iPhone Application Development Guide

How to Disable Application Transport Security

2016-01-23T21:27:00.001-08:00

You just have to add NSAllowsArbitraryLoads boolean YES in 

NSAppTransportSecurity dictionary

How to use Protocol Delegate in iOS using Swift language

2015-11-09T00:28:00.000-08:00

Define Protocol

There are two controllers:
FirstViewController
SecondViewController

I need to notify FirstViewController that SecondViewController ViewDidAppearCalled

import UIKit

//Define Your protocole here after Import

protocol SecondViewControllerDelegate{

    //Add a new function

    func SecondViewDidLoadFinished(controller:SecondViewController)

}

class SecondViewController: UIViewController {

    var delegate:SecondViewControllerDelegate?

    override func viewDidLoad() {

        super.viewDidLoad()

}

override func viewDidAppear(animated: Bool) {

        if let delegate = self.delegate{

            delegate.SecondViewDidLoadFinished(self)

}

}

First view

import UIKit

class FirstViewController: UIViewController,SecondViewControllerDelegate {

    override func viewDidLoad() {

        super.viewDidLoad()

}

@IBAction func buttonTapped(sender:UIButton){

        let mapObject:SecondViewController = SecondViewController()

        mapObject.delegate = self

        self.navigationController?.pushViewController(mapObject, animated: true)   

}

func SecondViewDidLoadFinished(controller: SecondViewController) {

//Here you will be notified that second view viewDid appear loaded

}

iOS 9 issue: The app could not be loaded because the app transport security policy requires the use of secure connection.

2015-10-21T23:26:00.002-07:00

I have solved it with adding some key in info.plist. The steps I followed are:

Opened my Projects info.plist file

Added a Key called NSAppTransportSecurity as a Dictionary.

Added a Subkey called NSAllowsArbitraryLoads as Boolean and set its value to YES as like following image.

Ref Link: app-transport-security-policy

iOS Generate Random string

2015-09-29T00:42:00.000-07:00

+(NSString *) generateRandomString

{

    NSString *letters = @"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";

    int len = 8;

    NSMutableString *randomString = [NSMutableString stringWithCapacity: len];

    for (int i=0; i<len; i++) {

        [randomString appendFormat: @"%C", [letters characterAtIndex: arc4random_uniform([letters length])]];

}

    return randomString;

}

Get iPhone application for portfolio or profile

2015-09-29T00:37:00.000-07:00

Get iPhone application for your professional profile

Check my iPhone application below :

Easy to install just Click on below link and there will be install button tap on it finish !
Easy to share with your colleague or clients anyone
No apple account required
Very Cheaper than you imagine

https://dl.dropbox.com/s/uc06ufl215bhwlx/index.html

If you want this application for your profile so contact:
a.kareem.tn@gmail.com

iOS NSDate -- All type of conversions Class Methods

2015-09-29T00:17:00.002-07:00

//Get the current Device Date

+(NSDate *)getcurrentDate

{

    NSDate *CurrentDate = [NSDate date];

    NSDateFormatter *Formatter=[[NSDateFormatter alloc] init];

    NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];

    [Formatter setLocale:locale];

    [Formatter setDateFormat:@"yyyy-MM-dd h:mm a"];

    return CurrentDate;

}

//Get Month Year in String Format  From  Date

+(NSString *)getStringMonthYearFromDate :(NSDate *)givendate

{

    NSCalendar *dateCalender = [NSCalendar currentCalendar];

    NSDateFormatter *Formatter=[[NSDateFormatter alloc] init];

    NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];

    [Formatter setLocale:locale];

    [Formatter setDateFormat:@"MMMM-y"];

    NSString *FormattedDate = [Formatter stringFromDate:givendate];

    return FormattedDate;

}

+(NSDate *)getcurrentMonthYear

{

    NSDate *CurrentDate = [NSDate date];

    NSCalendar *dateCalender = [NSCalendar currentCalendar];

    NSDateFormatter *Formatter=[[NSDateFormatter alloc] init];

    NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];

    [Formatter setLocale:locale];

    [Formatter setDateFormat:@"MMMM y HH"];

    NSString *FormattedDate=[Formatter stringFromDate:CurrentDate];

    NSDate *actualDate =[Formatter dateFromString:FormattedDate];

