));

been.setChoice3(json_data.getString("choice3"));

been.setChoice4(json_data.getString("choice4"));

been.setAnswer(json_data.getString("answer"));

list.add(been);

}

} catch (JSONException e) {

e.printStackTrace();

}

return list;

}

public String loadJSONFromAsset() {

String json = null;

try {

InputStream is = activity.getAssets().open(fileName);

int size = is.available();

byte[] buffer = new byte[size];

is.read(buffer);

is.close();

json = new String(buffer, "UTF-8");

} catch (IOException ex) {

ex.printStackTrace();

return null;

}

return json;

}

reading files in the activity

package com.alabama;

import java.util.ArrayList;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.RadioButton;

import android.widget.RadioGroup;

import android.widget.RadioGroup.OnCheckedChangeListener;

import android.widget.TextView;

import android.widget.Toast;

public class TestActivity extends Activity{

int ans=0;

int id=0;

int rightValue=0;

ArrayList<QuestBeen> question;

JsonParser parser;

TextView textViewQuestion,textViewHead;

RadioGroup group;

RadioButton choice1,choice2,choice3,choice4;

Button buttonPrev,buttonNext;

int pos;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_test);

pos=getIntent().getExtras().getInt("position");

pos=10+pos;

parser=new JsonParser(TestActivity.this,"QC"+pos+".json");

System.out.println("--------------------------");

Log.d("json ", parser.loadJSONFromAsset().toString());

question=parser.getQuestion();

GUI();

}

private void GUI() {

textViewQuestion=(TextView)findViewById(R.id.textViewQuestion);

textViewHead=(TextView)findViewById(R.id.textViewHead);

group=(RadioGroup)findViewById(R.id.radioGroup1);

choice1=(RadioButton)findViewById(R.id.radio0);

choice2=(RadioButton)findViewById(R.id.radio1);

choice3=(RadioButton)findViewById(R.id.radio2);

choice4=(RadioButton)findViewById(R.id.radio3);

textViewHead.setText("1/"+question.size());

ConstantValues.totaQuestin=question.size();

buttonPrev=(Button)findViewById(R.id.button1);

buttonNext=(Button)findViewById(R.id.button2);

setVal();

group.setOnCheckedChangeListener(new OnCheckedChangeListener() {

@Override

public void onCheckedChanged(RadioGroup group, int checkedId) {

RadioButton rb = (RadioButton) group.findViewById(checkedId);

int radioButtonID = group.getCheckedRadioButtonId();

View radioButton = group.findViewById(radioButtonID);

int idx = group.indexOfChild(radioButton);

if(idx==ans){

rightValue=1;

}

else

rightValue=0;

//Toast.makeText(getApplicationContext(), idx+"---", Toast.LENGTH_SHORT).show();

}

});

buttonNext.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

ConstantValues.answers.add(id,rightValue);

id++;

Log.d("question", id+"--");

if(id<=question.size()-1)

setVal();

else{

Toast.makeText(getApplicationContext(), "Result", Toast.LENGTH_SHORT).show();

Intent intent=new Intent(TestActivity.this,ResultActivity.class);

startActivity(intent);

}

Log.d("-----------", ConstantValues.answers.toString());

}

});

buttonPrev.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

id--;

Log.d("question", id+"--");

if(id<=0){

id=0;

Toast.makeText(getApplicationContext(), "No Questions", Toast.LENGTH_SHORT).show();

}

else

setVal();

}

});

}

private void setVal() {

ans=Integer.parseInt(question.get(id).getAnswer());

group.clearCheck();

textViewHead.setText(id+"/"+question.size());

textViewQuestion.setText(question.get(id).getQuestionValue());

choice1.setText(question.get(id).getChoice1());

choice2.setText(question.get(id).getChoice2());

choice3.setText(question.get(id).getChoice3());

choice4.setText(question.get(id).getChoice4());

}

Android Custom Calendar

2017-04-18T01:45:00.002-07:00

CalendarAdapter.java


import android.content.Context;
import android.graphics.Color;

import java.text.SimpleDateFormat;
import java.util.Collections;
import java.util.GregorianCalendar;

import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import java.text.DateFormat;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;




/** * Created by Mafiree on 11/7/2016. */
public class CalendarAdapter extends BaseAdapter {
    private Context mContext;

    private java.util.Calendar month;
    public GregorianCalendar pmonth; // calendar instance for previous month    /**     * calendar instance for previous month for getting complete view     */    public GregorianCalendar pmonthmaxset;
    private GregorianCalendar selectedDate;
    int firstDay;
    int maxWeeknumber;
    int maxP;
    int calMaxP;
    int lastWeekDay;
    int leftDays;
    int mnthlength;
    String itemvalue, curentDateString;
    DateFormat df;

    private ArrayList<String> items;
    public static List<String> dayString;
    private View previousView;

    public CalendarAdapter(Context c, GregorianCalendar monthCalendar) {

        CalendarAdapter.dayString = new ArrayList<String>();
        month = monthCalendar;
        selectedDate = (GregorianCalendar) monthCalendar.clone();
        mContext = c;
        month.set(GregorianCalendar.DAY_OF_MONTH, 1);
        this.items = new ArrayList<String>();
        df = new SimpleDateFormat("yyyy-MM-dd", Locale.US);
        curentDateString = df.format(selectedDate.getTime());
        refreshDays();
    }

    public void setItems(ArrayList<String> items) {
        for (int i = 0; i != items.size(); i++) {
            if (items.get(i).length() == 1) {
                items.set(i, "0" + items.get(i));
            }
        }
        this.items = items;
    }

    public int getCount() {
        return dayString.size();
    }

    public Object getItem(int position) {
        return dayString.get(position);
    }

    public long getItemId(int position) {
        return 0;
    }

    // create a new view for each item referenced by the Adapter    public View getView(int position, View convertView, ViewGroup parent) {
        View v = convertView;
        TextView dayView;
        if (convertView == null) { // if it's not recycled, initialize some            // attributes            LayoutInflater vi = (LayoutInflater) mContext
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            v = vi.inflate(R.layout.calendar_item, null);

        }
        dayView = (TextView) v.findViewById(R.id.date);
        // separates daystring into parts.        String[] separatedTime = dayString.get(position).split("-");
        // taking last part of date. ie; 2 from 2012-12-02        String gridvalue = separatedTime[2].replaceFirst("^0*", "");
        // checking whether the day is in current month or not.        if ((Integer.parseInt(gridvalue) > 1) && (position < firstDay)) {
            // setting offdays to white color.            dayView.setTextColor(Color.WHITE);
            dayView.setClickable(false);
            dayView.setFocusable(false);
        } else if ((Integer.parseInt(gridvalue) < 7) && (position > 28)) {
            dayView.setTextColor(Color.WHITE);
            dayView.setClickable(false);
            dayView.setFocusable(false);
        } else {
            // setting curent month's days in blue color.            dayView.setTextColor(Color.BLUE);
        }

        if (dayString.get(position).equals(curentDateString)) {
            setSelected(v);
            previousView = v;
        } else {
           // v.setBackgroundResource(R.drawable.list_item_background);        }
        dayView.setText(gridvalue);

        // create date string for comparison        String date = dayString.get(position);

        if (date.length() == 1) {
            date = "0" + date;
        }
        String monthStr = "" + (month.get(GregorianCalendar.MONTH) + 1);
        if (monthStr.length() == 1) {
            monthStr = "0" + monthStr;
        }

        // show icon if date is not empty and it exists in the items array        ImageView iw = (ImageView) v.findViewById(R.id.date_icon);
        if (date.length() > 0 && items != null && items.contains(date)) {
            iw.setVisibility(View.VISIBLE);
        } else {
            iw.setVisibility(View.INVISIBLE);
        }
        return v;
    }

    public View setSelected(View view) {
        if (previousView != null) {
            //previousView.setBackgroundResource(R.drawable.list_item_background);        }
        previousView = view;
      //  view.setBackgroundResource(R.drawable.calendar_cel_selectl);        return view;
    }

    public void refreshDays() {
        // clear items        items.clear();
        dayString.clear();
        pmonth = (GregorianCalendar) month.clone();
        // month start day. ie; sun, mon, etc        firstDay = month.get(GregorianCalendar.DAY_OF_WEEK);
        // finding number of weeks in current month.        maxWeeknumber = month.getActualMaximum(GregorianCalendar.WEEK_OF_MONTH);
        // allocating maximum row number for the gridview.        mnthlength = maxWeeknumber * 7;
        maxP = getMaxP(); // previous month maximum day 31,30....        calMaxP = maxP - (firstDay - 1);// calendar offday starting 24,25 ...        /**         * Calendar instance for getting a complete gridview including the three         * month's (previous,current,next) dates.         */        pmonthmaxset = (GregorianCalendar) pmonth.clone();
        /**         * setting the start date as previous month's required date.         */        pmonthmaxset.set(GregorianCalendar.DAY_OF_MONTH, calMaxP + 1);

        /**         * filling calendar gridview.         */        for (int n = 0; n < mnthlength; n++) {

            itemvalue = df.format(pmonthmaxset.getTime());
            pmonthmaxset.add(GregorianCalendar.DATE, 1);
            dayString.add(itemvalue);

        }
    }

    private int getMaxP() {
        int maxP;
        if (month.get(GregorianCalendar.MONTH) == month
                .getActualMinimum(GregorianCalendar.MONTH)) {
            pmonth.set((month.get(GregorianCalendar.YEAR) - 1),
                    month.getActualMaximum(GregorianCalendar.MONTH), 1);
        } else {
            pmonth.set(GregorianCalendar.MONTH,
                    month.get(GregorianCalendar.MONTH) - 1);
        }
        maxP = pmonth.getActualMaximum(GregorianCalendar.DAY_OF_MONTH);

        return maxP;
    }

}





public class CalendarView extends Activity {

public GregorianCalendar month, itemmonth;


 public CalendarAdapter adapter;// adapter instance
 public Handler handler;// for grabbing some event values for showing the dot
       // marker.
 public ArrayList<String> items; // container to store calendar items which
         // needs showing the event marker

 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.calendar);

 month = (GregorianCalendar) GregorianCalendar.getInstance();itemmonth = (GregorianCalendar) month.clone();

  items = new ArrayList<String>();
  adapter = new CalendarAdapter(this, month);

  GridView gridview = (GridView) findViewById(R.id.gridview);
  gridview.setAdapter(adapter);

  handler = new Handler();
  handler.post(calendarUpdater);

  TextView title = (TextView) findViewById(R.id.title);
  title.setText(android.text.format.DateFormat.format("MMMM yyyy", month));

  RelativeLayout previous = (RelativeLayout) findViewById(R.id.previous);

  previous.setOnClickListener(new OnClickListener() {

   @Override
   public void onClick(View v) {
    setPreviousMonth();
    refreshCalendar();
   }
  });

  RelativeLayout next = (RelativeLayout) findViewById(R.id.next);
  next.setOnClickListener(new OnClickListener() {

   @Override
   public void onClick(View v) {
    setNextMonth();
    refreshCalendar();

   }
  });

  gridview.setOnItemClickListener(new OnItemClickListener() {
   public void onItemClick(AdapterView<?> parent, View v,
     int position, long id) {

    ((CalendarAdapter) parent.getAdapter()).setSelected(v);
    String selectedGridDate = CalendarAdapter.dayString
      .get(position);
    String[] separatedTime = selectedGridDate.split("-");
    String gridvalueString = separatedTime[2].replaceFirst("^0*",
      "");// taking last part of date. ie; 2 from 2012-12-02.
    int gridvalue = Integer.parseInt(gridvalueString);
    // navigate to next or previous month on clicking offdays.
    if ((gridvalue > 10) && (position < 8)) {
     setPreviousMonth();
     refreshCalendar();
    } else if ((gridvalue < 7) && (position > 28)) {
     setNextMonth();
     refreshCalendar();
    }
    ((CalendarAdapter) parent.getAdapter()).setSelected(v);

    showToast(selectedGridDate);

