Detect first time app launch in iOS

Here we can simply  add the if else condition using NSUserDefualts...

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

    

{

        if ([[NSUserDefaults standardUserDefaults] boolForKey:@"HasLaunchedOnce"])

        {

            // app already launched

        }

        else

        {

            [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"HasLaunchedOnce"];

            [[NSUserDefaults standardUserDefaults] synchronize];

            // This is the first launch ever

        }

}

    

or else if we want launch count then we can use instead of above follow the below code

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

{

    // Override point for customization after application launch.

    

    NSUserDefaults *theDefaults;

    int  launchCount;

    //Set up the properties for the integer and default.

    theDefaults = [NSUserDefaults standardUserDefaults];

    launchCount = [theDefaults integerForKey:@"hasRun"] + 1;

    [theDefaults setInteger:launchCount forKey:@"hasRun"];

    [theDefaults synchronize];

    

    //Log the amount of times the application has been run

    NSLog(@"This application has been run %d amount of times", launchCount);

    

    //Test if application is the first time running

    if(launchCount == 1)

    {

        //Run your first launch code (Bring user to info/setup screen, etc.)

        NSLog(@"This is the first time this application has been run %d ====",launchCount);

        UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:

                                  @"Title" message:[NSString stringWithFormat:@"%d",launchCount]  delegate:self

                                                 cancelButtonTitle:@"Cancel" otherButtonTitles:@"Ok", nil];

        [alertView show];

        

    }

              

              //Test if it has been run before

              if(launchCount >= 2)

              {

                  //Run new code if they have opened the app before (Bring user to home screen etc.

                  NSLog(@"This application has been run before==== %d ",launchCount);

                  UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:

                                            @"Title" message:[NSString stringWithFormat:@"%d",launchCount]  delegate:self

                                                           cancelButtonTitle:@"Cancel" otherButtonTitles:@"Ok", nil];

                  [alertView show];

                }

    

                  

    return YES;

}