Java2Tw

SDK 升級到 android-12 模擬器出問題

2011-09-07T01:31:00.000-07:00

今天要寫一些程式到Galaxy Tab 10.1時把SDK升到API Level 12,啟動模擬器時出現了

invalid command-line parameter: Files\Android\android-sdk-windows\tools/emulator-arm.exe.
Hint: use '@foo' to launch a virtual device named 'foo'.please use -help for more information

問題點是發生在SDK資料夾的路徑問題,只要路徑有空白格就會出錯

C:\Program Files\Android\android-sdk-windows
改成
C:\PROGRA~1\Android\android-sdk-windows

模擬器就順利起來了

SQLite query in android application

2011-08-01T23:35:00.000-07:00

在Android 裡使用SQLite,最重要的class 就是 SQLiteOpenHelper

重點來了

getWritableDatabase()

Database upgrade may take a long time, you should not call this method from the application main thread, including from ContentProvider.onCreate().

getReadableDatabase()

Like getWritableDatabase(), this method may take a long time to return, so you should not call it from the application main thread, including from ContentProvider.onCreate().

說實在的,在對資料庫的抓取或異動還滿難用的....

public Cursor query (boolean distinct, String table, String[] columns, String selection, String[] selectionArgs, String groupBy, String having, String orderBy, String limit)

Since: API Level 1

Query the given URL, returning a Cursor over the result set.

Parameters

distinct	要不要 DISTINCT, TRUE/FALSE
table	表格名稱
columns	new String[]{"column01","column02","column03"};
selection	"column01 = ? AND "column02 = ?";
selectionArgs	new String[]{"A","B","C"}; selection 與 selectionArgs 是配對的
groupBy	A filter declaring how to group rows, formatted as an SQL GROUP BY clause (excluding the GROUP BY itself). Passing null will cause the rows to not be grouped.
having	A filter declare which row groups to include in the cursor, if row grouping is being used, formatted as an SQL HAVING clause (excluding the HAVING itself). Passing null will cause all row groups to be included, and is required when row grouping is not being used.
orderBy	How to order the rows, formatted as an SQL ORDER BY clause (excluding the ORDER BY itself). Passing null will use the default sort order, which may be unordered.
limit	Limits the number of rows returned by the query, formatted as LIMIT clause. Passing null denotes no LIMIT clause.

Returns

A Cursor object, which is positioned before the first entry. Note that Cursors are not synchronized, see the documentation for more details.

一般QUERY
SQLiteDatabase db = SQLiteOpenHelper.getReadableDatabase();
Cursor cursor = db.query(TABLE_NAME, new String[] { "COLUMN01","COLUMN02" },
"cCarBocePartsIdn LIKE ?", new String[] { key+"%" }, null, null, null);

Activity & Service 生命週期表

2011-07-13T01:50:00.000-07:00

慢跑的新鞋子

2011-06-25T01:46:00.001-07:00

聽說adidas CLIMA COOL 這系列的鞋還滿不錯穿的.

停車位

2011-06-04T20:14:00.001-07:00

我家旁邊的停車位長香菇了

狗熊迷路了...

2011-05-22T21:34:00.000-07:00

我的HTC Hero狗熊機，送修回來後用個幾天突然間發現......狗熊迷路了.......
GPS完全收不到衛星訊號，原來那幾天都是靠基地台定位的.....

所以又送神腦維修了去找回路感了....

我的英雄變狗熊了

2011-05-10T23:21:00.000-07:00

最近幫我的手機刷了許多的不同版本的ROM想要讓老英雄速度快一點
結果是有快一點....不過刷上癮之後就開始亂搞，砍掉一堆系統的APK看會不會快一點...

昨天又要重刷的時候，我也不知道幹了什麼蠢事......
從此HERO就安眠了......