   }
  });
 }

 protected void setNextMonth() {
  if (month.get(Calendar.MONTH) == month.getActualMaximum(Calendar.MONTH)) {
   month.set((month.get(Calendar.YEAR) + 1),
     month.getActualMinimum(Calendar.MONTH), 1);
  } else {
   month.set(Calendar.MONTH, month.get(Calendar.MONTH) + 1);
  }

 }

 protected void setPreviousMonth() {
  if (month.get(Calendar.MONTH) == month.getActualMinimum(Calendar.MONTH)) {
   month.set((month.get(Calendar.YEAR) - 1),
     month.getActualMaximum(Calendar.MONTH), 1);
  } else {
   month.set(Calendar.MONTH, month.get(Calendar.MONTH) - 1);
  }

 }

 protected void showToast(String string) {
  Toast.makeText(this, string, Toast.LENGTH_SHORT).show();

 }

 public void refreshCalendar() {
  TextView title = (TextView) findViewById(R.id.title);

  adapter.refreshDays();
  adapter.notifyDataSetChanged();
  handler.post(calendarUpdater); // generate some calendar items

  title.setText(android.text.format.DateFormat.format("MMMM yyyy", month));
 }

 public Runnable calendarUpdater = new Runnable() {

  @Override
  public void run() {
   items.clear();

   // Print dates of the current week
   DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
   String itemvalue;
   for (int i = 0; i < 7; i++) {
    itemvalue = df.format(itemmonth.getTime());
    itemmonth.add(Calendar.DATE, 1);
    items.add("2012-09-12");
    items.add("2012-10-07");
    items.add("2012-10-15");
    items.add("2012-10-20");
    items.add("2012-11-30");
    items.add("2012-11-28");
   }

   adapter.setItems(items);
   adapter.notifyDataSetChanged();
  }
 };
}

Making TextView scrollable in Android

2017-02-10T05:17:00.000-08:00

final TextView tv = new TextView(this);
tv.setBackgroundResource(R.drawable.splash);
tv.setTypeface(face);
tv.setTextSize(18);
tv.setTextColor(R.color.BROWN);
tv.setGravity(Gravity.CENTER_VERTICAL| Gravity.CENTER_HORIZONTAL);
tv.setOnTouchListener(new OnTouchListener() {
    public boolean onTouch(View v, MotionEvent e) {
        Random r = new Random();
        int i = r.nextInt(101);
        if (e.getAction() == e.ACTION_DOWN) {
            tv.setText(tips[i]);
            tv.setBackgroundResource(R.drawable.inner);
        }
        return true;
    }
});
setContentView(tv);

PagerAdapter Class

2017-02-10T03:05:00.002-08:00

This is the main activity

myPagerAdapter=new MyPagerAdapter(TopNewsAcivity.this,arrayList);
verticalViewPager=(VerticalViewPager)findViewById(R.id.view_pager);
verticalViewPager.setAdapter(myPagerAdapter);

For dynamic PagerAdapter

MyPagerAdapter .class

package news.com.mynews.adapter;

import android.app.Activity;
import android.graphics.Color;
import android.graphics.Typeface;
import android.support.v4.view.PagerAdapter;
import android.support.v7.widget.ActionBarOverlayLayout.LayoutParams;
import android.text.Html;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.ImageView.ScaleType;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.squareup.picasso.Picasso;

import java.util.ArrayList;

import news.com.mynews.R;
import news.com.mynews.bean.NewsBean;

/** * Created by Mafiree on 12/19/2016. *///http://android-er.blogspot.in/2014/04/example-of-viewpager-with-custom.htmlpublic class MyPagerAdapter extends PagerAdapter {


    int NumberOfPages = 5;

    int[] res = {
            android.R.drawable.ic_dialog_alert,
            android.R.drawable.ic_menu_camera,
            android.R.drawable.ic_menu_compass,
            android.R.drawable.ic_menu_directions,
            android.R.drawable.ic_menu_gallery};
    int[] backgroundcolor = {
            0xFF101010,
            0xFF202020,
            0xFF303030,
            0xFF404040,
            0xFF505050};

    Activity activity;
    ArrayList<NewsBean> list;

    public MyPagerAdapter(Activity activity,ArrayList<NewsBean> list) {
        this.activity=activity;
        this.list=list;
    }

    @Override
    public int getCount() {
        //return NumberOfPages;        return list.size();
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return view == object;
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {

        ImageView imageView=new ImageView(activity);
        imageView.setScaleType(ScaleType.FIT_XY);

        TextView textView = new TextView(activity);
        textView.setTextColor(Color.BLACK);
       // textView.setTextSize(18);        textView.setTypeface(Typeface.DEFAULT_BOLD);
        //textView.setText(String.valueOf(position));      //  textView.setText(list.get(position).getTitle());        int n=200;
        String upToNCharacters = list.get(position).getDescription().substring(0, Math.min(list.get(position).getDescription().length(), n));

        textView.setText(Html.fromHtml("<h2>"+list.get(position).getTitle()+"</h2><br><p>"+upToNCharacters+" here</p>"));

        TextView textContent=new TextView(activity);
//        textContent.setText(Color.WHITE);        textContent.setTextColor(Color.GRAY);
       // textContent.setTextSize(16);       // textContent.setText(Html.fromHtml("<h2>Title</h2><br><p>Description here</p>"));        System.out.println("*******************************************");
        String imageUrl=null;
        imageUrl="http://bestcinema.in/wp-content/uploads/"+list.get(position).getImageURL();
       
        try {
            Picasso.with(activity).load(imageUrl).resize(250,350).into(imageView);
        }catch (Exception e){
            e.printStackTrace();
        }

        LayoutParams imageParams = new LayoutParams(
                LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT);
        imageView.setLayoutParams(imageParams);

        LinearLayout layout = new LinearLayout(activity);
        layout.setOrientation(LinearLayout.VERTICAL);
        LayoutParams layoutParams = new LayoutParams(
                LayoutParams.MATCH_PARENT,LayoutParams.MATCH_PARENT);
        //layout.setBackgroundColor(Color.BLUE);        layout.setLayoutParams(layoutParams);

        layout.addView(imageView);
        layout.addView(textView);
        layout.addView(textContent);

        final int page = position;
        layout.setPadding(7,7,7,7);


        LinearLayout layoutBotom = new LinearLayout(activity);
        layoutBotom.setOrientation(LinearLayout.HORIZONTAL);
        LayoutParams layoutParamsBottom = new LayoutParams(
                LayoutParams.MATCH_PARENT,LayoutParams.MATCH_PARENT);
        //layout.setBackgroundColor(Color.BLUE);        layoutBotom.setLayoutParams(layoutParamsBottom);


        ImageView imageViewShare=new ImageView(activity);
        imageViewShare.setBackgroundResource(R.drawable.ic_menu_share);

        ImageView imageViewSend=new ImageView(activity);
        imageViewSend.setBackgroundResource(R.drawable.ic_menu_send);

        layoutBotom.addView(imageViewShare);
        layoutBotom.addView(imageViewSend);

        layout.addView(layoutBotom);

        container.addView(layout);
        return layout;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        container.removeView((LinearLayout)object);
    }


}


For Static PagerAdapter





class CustomPagerAdapter extends PagerAdapter {



    Context mContext;

    LayoutInflater mLayoutInflater;



    public CustomPagerAdapter(Context context) {

        mContext = context;

        mLayoutInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

    }



    @Override

    public int getCount() {

        return mResources.length;

    }



    @Override

    public boolean isViewFromObject(View view, Object object) {

        return view == ((LinearLayout) object);

    }



    @Override

    public Object instantiateItem(ViewGroup container, int position) {

        View itemView = mLayoutInflater.inflate(R.layout.pager_item, container, false);



        ImageView imageView = (ImageView) itemView.findViewById(R.id.imageView);

        imageView.setImageResource(mResources[position]);



        container.addView(itemView);



        return itemView;

    }



    @Override

    public void destroyItem(ViewGroup container, int position, Object object) {

        container.removeView((LinearLayout) object);

    }

}

Android searchview expand hide Toolbar title

2016-11-03T22:21:00.003-07:00

@Override
public boolean onCreateOptionsMenu(final Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);

final MenuItem searchItem = menu.findItem(R.id.search);
SearchView searchView = (android.widget.SearchView) searchItem.getActionView();

// Detect SearchView icon clicks
searchView.setOnSearchClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
setItemsVisibility(menu, searchItem, false);
}
});
// Detect SearchView close
searchView.setOnCloseListener(new SearchView.OnCloseListener() {
@Override
public boolean onClose() {
setItemsVisibility(menu, searchItem, true);
return false;
}
});

return super.onCreateOptionsMenu(menu);
}

******************************************************************************

for my case

my Toolbar is

 private void actionBarView(){


        toolbar = (Toolbar) findViewById(com.mafiree.salezstorm.R.id.toolbar);

        setSupportActionBar(toolbar);
        getSupportActionBar().setTitle("Tittle");

 /*       if(toolbar != null) {            setSupportActionBar(toolbar);            getSupportActionBar().setTitle("My custom toolbar!");            getSupportActionBar().setHomeButtonEnabled(true);            getSupportActionBar().setDisplayHomeAsUpEnabled(true);        }*/
        //back button action        ImageView imageview_back=(ImageView)toolbar.findViewById(com.mafiree.salezstorm.R.id.imageview_back);

        imageview_back.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                // Toast.makeText(getApplicationContext(),"back clicked",Toast.LENGTH_LONG).show();                finish();
            }
        });



        textview_property=(TextView)findViewById(R.id.textview_property_list);
      //  textview_property.setVisibility(View.GONE);
        textview_property.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });


    }

my Option menu

   MenuInflater inflater=getMenuInflater();
        inflater.inflate(R.menu.property_menu,menu);
//http://www.mysamplecode.com/2012/11/android-expandablelistview-search.html
      MenuItem searchItem = menu.findItem(R.id.menu_search);
        searchView = (SearchView) searchItem.getActionView();



        SearchManager searchManager =
                (SearchManager) getSystemService(Context.SEARCH_SERVICE);
        SearchView searchView =
                (SearchView) menu.findItem(R.id.menu_search).getActionView();
        searchView.setSearchableInfo(
                searchManager.getSearchableInfo(getComponentName()));

        searchView.setOnFocusChangeListener(new OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {


                Toast.makeText(getApplicationContext(),"back clicked",Toast.LENGTH_LONG).show();
            }
        });

        searchView.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(getApplicationContext(),"back clicked",Toast.LENGTH_LONG).show();
                Log.d("************************************searchView**","-----");

            }
        });



        searchView.setOnSearchClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(getApplicationContext(),"back search",Toast.LENGTH_LONG).show();
                //setItemsVisibility(menu, searchItem, false);                textview_property.setVisibility(View.GONE);
            }
        });


        searchView.setOnCloseListener(new OnCloseListener() {
            @Override
            public boolean onClose() {
                textview_property.setVisibility(View.VISIBLE);
                Toast.makeText(getApplicationContext(),"back close",Toast.LENGTH_LONG).show();
                return false;
            }
        });


        searchView.setOnQueryTextListener(new OnQueryTextListener() {
            @Override
            public boolean onQueryTextSubmit(String query) {
                Log.d("*********************************","------"+query);

                if(null != arrayList || arrayList.size() > 0){
                    adapter=new PropertyAdapter(getApplicationContext());
                    listView.setAdapter(adapter);
                    adapter.getFilter().filter(query);
                }

                return false;
            }

            @Override
            public boolean onQueryTextChange(String newText) {
                Log.d("*********************************","------"+newText);
                return false;
            }
        });