    NSDateComponents *components = [dateCalender components: NSCalendarUnitDay | NSCalendarUnitMonth | NSCalendarUnitYear |NSCalendarUnitHour fromDate:actualDate];

    [components setCalendar:dateCalender];

    [components setDay:1];

    [components setHour:4];

    actualDate = [dateCalender dateFromComponents:components];

    return actualDate;

}

+(NSDate *)getcurrentDateOnly

{

    NSDate *CurrentDate = [NSDate date];

    NSDateFormatter *Formatter=[[NSDateFormatter alloc] init];

    NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];

    [Formatter setLocale:locale];

    [Formatter setDateFormat:@"dd-MMM-yyyy"];

    NSString *FormattedDate=[Formatter stringFromDate:CurrentDate];

    return [Formatter dateFromString:FormattedDate];

}

+(NSString *)getcurrentDateInString

{

    NSDate *CurrentDate = [NSDate date];

    NSDateFormatter *Formatter=[[NSDateFormatter alloc] init];

    NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];

    [Formatter setLocale:locale];

    [Formatter setDateFormat:@"dd-MMM-yyyy HH:mm a"];

    NSString *FormattedDate=[Formatter stringFromDate:CurrentDate];

    return FormattedDate;

}

+(NSDate *)getcurrentTime

{

    NSDate *CurrentDate = [NSDate date];

    NSDateFormatter *Formatter=[[NSDateFormatter alloc] init];

    NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];

    [Formatter setLocale:locale];

    [Formatter setDateFormat:@"h:mm a"];

    return CurrentDate;

}

+(NSDate *)convertStringDateToNSDate :(NSString *)dateString

{

    NSCalendar *currentCalender =[NSCalendar currentCalendar];

    NSDateFormatter *stringToDateFormater =[[NSDateFormatter alloc] init];

    NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];

    [stringToDateFormater setLocale:locale];

    [stringToDateFormater setDateFormat:@"dd MMMM y"];

    NSDate *fulldate = [stringToDateFormater dateFromString:dateString];

    NSDateComponents *components = [currentCalender components: NSCalendarUnitDay | NSCalendarUnitMonth | NSCalendarUnitYear |NSCalendarUnitHour fromDate:fulldate];

    NSCalendar *dateCalender = [NSCalendar currentCalendar];

    [components setCalendar:dateCalender];

    [components setDay:1];

    [components setHour:4];

    fulldate = [dateCalender dateFromComponents:components];

    return fulldate;

}

+(NSDate *)convertStringTimeToDate :(NSString *)time

{

    NSDate *CurrentDate = [NSDate date];

    NSCalendar *currentCalender =[NSCalendar currentCalendar];

    NSDateComponents *components = [currentCalender components:NSCalendarUnitDay | NSCalendarUnitMonth | NSCalendarUnitYear | NSCalendarUnitHour | NSCalendarUnitMinute fromDate:CurrentDate];

    NSDateFormatter *stringToDateFormater =[[NSDateFormatter alloc] init];

    NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];

    [stringToDateFormater setLocale:locale];

    [stringToDateFormater setDateFormat:@"h:mm a"];

    NSDate *date = [stringToDateFormater dateFromString:time];

    NSCalendar *dateCalender =[NSCalendar currentCalendar];

    NSDateComponents *datecomponents = [dateCalender components:NSCalendarUnitDay | NSCalendarUnitMonth | NSCalendarUnitYear | NSCalendarUnitHour | NSCalendarUnitMinute fromDate:date];

    [datecomponents setDay:components.day];

    [datecomponents setMonth:components.month];

    [datecomponents setYear:components.year];

    date = [dateCalender dateFromComponents:datecomponents];

    return date;

}

+(NSString *)convertTimeToString :(NSDate *)time

{

    NSDate *CurrentDate = time;

    NSDateFormatter *Formatter=[[NSDateFormatter alloc] init];

    NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];

    [Formatter setLocale:locale];

    [Formatter setDateFormat:@"h:mm a"];

    NSString *timeString=[Formatter stringFromDate:CurrentDate];

    return timeString;

}

+(NSString *)convertDateToString :(NSDate *)date

{

    NSDate *CurrentDate = date;