變更Eclipse workspace的路徑

2011-02-13T18:44:00.000-08:00

設定檔的路徑：
/eclipse/configuration/.settings/org.eclipse.ui.ide.prefs

#Thu Jun 17 15:13:08 CST 2010
RECENT_WORKSPACES_PROTOCOL=3
MAX_RECENT_WORKSPACES=5
SHOW_WORKSPACE_SELECTION_DIALOG=false
eclipse.preferences.version=1
RECENT_WORKSPACES=E:\\My Dropbox\\Android\\Developer\\workspace

SQL Console

2010-12-16T18:08:00.000-08:00

SQL Console可以從手機直接連接至資料庫,只要登入的權限足夠即可以執行相關的SQL指令並取得目前資料庫所有的TABLE與VIEW,且及時的從螢幕上得到結果,且可以匯出該查詢的結果至SD卡.
支援: MS SQL Server , MySQL , PostgreSQL.
之後將會持續更新資料庫種類

2010/12/24
1.新增MSSQL的Procedure列表,並可即時查看原始碼或是匯出至SD卡 /SD/AnySQL Console/MSSQL/Procedure名稱.txt
2.介面修正

哪裡有車位

2010-09-13T22:57:00.000-07:00

功能說明：

可以即時讀取"臺北市停車管理工程處"網頁所提供的臺北市公有停車最新的剩餘車位。

點選畫面上的圖示可以得知收費相關資訊,地址,電話。

"＊臺北市停車管理工程處的網頁速度有點慢所以請見諒!!"。

iPhone 的台北愛泊車要收錢,我們Android的通通免費啦!!!

已測試環境:
1.HTC Hero 2.1
2.Motorola Milestone 2.1

Android 多國語系開發方式

2010-08-19T03:27:00.000-07:00

Android 多國語系開發方式
1. 複製 res/values 的資料改名成對應的語系資料夾
2. 將文字內容改成該語系即可

支援的語系目錄檔名:
繁體中文: values-zh-rTW
簡體中文: values-zh-rCN
日文: values-ja
英文: values-en
美式英文: values-en-rUS
英式英文: values-en-rUK

燃燒吧,脂肪!!!

2010-08-18T03:42:00.000-07:00

燃燒吧,脂肪!是一套跑步專用卡路里計算工具，它能計算每一次跑步所減少的卡路里與距離，並且將累加每次運動所減少的卡路里與距離,所以..大家一起來燃燒脂肪吧!!＊作者使用這個軟體之後短短一個半月從86公斤掉到了76公斤，由此證明這個軟體有效，絕對不會像地下電台賣減肥藥一樣誇大不實!!!!

打電話

2010-05-01T07:31:00.000-07:00

button.setOnClickListener(new Button.OnClickListener(){
   @Override
   public void onClick(View v) {
   Intent intent = new Intent("android.intent.action.CALL"
   ,Uri.parse("tel:"+editText.getText().toString()));
   startActivity(intent);
   }
});

記得加這一條

uses-permission android:name="android.permission.CALL_PHONE"

AlertDialog 使用

2010-04-29T23:32:00.000-07:00

public class main extends Activity {
   private Button AlertButton;
public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
setContentView(R.layout.main);
       AlertButton = (Button) findViewById(R.id.AlertButton);

       AlertButton.setOnClickListener(new Button.OnClickListener() {
       @Override
       public void onClick(View arg0) {
       new AlertDialog.Builder(main.this).setTitle("AlertTest")
       .setMessage("Alert Body").setPositiveButton("Exit"
       ,new DialogInterface.OnClickListener() {
       @Override
       public void onClick(DialogInterface dialog,int which) {
           //要做的事情.....
       }
   }).show();
   }
   });
}

不同的Activity之間資料的傳遞

2010-04-29T08:03:00.000-07:00

//發送端

import andoird.os.Bundle;
....
..
.
public class sendData extends Activity{
   public onCreate(Bundle states) {
   super.onCreate(states);
   setContentView(R.layout.main);
   ......
   ....
   ..
   Intent intent = new Intent();
   intent.setClass(sendData.this, receiveData.class);

   Bundle bundle = new Bundle();
   bundle.putString("Jason","Jason");
   bundle.putDouble("double",9.99d);

   intent.putExtras(bundle);

   startActivity(intent);
   }
}

//接收端

import andoird.os.Bundle;

...

public class receiveData extends Activity{

public onCreate(Bundle states) {

super.onCreate(states);

setContentView(R.layout.main);

......

....