HttpUrlconnection in different method

2016-10-22T01:00:00.000-07:00

To perform an HTTP PUT:

URL url = new URL("http://www.example.com/resource");
HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();
httpCon.setDoOutput(true);
httpCon.setRequestMethod("PUT");
OutputStreamWriter out = new OutputStreamWriter(
    httpCon.getOutputStream());
out.write("Resource content");
out.close();
httpCon.getInputStream();

To perform an HTTP DELETE:

URL url = new URL("http://www.example.com/resource");
HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();
httpCon.setDoOutput(true);
httpCon.setRequestProperty(
    "Content-Type", "application/x-www-form-urlencoded" );
httpCon.setRequestMethod("DELETE");
httpCon.connect();


public  HttpURLConnection getHttpConnection(String url, String type){
        URL uri = null;
        HttpURLConnection con = null;
        try{
            uri = new URL(url);
            con = (HttpURLConnection) uri.openConnection();
            con.setRequestMethod(type); //type: POST, PUT, DELETE, GET
            con.setDoOutput(true);
            con.setDoInput(true);
            con.setConnectTimeout(60000); //60 secs
            con.setReadTimeout(60000); //60 secs
            con.setRequestProperty("Accept-Encoding", "Your Encoding");
            con.setRequestProperty("Content-Type", "Your Encoding");
        }catch(Exception e){
            logger.info( "connection i/o failed" );
        }


        return con;
}

Then in your code :
public void yourmethod(String url, String type, String reqbody){
    HttpURLConnection con = null;
    String result = null;
    try {
        con = conUtil.getHttpConnection( url , type);
    //you can add any request body here if you want to post
         if( reqbody != null){  
                con.setDoInput(true);
                con.setDoOutput(true);
                DataOutputStream out = new  DataOutputStream(con.getOutputStream());
                out.writeBytes(reqbody);
                out.flush();
                out.close();

            }
        con.connect();
        BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        String temp = null;
        StringBuilder sb = new StringBuilder();
        while((temp = in.readLine()) != null){
            sb.append(temp).append(" ");
        }
        result = sb.toString();
        in.close();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        logger.error(e.getMessage());
    }
//result is the response you get from the remote side
}


PUT
URL url = null;
try {
   url = new URL("http://localhost:8080/putservice");
} catch (MalformedURLException exception) {
    exception.printStackTrace();
}
HttpURLConnection httpURLConnection = null;
DataOutputStream dataOutputStream = null;
try {
    httpURLConnection = (HttpURLConnection) url.openConnection();
    httpURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    httpURLConnection.setRequestMethod("PUT");
    httpURLConnection.setDoInput(true);
    httpURLConnection.setDoOutput(true);
    dataOutputStream = new DataOutputStream(httpURLConnection.getOutputStream());
    dataOutputStream.write("hello");
} catch (IOException exception) {
    exception.printStackTrace();
}  finally {
    if (dataOutputStream != null) {
        try {
            dataOutputStream.flush();
            dataOutputStream.close();
        } catch (IOException exception) {
            exception.printStackTrace();
        }
    }
    if (httpsURLConnection != null) {
        httpsURLConnection.disconnect();
    }
}

DELETE
URL url = null;
try {
    url = new URL("http://localhost:8080/deleteservice");
} catch (MalformedURLException exception) {
    exception.printStackTrace();
}
HttpURLConnection httpURLConnection = null;
try {
    httpURLConnection = (HttpURLConnection) url.openConnection();
    httpURLConnection.setRequestProperty("Content-Type",
                "application/x-www-form-urlencoded");
    httpURLConnection.setRequestMethod("DELETE");
    System.out.println(httpURLConnection.getResponseCode());
} catch (IOException exception) {
    exception.printStackTrace();
} finally {         
    if (httpURLConnection != null) {
        httpURLConnection.disconnect();
    }
} 



PUT example using HttpURLConnection:
URL url = null;
try {
   url = new URL("http://localhost:8080/putservice");
} catch (MalformedURLException exception) {
    exception.printStackTrace();
}
HttpURLConnection httpURLConnection = null;
DataOutputStream dataOutputStream = null;
try {
    httpURLConnection = (HttpURLConnection) url.openConnection();
    httpURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    httpURLConnection.setRequestMethod("PUT");
    httpURLConnection.setDoInput(true);
    httpURLConnection.setDoOutput(true);
    dataOutputStream = new DataOutputStream(httpURLConnection.getOutputStream());
    dataOutputStream.write("hello");
} catch (IOException exception) {
    exception.printStackTrace();
}  finally {
    if (dataOutputStream != null) {
        try {
            dataOutputStream.flush();
            dataOutputStream.close();
        } catch (IOException exception) {
            exception.printStackTrace();
        }
    }
    if (httpsURLConnection != null) {
        httpsURLConnection.disconnect();
    }
}

DELETE example using HttpURLConnection:
URL url = null;
try {
    url = new URL("http://localhost:8080/deleteservice");
} catch (MalformedURLException exception) {
    exception.printStackTrace();
}
HttpURLConnection httpURLConnection = null;
try {
    httpURLConnection = (HttpURLConnection) url.openConnection();
    httpURLConnection.setRequestProperty("Content-Type",
                "application/x-www-form-urlencoded");
    httpURLConnection.setRequestMethod("DELETE");
    System.out.println(httpURLConnection.getResponseCode());
} catch (IOException exception) {
    exception.printStackTrace();
} finally {         
    if (httpURLConnection != null) {
        httpURLConnection.disconnect();
    }
}

How to import a library project in Android Studio?

2016-10-10T01:47:00.004-07:00

In this short tutorial I would show you how to import a library project in Android Studio v1.2.1.1. The steps to do so are:

Goto File -> New -> Import Module.
Source Directory -> Browse the project path.
Specify the Module Name – it is used for internal project reference.
Let Android Studio build the project.
Open build.gradle (Module:app) file.
Add the following line with your module name in place of “Volley” in the dependencies block:

1

compile project(':Volley')
It should look something like this:
After this Android Studio would start saying “gradle files have changed since last project sync”, press the “sync now” link to start a sync.
That’s all you need to do.

reference of

http://www.truiton.com/2015/02/android-studio-add-library-project/

TabLayout (Android Design Library) Text Color

2016-09-27T03:34:00.001-07:00

<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- Below will reference with our custom style -->
    <item name="android:textAppearance">@style/my_tab_text</item>
</style>

<style name="my_tab_text" parent="Base.TextAppearance.AppCompat">
    <item name="android:textColor">@android:color/holo_blue_dark</item>
</style>

And if you dont want to reference from your Apptheme you can directly specify to TabLayout using Below snippet.

 <android.support.design.widget.TabLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:tabTextAppearance="@style/my_tab_text"
            app:tabIndicatorHeight="48dp"/>

Android google map zooming and running the current location

2016-09-23T03:42:00.000-07:00

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>

package com.example.location;

import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.view.View;
import com.actionbarsherlock.app.SherlockFragmentActivity;
import com.google.android.gms.maps.CameraUpdate;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;

public class LocationActivity extends SherlockFragmentActivity implements LocationListener     {
private GoogleMap map;
private LocationManager locationManager;
private static final long MIN_TIME = 400;
private static final float MIN_DISTANCE = 1000;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.map);
    map = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();

    locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
    locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, MIN_TIME, MIN_DISTANCE, this); //You can also use LocationManager.GPS_PROVIDER and LocationManager.PASSIVE_PROVIDER        
}

@Override
public void onLocationChanged(Location location) {
    LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
    CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(latLng, 10);
    map.animateCamera(cameraUpdate);
    locationManager.removeUpdates(this);
}

@Override
public void onStatusChanged(String provider, int status, Bundle extras) { }

@Override
public void onProviderEnabled(String provider) { }

@Override
public void onProviderDisabled(String provider) { }
}



map.xml
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
class="com.google.android.gms.maps.SupportMapFragment"/>
if you need zooming effect very close 
LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
  
/*   CameraPosition cameraPosition = new CameraPosition.Builder()
      .target(latLng).zoom(19f).tilt(70).build();
   googleMap.setMyLocationEnabled(true);
      googleMap.animateCamera(CameraUpdateFactory
              .newCameraPosition(cameraPosition));*/

Custom Kestore to upload signed APK for Playstore using SHA1

2016-07-19T02:57:00.001-07:00

Usually when create the google map it will run proper in locally after setting google key ,package name and SHA1 certificate fingerprint

when upload the APK to play store we have to create custom keystore, then only we will be able to upload playstore
here when change the keystore default into custom obviously SHA1 fingerprint also will get changed
so we have to try change in eclipse

here or we can try

C:\Users\**********>keytool -list -keystore D:\APK\Keystore\oneapp.keystore
Enter keystore password:

Keystore type: JKS
Keystore provider: SUN

Your keystore contains 1 entry

oneapp, Jul 19, 2016, PrivateKeyEntry,
Certificate fingerprint (SHA1): CF:64:96:E5:A9:F9:EF:70:6F:7D:18:2B:54:36:E5:7D:
A8:5F:7A:99

There is other way of doing as follow here

Steps (for ADT):

1.Export any project (It will show you an option to create custom keystore).

create your keystore with an extention ".keystore" and give password android and press next.

give alias name = androiddebugkey and password = android

now press finish and your keystore is ready.

1.Go to windows -> preference

and give the path of your custom keystore file

Android/SCREEN ON, SCREEN OFF BroadcastReceiver

2015-12-07T01:35:00.003-08:00

public class MyApplication extends Application {
    public static final String TAG = "SCREEN";
 
    private BroadcastReceiver scrOnReceiver;
    private BroadcastReceiver scrOffReceiver;
    private IntentFilter scrOnFilter;
    private IntentFilter scrOffFilter;
 
    @Override
    public void onCreate() {
        super.onCreate();
 
        scrOnReceiver = new BroadcastReceiver() { 
            @Override 
            public void onReceive(Context context, Intent intent) { 
                Log.d(TAG, "SCREEN ON");

  timer.cancel();
            } 
        };
 
        scrOnFilter = new IntentFilter(Intent.ACTION_SCREEN_ON); 
 
        scrOffReceiver = new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                Log.d(TAG, "SCREEN OFF");

  timer.start();
            }
        };
 
        scrOffFilter = new IntentFilter(Intent.ACTION_SCREEN_OFF);
 
        registerReceiver(scrOnReceiver, scrOnFilter);
        registerReceiver(scrOffReceiver, scrOffFilter);
    }

//time counting

 CountDownTimer timer = new CountDownTimer(1*60*1000, 1000) {

        public void onTick(long millisUntilFinished) {
           //Some code
         Log.d("timer", "--"+millisUntilFinished);
         
        }

        public void onFinish() {
           //Logout
         Intent intent=new Intent(AppController.this,LoginActivity.class);
         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

         Log.d("***********", "logout");
        }
     };
 
    @Override
    public void onTerminate() {
        super.onTerminate();
 
        unregisterReceiver(scrOnReceiver);
        unregisterReceiver(scrOffReceiver);
    }
 
}

<uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />
 
    <application
        android:name=".MyApplication"
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
   </application>

Android application logout after 15 min

2015-11-24T20:49:00.001-08:00

Here i just made the code the application should come out when it is not used till 15 minutes

for counting i have taken counter

CountDownTimer timer = new CountDownTimer(15 *60 * 1000, 1000) {

public void onTick(long millisUntilFinished) {
//Some code
Log.d("timer", "--"+millisUntilFinished);
}

public void onFinish() {
//Logout
finish();
Log.d("***********", "logout");
}
};

then i just calling the timer when it goes to sleep

@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
Log.d("***********", "onPause");
timer.start();
}

meanwhile if the application started again it means like resume, it should cancel

@Override protected void onResume()
{ Log.d("***********", "onresume");
super.onResume(); timer.cancel();
}

