IOS monitoring whether the application is enabled for the first time & amp; monitoring whether the application has been updated

Whether the iOS monitoring application is enabled for the first time & amp; whether the application has been updated

Solution: Add the following content to didfinishlaunchingwitexceptions in AppDelegate. h:

 

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{    // Override point for customization after application launch.    NSLog(@did Finish Launching With Options);        if ([[NSUserDefaults standardUserDefaults] boolForKey:@isFirstLaunched]){        NSLog(@AppDelegate - didFinishLaunchingWithOptions: App was already launched.);    }    else{        NSLog(@AppDelegate - didFinishLaunchingWithOptions: App's first launch.);                [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@isFirstLaunched];        [[NSUserDefaults standardUserDefaults] synchronize];    }        if ([[[NSUserDefaults standardUserDefaults] stringForKey:@clientVersion] isEqualToString:CLIENT_VERSION]) {        NSLog(@AppDelegate - didFinishLaunchingWithOptions: App version remains the same.);    }    else{        NSLog(@AppDelegate - didFinishLaunchingWithOptions: App version did update.);        [[NSUserDefaults standardUserDefaults] setObject:CLIENT_VERSION forKey:@clientVersion];        [[NSUserDefaults standardUserDefaults] synchronize];    }        return YES;}

 

 

Define CLIENT_VERSION in App-Prefix.pch:

 

    #define CLIENT_VERSION [[[NSBundle mainBundle] infoDictionary] objectForKey:@CFBundleShortVersionString]