Bundle bundle = this.getIntent().getExtras();

String MyName = bundle.getString("Jason");

double width = bundle.getDouble("double");

}

大陸公民身份號碼驗證規則

2010-01-06T19:42:00.000-08:00

大陸的身份證為18位，舊的身份證是15位。
公民身份號碼是特徵組合碼，由十七位數字和一位數字檢核碼組成。

從左至右依次為：
   1.六位數字地址碼。
   2.八位數字出生日期碼。
   3.三位數字流水號。
   4.一位數字檢核碼。

地址碼：
   第01位到第06位表示編碼對象戶籍所在縣應該是指出生地的行政區代碼。
   這裡可以查到所有的行政區編碼中華人民共和國國家統計局。

生日碼：
   第07位到第14位表示編碼對像出生的年、月、日，當然是用西元年四碼
範例：1978年02月01日就用19780201。

流水號：
   第15位到第17位為同一地址碼內，對同一天出生的人員編定的流水號。
   第17位奇數分給男性，偶數分給女性。跟台灣的身分證字號類似。
   對岸大陸目前的出生率有這麼低嗎??

校驗碼：
   第18位是根據前面十七位數字，計算出來的檢核碼。

   第18位數字的計算方法為：
   1.將前面的身份證號碼17位數分別乘上一組係數。
   係數：7910584216379105842。
   2.將這17位數字和系數相乘的結果加總。
   3.將第二步驟的機總數字除以11取餘數。
   4.餘數級代表核驗碼的Index 核驗碼10,X,9,8,7,6,5,4,3,2。

程式碼：

   public static boolean isPRCId(String cId) {
   boolean isPRCId = false;
   //改為大寫
   cId = cId.toUpperCase();
   //長度檢查
   if (cId.trim().length() != 18) {
   return false;
   }

   //數字檢查
   //前17碼必須為數字
   for (int i = 0; i < cId.length() - 1; i++) {
   char c = cId.charAt(i);
   if (c < '0' || c > '9') {
   return false;
   }
   }

   //生日碼檢核
   if (isACDay(cId.substring(6, 14)) == false) {
   return false;
   }

   //計算係數
   int[] key = {7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2};
   char[] sparate = cId.substring(0, 17).toCharArray();
   int[] value = new int[17];
   for (int i = 0; i < 17; i++) {
   value[i] = Integer.parseInt(String.valueOf(sparate[i]));
   }

   int nValue = 0;
   for (int i = 0; i < 17; i++) {
   nValue = nValue + (key[i] * value[i]);
   }

   int cIdLastValueIndex = 0;
   cIdLastValueIndex = nValue % 11;
   String[] cIdLastValue = {"1", "0", "X", "9", "8", "7", "6", "5", "4", "3", "2"};

   if (cId.substring(17).equals(cIdLastValue[cIdLastValueIndex])) {
   isPRCId = true;
   } else {
   isPRCId = false;
   }
   return isPRCId;
   }

HTC Hero變成無線AP(免刷機)

2009-12-23T22:05:00.000-08:00

先下載兩個檔案
1.Instant Root Instant Root 下載點
2.Wireless Tether wireless tether 下載點

步驟一 : 先裝Instant Root
步驟二 : 再裝Wireless Tether

然後就開啟Wireless Tether來用啦.......
國外網站有說安裝了Instant Root就不要再安裝官方的更新檔,反正到時候hero有釋放Android 2.1時,再把Instant Root移掉就好了!!!!

Instant 移除的方法

You can undo the changes made by this app by installing and opening a terminal emulator (there are several on the market) and typing the following:

su
mount -o remount,rw /dev/block/mtdblock3 /system
rm /system/bin/su
rm /system/xbin/su
rmdir /system/xbin
mount -o remount,ro /dev/block/mtdblock3 /system
exit
exit

後記:
用了大半個月之後突然間Wireless Tether開不起來了......慘.......
所以我最後還是刷機了.....

動態Spinner來變更Image

2009-09-06T23:59:00.000-07:00

所需功能

取得res/drawable資料夾下的所有檔案名稱
由檔案名稱取得ResourceID
點選並顯示圖檔

package java2.tw;

import java.lang.reflect.Field;

import java.util.ArrayList;

import java.util.List;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.ImageView;

import android.widget.Spinner;

import android.widget.Toast;

import android.widget.AdapterView.OnItemSelectedListener;

public class mySpinner extends Activity {

private Spinner mySpinner;

private ImageView myImageView;

private ArrayAdapter myArrayAdapter;

static String[] myResource;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

mySpinner = (Spinner) findViewById(R.id.mySpinner);

myImageView = (ImageView) findViewById(R.id.myImageView);

getResourceName();

myArrayAdapter = new ArrayAdapter(this,

android.R.layout.simple_spinner_item, myResource);

mySpinner.setAdapter(myArrayAdapter);

mySpinner.setOnItemSelectedListener(new OnItemSelectedListener() {

@Override

public void onItemSelected(AdapterView arg0, View arg1,

int arg2, long arg3) {

myImageView.setImageResource(getResourceIDByName(

R.drawable.class, myResource[arg2]));