Android set image in imageview from mysql blob

2015-11-18T01:19:00.001-08:00

php code for getting blob type from databse

$product["description"] = $row["description"];

$product["before_tuning_graph"] = base64_encode($row['before_tuning_graph']);

$product["after_tuning_graph"] = base64_encode($row['after_tuning_graph']);

In java 

read the blob images as string 

    
//setting image for before tuning

 try {

byte[] res1 = Base64.decode(arrayList.get(position).getBefore_tuning_graph(), 0);

     InputStream ins =new ByteArrayInputStream(res1);

     Drawable dUser = Drawable.createFromStream(ins , "immagine");

     imageViewBefore.setImageDrawable(dUser);

 } catch (Exception e) {

     e.printStackTrace();

    }

Store ArrayList in android SharedPreference

2015-11-11T01:49:00.001-08:00

ArrayList<String> myArrayList=new ArrayList<String>();

myArrayList.add("value1");
myArrayList.add("value2");
myArrayList.add("value3");
myArrayList.add("value4");
myArrayList.add("value5");
myArrayList.add("value6");

Store arraylist in sharedpreference

SharedPreference sPrefs=PreferenceManager.getDefaultSharedPreferences(context);
SharedPreference.Editor sEdit=sPrefs.edit();

for(int i=0;i<myArrayList.size();i++)
{
sEdit.putString("val"+i,myArrayList.get(i);
}
sEdit.putInt("size",myArrayList.size());
sEdit.commit();

Retrive arraylist from sharedpreference

I am retriving values in another arraylist

ArrayList<String> myAList=new ArrayList<String>();
int size=sPrefs.getInt("size",0);

for(int j=0;j<size;j++)
{
myAList.add(sPrefs.getString("val"+j));
}

AdMob for Android

2015-11-09T03:22:00.001-08:00

Get Started in Eclipse

This guide will show you how to use Eclipse to integrate the Google Mobile Ads SDK into a brand new app and display a simple banner ad. It should take about thirty minutes to complete and will give you a good sense of how the SDK functions within an app.

The ad unit and samples that we provide return test ads. Test ads are always available, even if your account is suspended or disabled. For more information, review the AdMob policies and learn more about invalid activity.

Using live ads during development is against AdMob policy; if you test on live ads, your AdMob account may be suspended.

The guide is intended for developers who are familiar with Eclipse and have already used it to create Android apps. If you're new to Android coding, consider getting started with Android Studio. It's the official IDE for Android development.

No two developers have the same level of experience, so we've added occasional notes like this one for those who would like a little extra info. If you're an expert Android developer, feel free to skip them.

Prerequisites

Running Eclipse 3.7.2 (Indigo) or later
Eclipse JDT plugin (included in most Eclipse IDE packages)
The Android Plugin for Eclipse
The Android SDK Tools

Creating a new project

In this step, we'll create a brand new project in Eclipse to use for our example. Open eclipse with an empty workspace and choose File > New > Project... from the menu.

Select a Wizard

Select the Android folder, then choose Android Application Project and click Next.

Create your project

Enter "BannerExample" as the app and project names, and whatever package name you normally use. Next, give the project a minimum required SDK version of 9. That's the minimum version supported by the Google Mobile Ads SDK.

Configure your new project

We're keeping it simple here, so uncheck the Create custom launcher icon checkbox. Everything else can stay as it is.

Create an activity

The defaults for this screen are just fine. The Create Activity checkbox should be checked, and the Blank Activitychoice selected in the list.

Name your activity

Here again, the default options are what you need. Just click Finish and Eclipse will create your new project's source code.

Compile your new project

Once Eclipse is finished, try compiling and running your new app. You should see a "Hello world!" message on an otherwise empty gray screen. Don't worry, we'll add some more content in the next steps.

Download the Google Play services SDK

The Google Play services SDK contains classes and resources which your app can use to request and display ads. Make sure that you have the latest version by opening up your SDK Manager. You can do this by selectingWindow > Android SDK Manager.

The SDK Manager

In the Android SDK Manager window, select Google Play services under the Extras folder, then pressInstall Packages and accept the licenses to download. If the Install Packages button is disabled, don't worry. That just means you already have the latest version, so there's nothing else you need to do in the SDK Manager.

Include the Google Play services library

Now that the Google Play services SDK is downloaded, you can reference it in your project. Select File > New > Project... from the menu.

Create a project from existing code

Select the Android folder, then the Android Project from Existing Code choice within it.

Import project

Now you just need to tell Eclipse where it can find the library. Click the Browse button and navigate to<android-sdk>/extras/google/google_play_services/libproject/google-play-services_lib/, and click the OK button. When the browse dialog closes, you should see a single item in theProjects list. Make sure the checkbox next to it is checked, then click Finish to create a new project with the imported code.

Reference the imported project

With the new project created, you can reference it in your app's code. Right-click BannerExample in the Package Explorer and select Properties.

Properties for BannerExample

Select the Android choice in the list of property sections on the left, then click the Add... button.

Project selection

You'll see google-play-services_lib in the list view. Choose it, then click OK to close the selection dialog, and again to close the properties dialog. Your app now contains a reference to the Google Play services library project, which means it can use the classes and resources contained in the Google Play services SDK.

Try building and running your app again to make sure everything is correctly in place. You won't see any changes, but including Google Play Services is the first step toward getting ads into your app.

Modify the manifest file

Now that you have a working app that includes Google Play Services, it's time to modify the app manifest file to include the permissions, version number, and activity definition that the Mobile Ads SDK requires. Open the Android manifest for the BannerExample project, AndroidManifest.xml, for editing. It will be under theBannerExample/src/ folder, though the exact path depends on the package name you chose when setting up the project.

AndroidManifest.xml



<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.google.android.gms.example.bannerexample" >

    <uses-sdk
        android:minSdkVersion="9"
        android:targetSdkVersion="21" />

    <!-- Include required permissions for Google Mobile Ads to run-->
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <!--This meta-data tag is required to use Google Play Services.-->
        <meta-data android:name="com.google.android.gms.version"
        android:value="@integer/google_play_services_version" />
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <!--Include the AdActivity configChanges and theme. -->
        <activity android:name="com.google.android.gms.ads.AdActivity"
            android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
            android:theme="@android:style/Theme.Translucent" />
    </application>
</manifest>

There are three changes you need to make:

Add two <uses-permission> tags for INTERNET and ACCESS_NETWORK_STATE. The tag forINTERNET is required and used to access the Internet to make ad requests. ACCESS_NETWORK_STATE is optional, and used to check if an internet connection is available prior to making an ad request.
Add a <meta-data> tag that references the Google Play Services version. This lets Android know which version of the service your app expects to use.
Add an <activity> element with configChanges and theme attributes. This activity is used by the SDK when banners are clicked or interstitials are presented, and like any other activity must be declared in the manifest before being presented.

Go ahead and rebuild the project to make sure everything has been done correctly. You should still see the same "Hello world!" message for now. By configuring the App Manifest correctly, though, you've given your app the ability to use Mobile Ads.

Give your app an Ad Unit ID

An Ad Unit ID is a unique identifier given to the places in your app where ads are displayed. If you had an app with two activities, for example, each displaying a banner, you'd have two ad units, each with its own ID. AdMob ad unit IDs have the form ca-app-pub-XXXXXXXXXXXXXXXX/NNNNNNNNNN.

In order for your new app to display an ad, it needs to include an Ad Unit ID. Open your app's string resource file, which is found at BannerExample/res/values/strings.xml.

strings.xml



<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="app_name">My Application</string>
    <string name="hello_world">Hello world!</string>
    <string name="action_settings">Settings</string>
    <string name="banner_ad_unit_id">ca-app-pub-3940256099942544/6300978111</string>
</resources>

Add a new <string> tag as shown. Note that the Ad Unit ID provided above is just for testing. It will allow you to retrieve a sample banner ad and make sure your implementation is correct.

See the addTestDevice method documentation for information on how to get test ads with your own Ad Unit IDs.

Place an AdView in your main activity layout

There are only two steps remaining before your app is ready to show an ad. First, you'll need to modify your main activity's layout to include an AdView. Open BannerExample/res/layout/activity_main.xml in the editor.

activity_main.xml



<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    xmlns:ads="http://schemas.android.com/apk/res-auto"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context=".MainActivity">

    <TextView android:text="@string/hello_world" android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <com.google.android.gms.ads.AdView
        android:id="@+id/adView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_alignParentBottom="true"
        ads:adSize="BANNER"
        ads:adUnitId="@string/banner_ad_unit_id">
    </com.google.android.gms.ads.AdView>
</RelativeLayout>

Add two things to the XML:

An additional namespace used for ads, http://schemas.android.com/apk/res-auto.
A new element for your AdView. You'll be asked to provide layout_width and layout_height. You can set these both to wrap_content. In the AdView tag, set the adSize to BANNER and theadUnitId to @string/banner_ad_unit_id.

If you look at the last parameter in the AdView tag, you'll see that it's called adUnitId. This is the Ad Unit ID that the AdView will use when requesting ads. In this case, we've given it a reference to the string resource you added in the last step, so the AdView will use that value.

Load the ad in the MainActivity class

The last change needed is for you to add to your app's main activity class some Java code that will load an ad into the AdView.

Open your MainActivity.java file. It will be in the BannerExample/src/ folder, though again the exact subdirectory path will vary based on the domain you used when creating your project above. Once it's open in the editor, look for the onCreate method in the MainActivity class:

MainActivity.java (excerpt)



package ...
import ...
import ...
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;
public class MainActivity extends ActionBarActivity {

    ...

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        AdView mAdView = (AdView) findViewById(R.id.adView);
        AdRequest adRequest = new AdRequest.Builder().build();
        mAdView.loadAd(adRequest);
    }

    ...
}

Make these two changes:

Import the AdRequest and AdView classes
Add the code that will find your AdView in the layout, create an AdRequest, and then load an ad into theAdView with it.

Once that's completed, you're finished. You now have a fully functional AdView in your app's main activity.

Enjoy a freshly loaded ad

Your app is now ready to display an ad using the Google Mobile Ads SDK. Run it again, and you should see a test banner displayed at the bottom of the device screen:

Congratulations! You've successfully integrated banner ads into an app with Eclipse.

How to find Android default screen orientation.

2015-10-17T00:25:00.001-07:00

as i tried for the requirement of my personal project for getting default screen orientation.

i got the very simple solution taking int value

int orient=this.getResources().getConfiguration().orientation;

it will give the result either 1 or 2

1 is portrait and 2 is landscape

Auto logout after 15 minutes due to inactivity in android

2015-10-02T23:19:00.001-07:00

create a service

ublic class LogoutService extends Service{
public static CountDownTimer timer;
private final String TAG="Service";
@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
timer = new CountDownTimer(1 *60 * 1000, 1000) {
public void onTick(long millisUntilFinished) {
//Some code
Log.v(TAG, "Service Started");
}

public void onFinish() {
Log.v(TAG, "Call Logout by Service");
// Code for Logout
stopSelf();
}
};
}

@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}

}

then add the code for all activity

@Override

protected void onResume() {

// TODO Auto-generated method stub

super.onResume();

try {

LogoutService.timer.start();

} catch (Exception e) {

e.printStackTrace();

}

@Override

protected void onStop() {

// TODO Auto-generated method stub

super.onStop();

LogoutService.timer.cancel();

}

here after certain minutes the first page will be displayed automatically

Asynchronous HTTP Requests in Android Using Volley

2015-08-28T04:33:00.001-07:00

olley is the new Swiss Army Knife of Android Developers, it provides some nice utilities which makes the networking for Android apps easier and faster. The good thing about Volley is that it abstracts away the low level details of what HTTP client library is being used under the hood and helps you focus on writing nice and clean RESTful HTTP requests. Additionally all requests in Volley are executed asynchronously on a different thread without blocking your “main thread”.