    NSDateFormatter *Formatter=[[NSDateFormatter alloc] init];

    NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];

    [Formatter setLocale:locale];

    [Formatter setDateFormat:@"MMM"];

    NSString *timeString=[Formatter stringFromDate:CurrentDate];

    return timeString;

}

+(NSString *)getcurrentTimeInString

{

    NSDate *CurrentDate = [NSDate date];

    NSDateFormatter *Formatter=[[NSDateFormatter alloc] init];

    NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];

    [Formatter setLocale:locale];

    [Formatter setDateFormat:@"h:mm a"];

    NSString *timeString=[Formatter stringFromDate:CurrentDate];

    return timeString;

}

+(NSString *)convertMinutesToTimeInterval :(NSUInteger)minutes

{

    NSTimeInterval timeInterval =minutes*60;

    NSDateComponentsFormatter *componentFormatter = [[NSDateComponentsFormatter alloc] init];

    componentFormatter.unitsStyle = NSDateComponentsFormatterUnitsStyleShort;

    componentFormatter.zeroFormattingBehavior = NSDateComponentsFormatterZeroFormattingBehaviorDropAll;

    NSString *formattedString = [componentFormatter stringFromTimeInterval:timeInterval];

    return formattedString;

}

+(NSString *)convertMinutesToTimeIntervalNumericWay :(NSUInteger)minutes

{

    NSTimeInterval timeInterval =minutes*60;

    NSDateComponentsFormatter *componentFormatter = [[NSDateComponentsFormatter alloc] init];

    componentFormatter.unitsStyle = NSDateComponentsFormatterUnitsStylePositional;

    componentFormatter.zeroFormattingBehavior = NSDateComponentsFormatterZeroFormattingBehaviorDropAll;

    NSString *formattedString = [componentFormatter stringFromTimeInterval:timeInterval];

    return formattedString;

}

Side Bar Menu using xib for English and Arabic Languages

2015-01-17T21:40:00.000-08:00

In this sample i made sidebar menu for English and Arabic languages

Please Download from below link:
https://github.com/AbdulKareemios/Sidebar-Menu-iOS.git

iOS Phone No Validation

2014-11-20T06:58:00.001-08:00

-(BOOL)checkValidation :(NSString *)phoneNo

{

    NSString *phoneRegex = @"((971)\\d{9})";

    NSPredicate *phoneTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", phoneRegex];

    BOOL phoneValidates = [phoneTest evaluateWithObject:phoneNo];

    return phoneValidates;

}

Youtube Embeded not playing in landscape mode in iOS6 and above

2014-07-24T04:06:00.000-07:00

Just Copy and paste below code in your AppDelegate

- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {

    id presentedViewController = [window.rootViewController presentedViewController];

    NSString *className = presentedViewController ? NSStringFromClass([presentedViewController class]) : nil;

    if (window && [className isEqualToString:@"MPInlineVideoFullscreenViewController"]) {

        return UIInterfaceOrientationMaskAll;

    } else {

        return UIInterfaceOrientationMaskPortrait;

}

}

Play Youtube video in webview with HTML

2014-07-12T07:31:00.000-07:00

Copy and Paste below code and load in your webview:

NSURL *myURL =[NSURL URLWithString:@"http://www.youtube.com/v/zah99ETVOz4"];

NSString *embedHTML = @"<html><head><meta name = \"viewport\" content = \"initial-scale = 1.0, user-scalable = no, width = 212\"/></head><body style=\"background:#F00;margin-top:0px;margin-left:0px\"><div><object width=\"212\" height=\"172\"><param name=\"movie\" value=\"%@\"></param><param name=\"wmode\" value=\"transparent\"></param><embed src=\"%@\"type=\"application/x-shockwave-flash\" wmode=\"transparent\" width=\"320\" height=\"270\"></embed></object></div></body></html>";

NSString *html = [NSString stringWithFormat:embedHTML, myURL,myURL,myURL];

[YourWebView loadHTMLString:html baseURL:nil];

Dowbload Project from Here

Add Event into iphone Calendar

2014-06-30T01:32:00.001-07:00

//Add Event kit framework

EventKit.framework

//import

#import <EventKit/EventKit.h>

//Copy below code and enjoy

-(IBAction)AddEvent:(id)sender

{

    NSString *dateString = @"Jul 09,2014 00:00";