}

@Override

public void onNothingSelected(AdapterView arg0) {

}

});

}

private void getResourceName() {

String[] resource;

List list = new ArrayList();

for (Field f : R.drawable.class.getDeclaredFields()) {

try {

list.add(f.getName());

} catch (Exception e) {

Toast.makeText(this, "圖片目錄載入失敗", Toast.LENGTH_SHORT).show();

}

resource = new String[list.size()];

for (int i = 0; i <>

resource[i] = list.get(i);

}

myResource = resource;

}

private int getResourceIDByName(Class aClass, String resourceName) {

Field[] drawableFields = aClass.getFields();

int resourceID = 0;

for (Field f : drawableFields) {

if (resourceName.equals(f.getName())) {

try {

resourceID = f.getInt(null);

} catch (IllegalArgumentException e) {

e.printStackTrace();

} catch (IllegalAccessException e) {

e.printStackTrace();

}

return resourceID;

}

在Android程式中取得圖檔方法

2009-09-06T20:02:00.000-07:00

單一圖檔:

方法一:

Field f= (Field)R.drawable.class.getDeclaredField("dsc00002");

int imageID =f.getInt(R.drawable.class);

ImageView imageView= new ImageView(this);

imageView.setImageResource(imageID);

public Field getDeclaredField (String name)

Returns a `Field` object for the field with the specified name which is declared in the class represente by this `Class`.

Parameters

name	the name of the requested field.

Returns

the requested field in the class represented by this class.

方法二:

int imageID =this.getResources().getIdentifier(this.getPackageName()+":drawable/dsc00002", null,null);

//int imageID = this.getResources().getIdentifier("dsc00002", "drawable", this.getPackageName());

ImageView imageview = new ImageView(this);
imageview.setImageResource(imageID);

public int getIdentifier (String name, String defType, String defPackage)

Return a resource identifier for the given resource name. A fully qualified resource name is of the form "package:type/entry". The first two components (package and type) are optional if defType and defPackage, respectively, are specified here.

Note: use of this function is discouraged. It is much more efficient to retrieve resources by identifier than by name.

Parameters

name The name of the desired resource.

defType Optional default resource type to find, if "type/" is not included in the name. Can be null to require an explicit type.

defPackage Optional default package to find, if "package:" is not included in the name. Can be null to require an explicit package.

Returns

int The associated resource identifier. Returns 0 if no such resource was found. (0 is not a valid resource ID.)

name	The name of the desired resource.
defType	Optional default resource type to find, if "type/" is not included in the name. Can be null to require an explicit type.
defPackage	Optional default package to find, if "package:" is not included in the name. Can be null to require an explicit package.

批次圖檔:

public int[] getImageID() {

int[] output;

List list = new ArrayList();

for (Field f : R.drawable.class.getDeclaredFields()) {

try {

Object object = f.get(R.drawable.class);

if (object instanceof Integer) {

list.add((Integer) object);

}

} catch (Exception e) {

Toast.makeText(myContext, "圖片載入失敗", Toast.LENGTH_SHORT).show();

}

output = new int[list.size()];

for (int i = 0; i <>

output[i] = list.get(i).intValue();

}

return output;

}

Linux Date 指令運用

2008-10-22T02:39:00.000-07:00

利用date 指令來取得,格式如下
date "+%Y %m %d %H:%M:%S"

Display the current time in the given FORMAT, or set the system date.