What are the features that Volley provides?

Important features of the Volley library:

A high level API to make asynchronous RESTful HTTP requests
An elegant and robust Request queue
An extensible architecture which allows developers to implement custom request and response handling mechanism
Ability to use external HTTP client library
Robust request caching policy
Custom views to load and cache images from Network (NetworkImageView, ImageLoader etc)

Why use asynchronous HTTP requests?

In Android it is always a good practice to make HTTP requests asynchronously, in fact from HoneyComb onwards it is no longer just a “good practice”, you must make HTTP requests asynchronously off the main thread or else you’ll get this nasty exceptionandroid.os.NetworkOnMainThreadException. Blocking the main thread has some serious consequences, it hampers UI rendering, harmful to smooth user experience and above all it can cause dreaded ANR (Application Not Responding). To avoid all these pitfalls you as a developer should always ensure that your HTTP requests are on a different thread.

How to use Volley

We are going to cover the following items in this blog post, by the end of it you should be able to have a clear understanding of Volley and how to use it in your application.

Installing and using Volley as a library project
Using Request Queue
Making asynchronous JSON and String HTTP requests
Cancelling requests
Retrying failed requests, customizing request Timeout
Setting Request Headers (HTTP headers)
Using cookies
Error Handling

Installing and using Volley as a library project

Volley is part of AOSP and right now it is not being distributed as a JAR, the easiest way to include Volley to your project is to clone the Volley repository and set it as a library project.

Using as a library project

Git clone the repository using the following command and then import it as Android library project:

$ git clone https://android.googlesource.com/platform/frameworks/volley

Using as a JAR

Clone the repository as shown above and then run the following commands to export it as JAR and after that add the JAR file to your project’s /libs folder:

# in Volley project root (ensure the `android` executable is in your path)
$ android update project -p .
# the following command will create a JAR file and put it in ./bin
$ ant jar

Using Request Queue

All requests in Volley are placed in a queue first and then processed, here is how you will be creating a request queue:

RequestQueue

RequestQueue mRequestQueue = Volley.newRequestQueue(this); // 'this' is Context

Ideally you should have one centralized place for your Queue, and the best place to initialize queue is in your Application class. Here is how this can be done:

ApplicationController.java

public class ApplicationController extends Application {

    /**
     * Log or request TAG
     */
    public static final String TAG = "VolleyPatterns";

    /**
     * Global request queue for Volley
     */
    private RequestQueue mRequestQueue;

    /**
     * A singleton instance of the application class for easy access in other places
     */
    private static ApplicationController sInstance;

    @Override
    public void onCreate() {
        super.onCreate();

        // initialize the singleton
        sInstance = this;
    }

    /**
     * @return ApplicationController singleton instance
     */
    public static synchronized ApplicationController getInstance() {
        return sInstance;
    }

    /**
     * @return The Volley Request queue, the queue will be created if it is null
     */
    public RequestQueue getRequestQueue() {
        // lazy initialize the request queue, the queue instance will be
        // created when it is accessed for the first time
        if (mRequestQueue == null) {
            mRequestQueue = Volley.newRequestQueue(getApplicationContext());
        }

        return mRequestQueue;
    }

    /**
     * Adds the specified request to the global queue, if tag is specified
     * then it is used else Default TAG is used.
     * 
     * @param req
     * @param tag
     */
    public <T> void addToRequestQueue(Request<T> req, String tag) {
        // set the default tag if tag is empty
        req.setTag(TextUtils.isEmpty(tag) ? TAG : tag);

        VolleyLog.d("Adding request to queue: %s", req.getUrl());

        getRequestQueue().add(req);
    }

    /**
     * Adds the specified request to the global queue using the Default TAG.
     * 
     * @param req
     * @param tag
     */
    public <T> void addToRequestQueue(Request<T> req) {
        // set the default tag if tag is empty
        req.setTag(TAG);

        getRequestQueue().add(req);
    }

    /**
     * Cancels all pending requests by the specified TAG, it is important
     * to specify a TAG so that the pending/ongoing requests can be cancelled.
     * 
     * @param tag
     */
    public void cancelPendingRequests(Object tag) {
        if (mRequestQueue != null) {
            mRequestQueue.cancelAll(tag);
        }
    }
}

Making asynchronous HTTP requests

Volley provides the following utility classes which you can use to make asynchronous HTTP requests:

JsonObjectRequest — To send and receive JSON Object from the Server
JsonArrayRequest — To receive JSON Array from the Server
StringRequest — To retrieve response body as String (ideally if you intend to parse the response by yourself)

Note: To send parameters in request body you need to override either getParams() or getBody() method of the request classes (as required) described below.

JsonObjectRequest

This class can be used to send and receive JSON object. An overloaded constructor of this class allows to set appropriate request method (DELETE, GET, POST and PUT). This is the class which you should be using frequently if you are working with a RESTful backend. The following examples show how to make GET and POST requests.

Using HTTP GET method:

JsonObjectRequest

final String URL = "/volley/resource/12";
// pass second argument as "null" for GET requests
JsonObjectRequest req = new JsonObjectRequest(URL, null,
       new Response.Listener<JSONObject>() {
           @Override
           public void onResponse(JSONObject response) {
               try {
                   VolleyLog.v("Response:%n %s", response.toString(4));
               } catch (JSONException e) {
                   e.printStackTrace();
               }
           }
       }, new Response.ErrorListener() {
           @Override
           public void onErrorResponse(VolleyError error) {
               VolleyLog.e("Error: ", error.getMessage());
           }
       });

// add the request object to the queue to be executed
ApplicationController.getInstance().addToRequestQueue(req);

Using HTTP POST method:

JsonObjectRequest

final String URL = "/volley/resource/12";
// Post params to be sent to the server
HashMap<String, String> params = new HashMap<String, String>();
params.put("token", "AbCdEfGh123456");

JsonObjectRequest req = new JsonObjectRequest(URL, new JSONObject(params),
       new Response.Listener<JSONObject>() {
           @Override
           public void onResponse(JSONObject response) {
               try {
                   VolleyLog.v("Response:%n %s", response.toString(4));
               } catch (JSONException e) {
                   e.printStackTrace();
               }
           }
       }, new Response.ErrorListener() {
           @Override
           public void onErrorResponse(VolleyError error) {
               VolleyLog.e("Error: ", error.getMessage());
           }
       });

// add the request object to the queue to be executed
ApplicationController.getInstance().addToRequestQueue(req);

JsonArrayRequest

This class can be used to retrieve JSON array but not JSON object and only HTTP GET is supported as of now. As it supports only GET, so if you are to specify some querystring parameters then append those in the URL itself. The constructor does not accept request parameters.

JsonArrayRequest

final String URL = "/volley/resource/all?count=20";
JsonArrayRequest req = new JsonArrayRequest(URL, new Response.Listener<JSONArray> () {
    @Override
    public void onResponse(JSONArray response) {
        try {
            VolleyLog.v("Response:%n %s", response.toString(4));
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }
}, new Response.ErrorListener() {
    @Override
    public void onErrorResponse(VolleyError error) {
        VolleyLog.e("Error: ", error.getMessage());
    }
});

// add the request object to the queue to be executed
ApplicationController.getInstance().addToRequestQueue(req);

StringRequest

This class can be used to retrieve the response from server as String, ideally you should use this class when you intend to parse the response by yourself, e.g. if it is XML. It also provides overloaded constructors to further customize your request.

StringRequest

final String URL = "/volley/resource/recent.xml";
StringRequest req = new StringRequest(URL, new Response.Listener<String>() {
    @Override
    public void onResponse(String response) {
        VolleyLog.v("Response:%n %s", response);
    }
}, new Response.ErrorListener() {
    @Override
    public void onErrorResponse(VolleyError error) {
        VolleyLog.e("Error: ", error.getMessage());
    }
});

// add the request object to the queue to be executed
ApplicationController.getInstance().addToRequestQueue(req);

Setting a priority to the request is possible, this may be desirable in some cases where you want to move certain requests higher up in the order. The requests are processed from higher priorities to lower priorities, in FIFO order. To set a priority you need to override thegetPriority() method of the request class. The current available priorities are – Priority.LOW, Priority.NORMAL,Priority.HIGH and Priority.IMMEDIATE.

Cancelling requests

Volley provides powerful APIs to cancel pending or ongoing requests, one reason when you need to do this is if user rotates his device while a request is ongoing you need to cancel that because the Activity is going be restarted. The easiest way to cancel a request is to call the cancelAll(tag) method of the request queue, this will only work if you have set a tag on the request object before adding it to the queue. The ability to tag requests allows you to cancel all pending requests for that tag in one method call.

Adding a request to the queue using a tag:

request.setTag("My Tag");

As per the ApplicationController class shown above, this is how you’ll add the request to the queue:

ApplicationController.getInstance().addToRequestQueue(request, "My Tag");

Cancelling all requests with the specified tag:

mRequestQueue.cancelAll("My Tag");

As per the ApplicationController class shown above, this is how you’ll cancel the requests:

ApplicationController.getInstance().cancelPendingRequests("My Tag");

Retrying failed requests and customizing request Timeout

There is no direct way to specify request timeout value in Volley, but there is a workaround, you need to set a RetryPolicy on the request object. The DefaultRetryPolicy class takes an argument called initialTimeout, this can be used to specify a request timeout, make sure the maximum retry count is 1 so that volley does not retry the request after the timeout has been exceeded.

Setting Request Timeout

request.setRetryPolicy(new DefaultRetryPolicy(20 * 1000, 1, 1.0f));

If you want to retry failed requests (due to timeout) you can specify that too using the code above, just increase the retry count. Note the last argument, it allows you to specify a backoff multiplier which can be used to implement “exponential backoff” that some RESTful services recommend.

Setting Request Headers (HTTP headers)

Sometimes it is necessary to add extra headers to the HTTP requests, one common case is to add an “Authorization” header for HTTP Basic Auth. Volley Request class provides a method called getHeaders() which you need to override to add your custom headers if necessary.

Adding custom headers:

JsonObjectRequest req = new JsonObjectRequest(URL, new JSONObject(params),
           new Response.Listener<JSONObject>() {
               @Override
               public void onResponse(JSONObject response) {
                   // handle response
               }
           }, new Response.ErrorListener() {
               @Override
               public void onErrorResponse(VolleyError error) {
                   // handle error                        
               }
           }) {

       @Override
       public Map<String, String> getHeaders() throws AuthFailureError {
           HashMap<String, String> headers = new HashMap<String, String>();
           headers.put("CUSTOM_HEADER", "Yahoo");
           headers.put("ANOTHER_CUSTOM_HEADER", "Google");
           return headers;
       }
   };

Using cookies

There is no direct API through which you can set cookies in Volley. This makes sense because the core philosophy of Volley is to provide clean APIs to write RESTful HTTP requests, these days most of the RESTful API providers prefer authentication tokens instead of cookies. Using cookies in Volley is a bit more involed process and not very straight forward.

Here is a modified version of the getRequestQueue() method of our ApplicationController class shown above, also contains the rough code required to set a cookie:

// http client instance
private DefaultHttpClient mHttpClient;
public RequestQueue getRequestQueue() {
    // lazy initialize the request queue, the queue instance will be
    // created when it is accessed for the first time
    if (mRequestQueue == null) {
        // Create an instance of the Http client. 
        // We need this in order to access the cookie store
        mHttpClient = new DefaultHttpClient();
        // create the request queue
        mRequestQueue = Volley.newRequestQueue(this, new HttpClientStack(mHttpClient));
    }
    return mRequestQueue;
}

/**
 * Method to set a cookie
 */
public void setCookie() {
    CookieStore cs = mHttpClient.getCookieStore();
    // create a cookie
    cs.addCookie(new BasicClientCookie2("cookie", "spooky"));
}


// add the cookie before adding the request to the queue
setCookie();

// add the request to the queue
mRequestQueue.add(request);

Error Handling

As you have seen in the above code examples when you create a request object in Volley you need to specify an error listener, Volley invokes the onErrorResponse callback method of that listener passing an instance of the VolleyError object when there is an error while performing the request.