    //Create a formater

    NSDateFormatter *formater =[[NSDateFormatter alloc] init];

    [formater setDateFormat:@"MMM dd,yyyy HH:mm"];

    NSDate *startDate =[formater dateFromString:dateString];

    NSLog(@"current date %@",[NSDate date]);

    EKEventStore *store = [[EKEventStore alloc] init];

    [store requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) {

        if (!granted) { return; }

        EKEvent *event = [EKEvent eventWithEventStore:store];

        event.title = @"My Birthday";

        event.startDate = startDate;//[NSDate date]; //today

        event.endDate = [event.startDate dateByAddingTimeInterval:60*60];  //set 1 hour meeting

        [event setCalendar:[store defaultCalendarForNewEvents]];

        NSError *err = nil;

        [store saveEvent:event span:EKSpanThisEvent commit:YES error:&err];

        NSString *savedEventId = event.eventIdentifier;  //this is so you can access this event later

}];

}

Convert mp3 to caf format

2014-06-06T11:07:00.000-07:00

Open terminal and go to the folder where your mp3 file is placed then write below command and enter

afconvert -f caff -d LEI16@44100 song.mp3 song.caf

Thats all

Download Manager for iOS

2014-06-05T13:18:00.001-07:00

Small effort by ideamakerz.
This download manager uses the iOS 7 NSURLSession api to download files.

Can download files if app is in background.
Can download multiple files at a time.
It can resume interrupted downloads.
User can also pause the download.
User can retry any download if any error occurred during download.

You can download this amazing tool for your development from here.

Install in your device from here.

How to right function in swift language

2014-06-03T03:22:00.000-07:00

func whatsYourStatus (age:Int, name:String) ->(String)
{
var answer=""

if(age < 0)
{
answer = "you need to born first!"
}
else if(age < 13)
{
answer = "you are not ready for programing"
}
else if(age >= 13 && age <= 19)
{
answer = "you can start programing"
}
else if(age > 19 && age <= 25)
{
answer = "you are an expert of Objective-C"
}
else if(age > 25 && age <= 30)
{
answer = "you are not ready for swift"
}
else if(age > 30 && age <= 35)
{
answer = "you are an expert of swift"
}
else if(age > 35)
{
answer="you are retired , have time with your family"
}
return "\(name) \(answer)"
}

whatsYourStatus(45, "Kareem")

SQLite DB Integration in iOS -- Basic Tutorial ,(In Process ....)

2014-05-14T10:17:00.002-07:00

This Post is in under Development, it will be final soon....................

This post is the basic SQLite integration in iOS project for newcomers, if you are experienced developer then it will not be helpful for you :

To create database and manage tables you can add SQLite Manager Add-Ons in Firefox please follow the below guideline:

SQLite Manager Firfox Add-ons

Open SQLite Manager from Firefox:

Creating new Database:

Creating a Table :

Optional:

For SQLite DB this tool is also very helpful, if you wish to use just open sqlite file with Navicate:

Navicat Sqlite Manager

Drag your SQLite database file into your project:

Make sure create group for any added folder is selected and add to target your project as show in belowimage.

Copy Database into Document Directory:

You can call this method in didFinishLaunchingWithOptions in Appdelegate.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{

self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

// Override point for customization after application launch.

//Copy Database into Document Directory

[self copyDB];

}

-(void)copyDB

{

//sample is the name of your database

NSString *str = [[NSBundle mainBundle]pathForResource:@"sample" ofType:@"sqlite"];

NSString *docpath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];

NSString *destPaht = [docpath stringByAppendingPathComponent:@"sample.sqlite"];

NSLog(@"databse path %@",destPaht);

NSFileManager *mgr = [NSFileManager defaultManager];

if (![mgr fileExistsAtPath:destPaht])

{

[mgr copyItemAtPath:str toPath:destPaht error:nil];

}

//Below is class method for Select Query to get all records from table:

+(NSMutableArray *)GetAllRecords

{

NSMutableArray *finalempArr =[NSMutableArray array];

sqlite3 *database;

if (sqlite3_open([Database_Path UTF8String], &database) == SQLITE_OK)