-d, --date=STRING

display time described by STRING, not `now'

FORMAT controls the output:
%Y year (1970...)
%m month (01..12)
%d day of month (01..31)
%H hour (00..23)
%M minute (00..59)
%S second (00..60); the 60 is necessary to accommodate a leap second

當天

date +%Y%m%d

前一天
# date --date='1 days ago' +%Y%m%d
# date -d '1 days ago' +%Y%m%d
# date -d yesterday +%Y%m%d
明天
# date --date='1 days' +%Y%m%d
# date -d '1 days' +%Y%m%d
# date -d tomorrow +%Y%m%d

網路設定備份與啟動

2008-10-19T20:30:00.000-07:00

快速切換IP組態

網路設定檔備份

netsh -C interface dump>C:\Office_AP1.txt

/*****************備份出來的內容_開始*************/

#=========

# 介面設定

#=========

pushd interface

reset all

popd

# 介面設定結束

#=========

# 介面設定

#=========

pushd interface ipv6

uninstall

popd

# 介面設定結束

# ----------------------------------

# ISATAP 設定

# ----------------------------------

pushd interface ipv6 isatap

popd

# ISATAP 設定結束

# ----------------------------------

# 6to4 設定

# ----------------------------------

pushd interface ipv6 6to4

reset

popd

# 6to4 設定結束

#========================

# 連接埠 Proxy 設定

#========================

pushd interface portproxy

reset

popd

# 連接埠 Proxy 設定結束

# ----------------------------------

# 介面 IP 設定

# ----------------------------------

pushd interface ip

# "無線網路連線" 的介面 IP 設定

set address name="無線網路連線" source=static addr=172.16.1.2 mask=255.255.255.0

set address name="無線網路連線" gateway=172.16.1.1 gwmetric=0

set dns name="無線網路連線" source=static addr=168.95.1.1 register=PRIMARY

add dns name="無線網路連線" addr=168.95.192.1 index=2

set wins name="無線網路連線" source=static addr=none

popd

# 介面 IP 設定結束

/*****************備份出來的內容_結束*************/

文字檔載入變更IP組態

netsh -f C:\Office_AP1.txt

這樣就不用每次手工去改IP,不過如果是不同無線基地台的話還是得手動去切換基地台才可以...

JMail 開發紀錄(2-3) - mail.cfg backup 功能新增

2008-10-12T23:08:00.000-07:00

新增郵件備份機制 backup=true/false

當備份機制啟動時,在工作目錄下會新增一個backup資料夾,裡面會有每個帳號(日期分類)的個別備份檔案

例如:

sender_smtp15985.jmail

receiver_pop15986.jmail

兩種類型檔案,其中 sender為寄件者備份 / receiver為收件者備份

JMail 開發紀錄(2-2) - mail.cfg NIC.Check 名稱變更

2008-10-11T21:27:00.000-07:00

#This option rejects mail sent from domains that do not have an entry in DNS.

#Fully qualified domain name check

#Default option=true

原為

NIC.Check=true

現在變更為

FQDN.Check = true

功能無異動只有名稱修改

JMail 開發紀錄(2-1) - mail.cfg BlockDomain功能新增

2008-10-09T11:53:00.000-07:00

新增

#Blocked.Domain

Blocked.domain=gmail.com

這樣只要是由gmail.com或是rv-out-0708.google.com或是xxxxx.gmail.com來的信都會被封鎖

JMail 開發紀錄(4) - 使用外部套件說明

2008-10-09T02:27:00.000-07:00

log紀錄

1.commons-logging-1.1.1.jar

2.commons-logging.jar

3.log4j-1.2.15.jar

4.log4j.jar

2.dns查詢

dnsjava-2.0.6.jar

這個套件要是檢查NIC與RBL與XBL所必須使用的,因為要反查IP.....

Java2Tw

SDK 升級到 android-12 模擬器出問題

SQLite query in android application

getWritableDatabase()

getReadableDatabase()

public Cursor query (boolean distinct, String table, String[] columns, String selection, String[] selectionArgs, String groupBy, String having, String orderBy, String limit)

Parameters

Returns

Activity & Service 生命週期表

慢跑的新鞋子

停車位

狗熊迷路了...

我的英雄變狗熊了

變更Eclipse workspace的路徑

SQL Console

哪裡有車位

Android 多國語系開發方式

燃燒吧,脂肪!!!

打電話

AlertDialog 使用

不同的Activity之間資料的傳遞

大陸公民身份號碼驗證規則

HTC Hero變成無線AP(免刷機)

動態Spinner來變更Image

在Android程式中取得圖檔方法

public Field getDeclaredField (String name)

Returns a Field object for the field with the specified name which is declared in the class represente by this Class.

Parameters

Returns

public int getIdentifier (String name, String defType, String defPackage)

Parameters

Returns

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Returns a `Field` object for the field with the specified name which is declared in the class represente by this `Class`.