The following is the list of exceptions in Volley:

AuthFailureError — If you are trying to do Http Basic authentication then this error is most likely to come.
NetworkError — Socket disconnection, server down, DNS issues might result in this error.
NoConnectionError — Similar to NetworkError, but fires when device does not have internet connection, your error handling logic can club NetworkError and NoConnectionError together and treat them similarly.
ParseError — While using JsonObjectRequest or JsonArrayRequest if the received JSON is malformed then this exception will be generated. If you get this error then it is a problem that should be fixed instead of being handled.
ServerError — The server responded with an error, most likely with 4xx or 5xx HTTP status codes.
TimeoutError — Socket timeout, either server is too busy to handle the request or there is some network latency issue. By default Volley times out the request after 2.5 seconds, use a RetryPolicy if you are consistently getting this error.

You can use a simple helper like the following to display appropriate message when one of these exceptions occurs:

VolleyErrorHelper.java

public class VolleyErrorHelper {
     /**
     * Returns appropriate message which is to be displayed to the user 
     * against the specified error object.
     * 
     * @param error
     * @param context
     * @return
     */
  public static String getMessage(Object error, Context context) {
      if (error instanceof TimeoutError) {
          return context.getResources().getString(R.string.generic_server_down);
      }
      else if (isServerProblem(error)) {
          return handleServerError(error, context);
      }
      else if (isNetworkProblem(error)) {
          return context.getResources().getString(R.string.no_internet);
      }
      return context.getResources().getString(R.string.generic_error);
  }
  
  /**
  * Determines whether the error is related to network
  * @param error
  * @return
  */
  private static boolean isNetworkProblem(Object error) {
      return (error instanceof NetworkError) || (error instanceof NoConnectionError);
  }
  /**
  * Determines whether the error is related to server
  * @param error
  * @return
  */
  private static boolean isServerProblem(Object error) {
      return (error instanceof ServerError) || (error instanceof AuthFailureError);
  }
  /**
  * Handles the server error, tries to determine whether to show a stock message or to 
  * show a message retrieved from the server.
  * 
  * @param err
  * @param context
  * @return
  */
  private static String handleServerError(Object err, Context context) {
      VolleyError error = (VolleyError) err;
  
      NetworkResponse response = error.networkResponse;
  
      if (response != null) {
          switch (response.statusCode) {
            case 404:
            case 422:
            case 401:
                try {
                    // server might return error like this { "error": "Some error occured" }
                    // Use "Gson" to parse the result
                    HashMap<String, String> result = new Gson().fromJson(new String(response.data),
                            new TypeToken<Map<String, String>>() {
                            }.getType());

                    if (result != null && result.containsKey("error")) {
                        return result.get("error");
                    }

                } catch (Exception e) {
                    e.printStackTrace();
                }
                // invalid request
                return error.getMessage();

            default:
                return context.getResources().getString(R.string.generic_server_down);
            }
      }
        return context.getResources().getString(R.string.generic_error);
  }
}

How to change the layout theme of an Android Application

2015-08-16T23:15:00.002-07:00

What is Theme?

In any mobile, we have display settings, and the option to set the entire mobile theme such as light blue colour theme, red colour theme or any other colour. This will make the entire mobile functionality with this theme setting.

One needs to understand the style in Android so as to set the theme of an Android application.

Style is an XML file that resides in "project/res/values" directory and usually comprises of settings of appearances. The basic structure of "style.xml" is as below:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="nameOfTheTheme">
        <item name="android:attributeSets">value</item>
    </style>
</resources>

We can notice here that that in the style tag, there is one attribute named "name" which has the value. This value determines the "name of theme", for example, "MyTheme".

The next is an "item" tag that comprises of several attribute sets of views like "android:textColor", " android:textSize" etc. We need to specify this attribute and then write the value corresponding to it. Here is an example of a style.xml file:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="MyTheme">
        <item name="android:textColor">#FF0000</item>
    </style>
</resources>

It can be observed clearly that the name of the style is "My Theme" and the item tag has the attribute "Text Colour” that possesses the value "#FF0000" which is the colour "Red".

The following code needs to be written before the setting of a layout file in "setContentView". This will set the theme while your activity is loading.

activity.setTheme(R.style.MyTheme);
setContentView(R.layout.main);

The application theme will be set before loading layout using the above code. Let us follow the below steps to create the application.

Step1

An Android project needs to be created and name it "ChangeTheme". Now, do a right-click on the project. Select "New -> Android XML File". The below dialog box will get open so that the name of the XML file can be given. Select Resource Type as "Values" and name of the file as "style.xml".

Figure 1:Indicates the New Android Project to be created

Add the below code on opening that file:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="FirstTheme" >
        <item name="android:textColor">#FF0000</item>
    </style>
    <style name="SecondTheme" >
        <item name="android:textColor">#00FF00</item>
    </style>
    <style name="Thirdheme" >
        <item name="android:textColor">#0000F0</item>
    </style>
</resources>

It can be seen that, we have created 3 styles namely "FirstThem", "SecondTheme" and "ThirdTheme" with the same attribute "Text Colour". However the colour values are different.

Step 2

Now open your "main.xml" layout file that is residing in "res/layout" directory.

The following code needs to be entered in so as to add 3 buttons and 1 label in it.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello C-Sharp"
 android:textAppearance="?android:attr/textAppearanceLarge" />
    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="First Theme" />
    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Second Theme" />
    <Button
        android:id="@+id/button3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Third Theme" />
</LinearLayout>

After the completion of this code, you need to go to "graphical" view and the following screen will be displayed.

Figure 2: Indicates the screen post navigating to Graphical view

Step3

Open your activity file which in this case is the "ChangeThemeActivity.java" file. This file is located in the "src/package" directory.

The buttons need to be bind and give “OnClickListener” so as to set the theme at runtime. Write the subsequent code in that file in order to do that.

Listing 1: ChangeThemeActivity.java

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
public class ChangeThemeActivity extends Activity implements OnClickListener
{
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        Utils.onActivityCreateSetTheme(this);
        setContentView(R.layout.main);
          
                    findViewById(R.id.button1).setOnClickListener(this);
          findViewById(R.id.button2).setOnClickListener(this);
          findViewById(R.id.button3).setOnClickListener(this);
    }
     @Override
     public void onClick(View v) 
     {
          // TODO Auto-generated method stub
          switch (v.getId())
          {
          case R.id.button1:
          Utils.changeToTheme(this, Utils.THEME_DEFAULT);
          break;
          case R.id.button2:
          Utils.changeToTheme(this, Utils.THEME_WHITE);
          break;
          case R.id.button3:
          Utils.changeToTheme(this, Utils.THEME_BLUE);
          break;
          }
     }
}

Let us write the below code in the "Utils" file:

Listing 2: Utils.java

import android.app.Activity;
import android.content.Intent;
public class Utils
{
     private static int sTheme;
     public final static int THEME_DEFAULT = 0;
     public final static int THEME_WHITE = 1;
     public final static int THEME_BLUE = 2;
     /**
      * Set the theme of the Activity, and restart it by creating a new Activity of the same type.
      */
     public static void changeToTheme(Activity activity, int theme)
     {
          sTheme = theme;
          activity.finish();
activity.startActivity(new Intent(activity, activity.getClass()));
     }
     /** Set the theme of the activity, according to the configuration. */
     public static void onActivityCreateSetTheme(Activity activity)
     {
          switch (sTheme)
          {
          default:
          case THEME_DEFAULT:
              activity.setTheme(R.style.FirstTheme);
              break;
          case THEME_WHITE:
              activity.setTheme(R.style.SecondTheme);
              break;
          case THEME_BLUE:
              activity.setTheme(R.style.Thirdheme);
              break;
          }
     }
}

Description

changeToTheme ( Activity activity, int theme )

There are two arguments in this method, one is "Activity", that provides this method to identify the activity that has called this method and which theme to change. The other argument is “Theme" id. This is already declared in the beginning of the class and is written below:

public final static int THEME_DEFAULT = 0;
public final static int THEME_WHITE = 1;
public final static int THEME_BLUE = 2;

We declare three constants to identify each of them since we have 3 themes.

onActivityCreateSetTheme ( Activity activity )

The method holds the responsibility for setting the theme to the activity. After this, the method will verify which theme to set. It will identify the same by making use of a switch case and will call the "setTheme" method.

Step 4

We are prepared now to run the application. Before that, do have "AVD" (Android Virtual Device) added in your eclipse else go to "Window -> AVD Manager" and add a new AVD device to it.

To begin with the execution, right-click on your "project" and select "Run As -> Android Application" thereby making your application run in the emulator.

Figure 3: Both screens referring to the application executed in the emulator

Conclusion

The tutorial briefed about the process to create styles, to use it as a theme of an application and finally on the way to alter the theme of an application at the time of execution.

finish activity when back button twice pressed? [duplicate]

2015-08-13T23:21:00.001-07:00

1) Make a global vairable in your class like...

private boolean backPressedToExitOnce = false;
private Toast toast = null;

2) Then implement onBackPressed of activity like this...

@Override
public void onBackPressed() {
    if (backPressedToExitOnce) {
        super.onBackPressed();
    } else {
        this.backPressedToExitOnce = true;
        showToast("Press again to exit");
        new Handler().postDelayed(new Runnable() {

            @Override
            public void run() {
                backPressedToExitOnce = false;
            }
        }, 2000);
    }
}

3) Use this trick to handle this toast efficiantly...

/**
 * Created to make sure that you toast doesn't show miltiple times, if user pressed back
 * button more than once. 
 * @param message Message to show on toast.
 */
private void showToast(String message) {
    if (this.toast == null) {
        // Create toast if found null, it would he the case of first call only
        this.toast = Toast.makeText(this, message, Toast.LENGTH_SHORT);

    } else if (this.toast.getView() == null) {
        // Toast not showing, so create new one
        this.toast = Toast.makeText(this, message, Toast.LENGTH_SHORT);

    } else {
        // Updating toast message is showing
        this.toast.setText(message);
    }

    // Showing toast finally
    this.toast.show();
}

4) And use this trick to hide toast when you activity is closed...

/**
 * Kill the toast if showing. Supposed to call from onPause() of activity.
 * So that toast also get removed as activity goes to background, to improve
 * better app experiance for user
 */
private void killToast() {
    if (this.toast != null) {
        this.toast.cancel();
    }
}

5) Implement you onPause() like that, to kill toast immidiatly as activity goes to background

@Override
protected void onPause() {
    killToast();
    super.onPause();
}

Refer Sri Lanka to International Criminal Court

2015-07-21T21:55:00.001-07:00

Refer Sri Lanka to International Criminal Court

Android ActionBar Tab Color

2015-07-20T21:42:00.001-07:00

For anyone wants to change actionbar color/background in code, you can do something like this

final ActionBar actionBar = getActionBar();
actionBar.setBackgroundDrawable(getResources().getDrawable(R.drawable.action_bar_bg));

To change the tab bar color under the actionbar:

actionBar.setStackedBackgroundDrawable(new ColorDrawable(getResources().getColor(R.color.color_brown_dark)));

To change tab bar background:

actionBar.setStackedBackgroundDrawable(getResources().getDrawable(
            R.drawable.coupon_header));

GridView with Auto Resized Images on Android

2015-07-20T00:08:00.001-07:00

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <GridView
        android:id="@+id/gridview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:verticalSpacing="0dp"
        android:horizontalSpacing="0dp"
        android:stretchMode="columnWidth"
        android:numColumns="2" />
</FrameLayout>


package com.rogcg.gridviewexample;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.ImageView;

public class SquareImageView extends ImageView
{
    public SquareImageView(Context context)
    {
        super(context);
    }

    public SquareImageView(Context context, AttributeSet attrs)
    {
        super(context, attrs);
    }

    public SquareImageView(Context context, AttributeSet attrs, int defStyle)
    {
        super(context, attrs, defStyle);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
    {
       Context context=getContext();
     
     WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
     Display display = wm.getDefaultDisplay();
     
     Point size = new Point();
     display.getSize(size);
     int width = size.x;
     int height = size.y-80;

        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        //setMeasuredDimension(getMeasuredWidth(), getMeasuredWidth()); //Snap to width
        if(Config.orientation==1)
        setMeasuredDimension(getMeasuredWidth(), height/3); //Snap to width
        else
         setMeasuredDimension(getMeasuredWidth(), height/2); //Snap to width   }
}



And now we make a layout for a grid item using this SquareImageView class and set the scaleType to centerCrop. Let's call this filegridview_item.xml.