{

NSString *selectSql;

selectSql = [NSString stringWithFormat:@"SELECT * FROM records"];

sqlite3_stmt *statement;

if (sqlite3_prepare_v2(database, [selectSql cStringUsingEncoding:NSUTF8StringEncoding], -1, &statement, NULL) == SQLITE_OK)

{

while (sqlite3_step(statement) == SQLITE_ROW)

{

NSMutableDictionary *empDic =[NSMutableDictionary dictionary];

//here we get all column entries from table

NSString *emp_id = [NSString stringWithUTF8String:(char *)sqlite3_column_text(statement,0)];

NSString *emp_name = [NSString stringWithUTF8String:(char *)sqlite3_column_text(statement,1)];

NSString *emp_age = [NSString stringWithUTF8String:(char *)sqlite3_column_text(statement,2)];

NSString *emp_address = [NSString stringWithUTF8String:(char *)sqlite3_column_text(statement,3)];

NSString *emp_cell = [NSString stringWithUTF8String:(char *)sqlite3_column_text(statement,4)];

//adding entries in dictionary optioanl

[empDic setValue:emp_id forKey:@"id"];

[empDic setValue:emp_name forKey:@"name"];

[empDic setValue:emp_age forKey:@"age"];

[empDic setValue:emp_address forKey:@"address"];

[empDic setValue:emp_cell forKey:@"cell"];

[finalempArr addObject:empDic];

empDic=nil;

}

sqlite3_finalize(statement);

}

else

{

NSLog(@"Error");

}

sqlite3_close(database);

database=nil;

}

else

{

NSLog(@"Database cant open");

}

return finalempArr;

}

You can call above method like this:

[DatabaseClass GetAllRecords];

You can download Sample SQLite Integration Code from here.

iPhone Screenshot Programatically

2014-04-16T11:16:00.001-07:00

Below is the method to take screenshot :

- (UIImage *) screenshot

{

UIGraphicsBeginImageContextWithOptions(self.view.bounds.size, NO, [UIScreen mainScreen].scale);

[self.view drawViewHierarchyInRect:self.view.bounds afterScreenUpdates:YES];

UIImage *image = UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

return image;

}

How to use NSArray in Macro

2014-04-12T05:21:00.000-07:00

Here is the solution to define array in macro

#define Alphabats @[@"A",@"B",@"C",@"D",@"E",@"F",@"G",@"H",@"I",@"J",@"K",@"L",@"M",@"N",@"O",@"P",@"Q",@"R",@"S",@"T",@"U",@"V",@"W",@"X",@"Y",@"Z"]

How to access this array in your code :

NSMutableArray *charArray =[NSMutableArray arrayWithArray:Alphabats];

Check Date Format in iPhone

2014-04-10T06:56:00.002-07:00

This method is useful to check which date formate is selected in iphone etither 24 hours or 12 hours

NSDateFormatter *formatter = [[NSDateFormatter alloc] init];

[formatter setLocale:[NSLocale currentLocale]];

[formatter setDateStyle:NSDateFormatterNoStyle];

[formatter setTimeStyle:NSDateFormatterShortStyle];

NSString *dateString = [formatter stringFromDate:[NSDate date]];

NSRange amRange = [dateString rangeOfString:[formatter AMSymbol]];

NSRange pmRange = [dateString rangeOfString:[formatter PMSymbol]];

Bool HourFormate24 = (amRange.location == NSNotFound && pmRange.location == NSNotFound);

UIKeyboard notifications Show & Hide - iPhone SDK

2014-04-09T06:23:00.001-07:00

This post will help you integrate keyboard Notifications to handle the show and hide functionality

Below are two observer which keep listening keyboard actions . You can keep this two observer in viewdidload

OBSERVERS:

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardDidShowNotification object:nil];

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardDidHideNotification object:nil];

These are two delegate methods and these will be trigered on keyboard actions.

DELEGATE METHODS:

- (void)keyboardWillShow:(NSNotification*)notification

{

}

-(void)keyboardWillHide: (NSNotification*)notification

{

}

Check Email validation

2014-04-08T05:05:00.002-07:00

- (BOOL)validateEmailWithString:(NSString*)email

{

    NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";

    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];

    return [emailTest evaluateWithObject:email];

}

ASIFormDataRequest UPLOAD IMAGE TO THE SERVER

2014-04-08T04:30:00.000-07:00

NSMutableDictionary *dic=[NSMutableDictionary dictionary];

[dic setValue:@"Abdul Kareem" forKeyPath:@"user_name"];

[dic setValue:@"signup" forKeyPath:@"action"];

[dic setValue:@"a.kareem.tn@gmail.com" forKeyPath:@"email"];

[dic setValue:@"abc" forKeyPath:@"password"];

[dic setValue:@"28" forKeyPath:@"age"];

[dic setValue:@"Male" forKeyPath:@"gender"];

[dic setValue:@"80" forKeyPath:@"weight"];

[dic setValue:@"6" forKeyPath:@"height"];

NSString *jsonRequest = [dic JSONRepresentation];

jsonRequest =[jsonRequest stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"%@%@",SERVIEC_URL,jsonRequest]];

ASIFormDataRequest *request =[ASIFormDataRequest requestWithURL:url];

[request setRequestMethod:@"POST"];

[request addRequestHeader:@"User-Agent" value:@"ASIHTTPRequest"];

[request addRequestHeader:@"Content-Type" value:@"application/json"];

//[request appendPostData:[jsonRequest dataUsingEncoding:NSUTF8StringEncoding]];

if (imageData != nil) { ///for image data

[request setData:imageData withFileName:@"image.jpg" andContentType:@"image/jpeg" forKey:@"picture"];

}

[request setDelegate:self];

[request setShowAccurateProgress:YES];

[request setUsername:"user name if you have on webservice"];

[request setPassword:"password if you have on webservice"];

[request startAsynchronous];

SIMPLE PROTOCOL & DELEGATE EXAMPLE

2014-03-27T00:46:00.002-07:00

PROTOCOL & DELEGATE

two controllers

FirstViewController

SecondViewController

SecondViewController.h

@protocol SecondViewControllerDelegate;

@property (nonatomic, weak) id<SecondViewControllerDelegate> delegate;

@protocol SecondViewControllerDelegate <NSObject>

- (void)SecondViewController:(SecondViewController*)viewController

didChooseValue:(CGFloat)value;

SecondViewController.m

-(IBAction)SecondTap:(id)sender

{

id<SecondViewControllerDelegate> strongDelegate = self.delegate;

// Our delegate method is optional, so we should

// check that the delegate implements it

if ([strongDelegate respondsToSelector:@selector(SecondViewController:didChooseValue:)]) {

[strongDelegate SecondViewController:self didChooseValue:[sender tag]];

}

FirstViewController.h

@interface FirstViewController : UIViewController<SecondViewControllerDelegate>

FirstViewController.m

-(IBAction)Add:(id)sender

{

SecondViewController *objsecond =[[SecondViewController alloc]init];

[objsecond setDelegate:self];

[self.view addSubview:objsecond.view];

}

- (void)SecondViewController:(SecondViewController *)viewController didChooseValue:(CGFloat)value

{

// Do something with value...

// ...then dismiss the child view controller

[viewController.view removeFromSuperview];

}

Generate PEM certificate from P12 certificate

2014-03-18T03:40:00.000-07:00

Open terminal and go to the path where you place p12 certificate and run this complete below command:

openssl pkcs12 -in certificateName.p12 -out certificateName.pem -nodes

iOS Timer Counter !!

2014-03-18T03:13:00.001-07:00

Here is the Timer counter simple example in which we will get seconds, minutes, and hours

Call the below method TimerCounter:

int secondsSpent;

NSTimer *timer= [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(TimeCounter) userInfo:nil repeats:YES];

- (void)TimeCounter

{

    secondsSpent ++ ;

    hours = secondsSpent / 3600;

    minutes = (secondsSpent % 3600) / 60;

    seconds = (secondsSpent %3600) % 60;

    NSLog(@"Time spent: %02d:%02d:%02d", hours, minutes, seconds);

}

iOS Local Notifications

2014-03-18T03:04:00.001-07:00

Here we have sample code for local notification

    UILocalNotification *notification = [[UILocalNotification alloc] init];

    notification.alertBody =@"Test Message";

    notification.soundName = UILocalNotificationDefaultSoundName;

    [[UIApplication sharedApplication] presentLocalNotificationNow:notification];