<?xml version="1.0" encoding="utf-8"?>

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <com.rogcg.gridviewexample.SquareImageView
        android:id="@+id/picture"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scaleType="centerCrop"
        />
    <TextView
        android:id="@+id/text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingLeft="10dp"
        android:paddingRight="10dp"
        android:paddingTop="15dp"
        android:paddingBottom="15dp"
        android:layout_gravity="bottom"
        android:textColor="@android:color/white"
        android:background="#55000000"
        />
</FrameLayout>

package com.mafiree;

import java.util.ArrayList;
import java.util.List;

import com.mafiree.source.Config;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.content.res.Configuration;
import android.graphics.Point;
import android.os.Bundle;
import android.view.Display;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.BaseAdapter;
import android.widget.FrameLayout;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

public class DashBoard extends Activity{

 @Override
 protected void onCreate(Bundle savedInstanceState) {  
  super.onCreate(savedInstanceState);
  setContentView(R.layout.dash_board_demo);
  Config.orientation=getScreenOrientation();
   GridView gridView = (GridView)findViewById(R.id.gridview);
         gridView.setAdapter(new MyAdapter(this));
  //String[] name={"Current Health","Outstanding Issues","Architecture","Tickets","Backup","Activity"};
 }
 
  private class MyAdapter extends BaseAdapter
     {
         private List<Item> items = new ArrayList<Item>();
         private LayoutInflater inflater;

         public MyAdapter(Context context)
         {
             inflater = LayoutInflater.from(context);

             items.add(new Item("Current Health", R.drawable.test));
             items.add(new Item("Outstanding Issues", R.drawable.test));
             items.add(new Item("Architecture", R.drawable.test));
             items.add(new Item("Tickets", R.drawable.test));
             items.add(new Item("Backup", R.drawable.test));
             items.add(new Item("Activity", R.drawable.test));
         }

         @Override
         public int getCount() {
             return items.size();
         }

         @Override
         public Object getItem(int i)
         {
             return items.get(i);
         }

         @Override
         public long getItemId(int i)
         {
             return items.get(i).drawableId;
         }

         @SuppressLint("NewApi")
   @Override
         public View getView(int i, View view, ViewGroup viewGroup)
         {
             View v = view;
             ImageView picture;
             TextView name;

             if(v == null)
             {
                v = inflater.inflate(R.layout.gridview_item, viewGroup, false);
                v.setTag(R.id.picture, v.findViewById(R.id.picture));
                v.setTag(R.id.text, v.findViewById(R.id.text));
             }

             picture = (ImageView)v.getTag(R.id.picture);
             name = (TextView)v.getTag(R.id.text);

             Item item = (Item)getItem(i);

             Display display = getWindowManager().getDefaultDisplay();
             Point size = new Point();
             display.getSize(size);
             int width = size.x;
             int height = size.y;
             
             int orentation=getScreenOrientation();
             System.out.println("orientation: "+getScreenOrientation());
             // picture.getLayoutParams().height = 20;
             //  picture.requestLayout();
            DashBoard.this.getResources().getConfiguration();
             System.out.println();
             android.view.ViewGroup.LayoutParams layoutParams = picture.getLayoutParams();
             if(orentation==2){
             layoutParams.width = width/3;
             layoutParams.height = 50;
             picture.setLayoutParams(layoutParams);
             System.out.println("setting orientation");
             }else{
              System.out.println("nothing");
             }
             
             
             
             System.out.println("width :"+width);
             System.out.println("height :"+height);
             picture.setImageResource(item.drawableId);
             name.setText(item.name);

             
             picture.setId(i);
             picture.setOnClickListener(new OnClickListener() {
     
     @Override
     public void onClick(View v) {
      Toast.makeText(getApplicationContext(), "click-"+v.getId(), Toast.LENGTH_SHORT).show();
     }
    });
             
             return v;
         }

         private class Item
         {
             final String name;
             final int drawableId;

             Item(String name, int drawableId)
             {
                 this.name = name;
                 this.drawableId = drawableId;
             }
         }

  
     }
  
  
  public int getScreenOrientation()
  {
      Display getOrient = getWindowManager().getDefaultDisplay();
      int orientation = Configuration.ORIENTATION_UNDEFINED;
      if(getOrient.getWidth()==getOrient.getHeight()){
          orientation = Configuration.ORIENTATION_SQUARE;
      } else{ 
          if(getOrient.getWidth() < getOrient.getHeight()){
              orientation = Configuration.ORIENTATION_PORTRAIT;
          }else { 
               orientation = Configuration.ORIENTATION_LANDSCAPE;
          }
      }
      return orientation;
  }
 }

Android play song continuously(ArrayList) in service

2015-05-28T02:28:00.001-07:00

package com.source;

import java.io.IOException;
import java.util.ArrayList;

import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.drm.DrmStore.Playback;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.net.Uri;
import android.os.IBinder;
import android.os.PowerManager;
import android.util.Log;
import android.widget.Toast;

public class MyService extends Service implements OnCompletionListener,
MediaPlayer.OnPreparedListener, MediaPlayer.OnErrorListener{

Context context;
private static final String ACTION_PLAY = "PLAY";
private static final String TAG = "SONG SERVICE";
MediaPlayer mediaPlayer;
private int currentTrack = 0;
ArrayList<String> list;
public MyService() {
context=getBaseContext();
}

@Override
public IBinder onBind(Intent intent) {
throw new UnsupportedOperationException("Not yet implemented");
}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
list = (ArrayList<String>)intent.getSerializableExtra("arraylist");
int count=0;
Log.d(TAG, "total count:"+list.size());
//playing song one by one
for (String string : list) {
//play(string);
count++;
Log.d(TAG, "count:"+list);
}
play(currentTrack);
Log.d(TAG, "count:"+count);
if(count==list.size()){
//stopSelf();
Log.d(TAG, "stoping service");
//mediaPlayer.setOnCompletionListener(this);
}else{
Log.d(TAG, "not stoping service");
}

if (!mediaPlayer.isPlaying()) {
mediaPlayer.start();
Log.d(TAG, "oncommat");
}
return START_STICKY;
}

@Override
public void onCreate() {

Toast.makeText(this, "Service was Created", Toast.LENGTH_LONG).show();
}

@Override
public void onStart(Intent intent, int startId) {
// Perform your long running operations here.
Toast.makeText(this, "Service Started", Toast.LENGTH_LONG).show();
}

@Override
public void onDestroy() {
Toast.makeText(this, "Service Destroyed", Toast.LENGTH_LONG).show();
Log.d("service", "destroyed");
if (mediaPlayer.isPlaying()) {
mediaPlayer.stop();
}
mediaPlayer.release();
}

@Override
public boolean onError(MediaPlayer mp, int what, int extra) {
// TODO Auto-generated method stub
return false;
}

@Override
public void onPrepared(MediaPlayer mp) {
// TODO Auto-generated method stub

}

private void play(int id) {

if(mediaPlayer!=null && mediaPlayer.isPlaying()){
Log.d("*****begin*****", "playing");
stopPlaying();
Log.d("*****begin*****", "stoping");
} else{
Log.d("*****begin*****", "nothing");
}

Log.d("*****play count*****", "="+currentTrack);
Log.i("******playing", list.get(currentTrack));

Uri myUri1 = Uri.parse(list.get(id));
mediaPlayer = new MediaPlayer();
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mediaPlayer.setWakeMode(getApplicationContext(), PowerManager.PARTIAL_WAKE_LOCK);
mediaPlayer.setOnPreparedListener(this);
//mediaPlayer.setOnCompletionListener(this);
mediaPlayer.setOnErrorListener(this);
try {
mediaPlayer.setDataSource(context, myUri1);
Log.i("******playing", myUri1.getPath());
} catch (IllegalArgumentException e) {
Toast.makeText(context, "You might not set the URI correctly!", Toast.LENGTH_LONG).show();
} catch (SecurityException e) {
Toast.makeText(context, "You might not set the URI correctly!", Toast.LENGTH_LONG).show();
} catch (IllegalStateException e) {
Toast.makeText(context, "You might not set the URI correctly!", Toast.LENGTH_LONG).show();
} catch (IOException e) {
e.printStackTrace();
}

try {
mediaPlayer.prepare();
} catch (IllegalStateException e) {
Toast.makeText(context, "You might not set the URI correctly!", Toast.LENGTH_LONG).show();
} catch (IOException e) {
Toast.makeText(context, "You might not set the URI correctly!", Toast.LENGTH_LONG).show();
}

mediaPlayer.setOnCompletionListener(new OnCompletionListener() {

@Override
public void onCompletion(MediaPlayer mp) {
currentTrack=currentTrack+1;
play(currentTrack);
/* currentTrack = (currentTrack + 1) % list.size();
Uri nextTrack=Uri.parse(list.get(currentTrack));

try {
mediaPlayer.setDataSource(context,nextTrack);
mediaPlayer.prepare();
// mediaPlayer.start();
} catch (Exception e) {
e.printStackTrace();
}*/

}
});

mediaPlayer.start();
}

private void stopPlaying() {
if (mediaPlayer != null) {
mediaPlayer.stop();
mediaPlayer.release();
mediaPlayer = null;
}
}

@Override
public void onCompletion(MediaPlayer mp) {
// TODO Auto-generated method stub

}

}

call the service

stopService();
startService(getSongsFromAlbum(v.getTag().toString()));

private void startService(ArrayList<String> list) {
Intent intent=new Intent(getActivity(),MyService.class);
intent.putExtra("arraylist", list);
getActivity().startService(intent);

}

private void stopService() {
getActivity().stopService(new Intent(getActivity(),MyService.class));
}

Swipable Tabs changing app icon as well as tab icon

2015-05-22T04:35:00.000-07:00

SongGalleryActivity .java

package com.mtag;

import com.util.NotificationPanel;

import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.ActionBar;
import android.app.ActionBar.Tab;
import android.app.FragmentTransaction;
import android.content.Intent;
import android.graphics.drawable.ColorDrawable;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.widget.Toast;

@SuppressLint("NewApi")
public class SongGalleryActivity extends FragmentActivity implements
ActionBar.TabListener {
int backButtonCount=0;
private ViewPager viewPager;
private TabsPagerAdapter mAdapter;
private android.app.ActionBar actionBar;
// Tab titles
private String[] tabs = { "Genres", "Artists", "Albums","Songs","PlayLists" };

private static final int[] ICONS = new int[] {
R.drawable.genre_inactive,
R.drawable.artist_inactive,
R.drawable.albums_inactive,
R.drawable.songs_inactive,
R.drawable.lists_inactive,
};

private static final int[] ICONS_SELECTED = new int[] {
R.drawable.genre_active,
R.drawable.artist_active,
R.drawable.albums_active,
R.drawable.songs_active,
R.drawable.lists_active,
};

@TargetApi(Build.VERSION_CODES.HONEYCOMB)
@SuppressLint("NewApi")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_song_gallery);

String val=getIntent().getStringExtra("DO");
Log.d("value..............", "::::"+val);

// Initilization
viewPager = (ViewPager) findViewById(R.id.pager);
actionBar = getActionBar();
mAdapter = new TabsPagerAdapter(getSupportFragmentManager());

viewPager.setAdapter(mAdapter);
actionBar.setHomeButtonEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
LayoutInflater mInflater = LayoutInflater.from(this);
View mCustomView = mInflater.inflate(R.layout.custom_actionbar, null);
actionBar.setCustomView(mCustomView);
actionBar.setDisplayShowCustomEnabled(true);

/* // Adding Tabs
for (String tab_name : tabs) {
actionBar.addTab(actionBar.newTab().setText(tab_name)
.setTabListener(this));
}*/

// instead of NewsFeedActivity you have to use your activity name here
for (int i=0; i < tabs.length; i++)
{
actionBar.addTab(actionBar.newTab().setText(tabs[i])
.setIcon(SongGalleryActivity.this.getResources().getDrawable(ICONS[i]))
.setTabListener(this));
}//endfor

actionBar.setStackedBackgroundDrawable(new ColorDrawable(getResources().getColor(R.color.white)));

//actionBar.setStackedBackgroundDrawable(getResources().getDrawable(R.color.white));

/**
* on swiping the viewpager make respective tab selected
* */
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {

@Override
public void onPageSelected(int position) {
// on changing the page
// make respected tab selected
actionBar.setSelectedNavigationItem(position);
//actionBar.setIcon(ICONS_SELECTED[position]);// this is for changing logo in the applcation also
}

@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}

@Override
public void onPageScrollStateChanged(int arg0) {
}
});

}

@Override
public void onTabReselected(Tab arg0, FragmentTransaction arg1) {
// TODO Auto-generated method stub

}

@SuppressLint("NewApi")
@Override
public void onTabSelected(Tab tab, FragmentTransaction arg1) {
viewPager.setCurrentItem(tab.getPosition());
tab.setIcon(ICONS_SELECTED[tab.getPosition()]);
}

@Override
public void onTabUnselected(Tab tab, FragmentTransaction arg1) {
tab.setIcon(ICONS[tab.getPosition()]);

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return super.onCreateOptionsMenu(menu);
}

@Override
public void onBackPressed() {

if(backButtonCount >= 1)
{

NotificationPanel notificationPanel=new NotificationPanel(this);
notificationPanel.notificationCancel();

Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
else
{
Toast.makeText(this, "Press the back button once again to close the application.", Toast.LENGTH_SHORT).show();
backButtonCount++;
}
}
}

Note :

actionBar.setIcon(ICONS_SELECTED[position]);// this is for changing logo in the applcation also

if u add this
public void onPageSelected(int position) {
// on changing the page
// make respected tab selected
actionBar.setSelectedNavigationItem(position);
actionBar.setIcon(ICONS_SELECTED[position]);
}

the application icon also will changed

TabsPagerAdapter .java

package com.mtag;

import com.viewpagerindicator.IconPagerAdapter;

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;

public class TabsPagerAdapter extends FragmentPagerAdapter implements IconPagerAdapter {

public TabsPagerAdapter(FragmentManager fm) {
super(fm);
// TODO Auto-generated constructor stub
}

@Override
public Fragment getItem(int index) {
switch (index) {
case 0:
// Genres fragment activity
return new GenresFragment();
case 1:
// Artist fragment activity
return new ArtistsFragment();
case 2:
// ALbum fragment activity
return new AlbumsFragment();

case 4:
// Playlist fragment activity
return new PlaylistFragment();
case 3:
// ALbum fragment activity
return new SongsFragment();
}

return null;
}

@Override
public int getCount() {
// TODO Auto-generated method stub
return 5;
}

@Override
public int getIconResIdNormal(int index) {
// TODO Auto-generated method stub
return 0;
}

@Override
public int getIconResIdSelected(int index) {
// TODO Auto-generated method stub
return 0;
}

@Override
public int getBackgroundResIdSelected(int index) {
// TODO Auto-generated method stub
return 0;
}

@Override
public int getBackgroundResIdNormal(int index) {
// TODO Auto-generated method stub
return 0;
}

}

fragment

package com.mtag;

import java.io.IOException;

import java.util.ArrayList;

import java.util.Collections;

import java.util.Comparator;

import java.util.HashMap;

import java.util.Set;

import android.annotation.TargetApi;

import android.content.ContentResolver;

import android.content.Context;

import android.database.Cursor;

import android.media.AudioManager;

import android.media.MediaPlayer;

import android.net.Uri;

import android.os.Build;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.ViewGroup;

import android.widget.ArrayAdapter;

import android.widget.LinearLayout;

import android.widget.ListView;

import android.widget.SectionIndexer;

import android.widget.TextView;

import android.widget.Toast;

import com.source.Song;

import com.util.NotificationPanel;

@TargetApi(Build.VERSION_CODES.HONEYCOMB)

public class SongsFragment extends Fragment{

LayoutInflater inflater;

ListView listView;

View rootView;

private ArrayList<Song> songList;

ArtistsAdapter adapter;

MediaPlayer mediaPlayer;

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,

Bundle savedInstanceState) {

this.inflater=inflater;

View rootView = inflater.inflate(R.layout.fragment_songs, container, false);

this.rootView=rootView;

this.inflater=inflater;

GUI();

return rootView;

}

private void GUI() {

String val=getActivity().getIntent().getStringExtra("DO");

Log.d("value..............", "::::"+val);

listView=(ListView)rootView.findViewById(R.id.listViewSongs);

songList = new ArrayList<Song>();

//get songs from device

getSongList();

//sort alphabetically by title

Collections.sort(songList, new Comparator<Song>(){

public int compare(Song a, Song b){

return a.getTitle().compareTo(b.getTitle());

}

});

fillAdapter();

//create and set adapter

/*com.source.SongAdapter adapter=new com.source.SongAdapter(getActivity(), songList);

listView.setAdapter(adapter);*/

}

private void fillAdapter() {

if(null != songList || songList.size() > 0){

adapter=new ArtistsAdapter(getActivity());

listView.setAdapter(adapter);

}

class ArtistsAdapter extends ArrayAdapter implements SectionIndexer{

Context context;

HashMap<String, Integer> alphaIndexer;

String[] sections;

public ArtistsAdapter(Context context) {

super(context, R.layout.row_song_song, songList);

this.context = context;

alphaIndexer = new HashMap<String, Integer>();

int size = songList.size();

for (int x = 0; x < size; x++) {

Song s = songList.get(x);

// get the first letter of the store

String ch = s.getAlbum().substring(0, 1);

// convert to uppercase otherwise lowercase a -z will be sorted after upper A-Z

ch = ch.toUpperCase();

// HashMap will prevent duplicates

alphaIndexer.put(ch, x);

}

Set<String> sectionLetters = alphaIndexer.keySet();

// create a list from the set to sort

ArrayList<String> sectionList = new ArrayList<String>(sectionLetters);

Collections.sort(sectionList);

sections = new String[sectionList.size()];

sectionList.toArray(sections);

}

@Override

public View getView(final int position, View convertView,

ViewGroup parent) {

final Holder holder;

if (convertView == null) {

holder = new Holder();

convertView = (LinearLayout) LayoutInflater.from(context)

.inflate(R.layout.row_song_song, null);

holder.texSongName=(TextView)convertView.findViewById(R.id.song_title);

holder.textSongDetail=(TextView)convertView.findViewById(R.id.song_data);

holder.layout=(LinearLayout)convertView.findViewById(R.id.song_layout);

convertView.setTag(holder);

} else {

holder = (Holder) convertView.getTag();

}

holder.layout.setTag(songList.get(position).getData());

holder.texSongName.setText(songList.get(position).getTitle());

holder.textSongDetail.setText(songList.get(position).getArtist());

//holder.texSongName.setTag(songList.get(position).getData());

holder.layout.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

play(v.getTag().toString());

// Log.d("id", ":"+v.getId());

Toast.makeText(getContext(), "clicked"+v.getTag().toString(), Toast.LENGTH_SHORT).show();

}

});

return convertView;

}

class Holder{

TextView texSongName,textSongDetail;

LinearLayout layout;

}

@Override

public Object[] getSections() {

// TODO Auto-generated method stub

return sections;

}

public int getPositionForSection(int section) {

return alphaIndexer.get(sections[section]);

}

@Override

public int getSectionForPosition(int position) {

// TODO Auto-generated method stub

return 1;

}

int count=0;

String playFile;

private void play(String path) {

count++;

playFile=path;

//showNotification();

new NotificationPanel(getActivity());

if(mediaPlayer!=null && mediaPlayer.isPlaying()){

Log.d("*****begin*****", "playing");

stopPlaying();

Log.d("*****begin*****", "stoping");

} else{

Log.d("*****begin*****", "nothing");

}

Uri myUri1 = Uri.parse(path);

mediaPlayer = new MediaPlayer();

mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);

try {

mediaPlayer.setDataSource(getActivity(), myUri1);

} catch (IllegalArgumentException e) {

Toast.makeText(getActivity(), "You might not set the URI correctly!", Toast.LENGTH_LONG).show();

} catch (SecurityException e) {

Toast.makeText(getActivity(), "You might not set the URI correctly!", Toast.LENGTH_LONG).show();

} catch (IllegalStateException e) {

Toast.makeText(getActivity(), "You might not set the URI correctly!", Toast.LENGTH_LONG).show();

} catch (IOException e) {

e.printStackTrace();

}

try {

mediaPlayer.prepare();

} catch (IllegalStateException e) {

Toast.makeText(getActivity(), "You might not set the URI correctly!", Toast.LENGTH_LONG).show();

} catch (IOException e) {

Toast.makeText(getActivity(), "You might not set the URI correctly!", Toast.LENGTH_LONG).show();

}

mediaPlayer.start();

}

private void stopPlaying() {

if (mediaPlayer != null) {

mediaPlayer.stop();

mediaPlayer.release();

mediaPlayer = null;

}

//method to retrieve song info from deviceyyyy

public void getSongList(){

//query external audio

ContentResolver musicResolver = getActivity().getContentResolver();

Uri musicUri = android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;

Cursor musicCursor = musicResolver.query(musicUri, null, null, null, null);

//iterate over results if valid

if(musicCursor!=null && musicCursor.moveToFirst()){

//get columns

int titleColumn = musicCursor.getColumnIndex

(android.provider.MediaStore.Audio.Media.TITLE);

int idColumn = musicCursor.getColumnIndex

(android.provider.MediaStore.Audio.Media._ID);

int artistColumn = musicCursor.getColumnIndex

(android.provider.MediaStore.Audio.Media.ARTIST);

int albumColumn = musicCursor.getColumnIndex

(android.provider.MediaStore.Audio.Media.ALBUM);

int trackColumn = musicCursor.getColumnIndex

(android.provider.MediaStore.Audio.Media.TRACK);

int dataColumn = musicCursor.getColumnIndex

(android.provider.MediaStore.Audio.Media.DATA);

//add songs to list

do {

long thisId = musicCursor.getLong(idColumn);

String thisTitle = musicCursor.getString(titleColumn);

String thisArtist = musicCursor.getString(artistColumn);

String thisAlbum = musicCursor.getString(albumColumn);

String thisTrack = musicCursor.getString(trackColumn);

String thisData = musicCursor.getString(dataColumn);

songList.add(new Song(thisId, thisTitle, thisArtist,thisAlbum,thisTrack,thisData));

}

while (musicCursor.moveToNext());

}