MobCom

(BOOL)application:(UIApplication )application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; self.window.backgroundColor = [UIColor whiteColor]; ............. ............. ............. UIViewController *rootCtr = [[UIViewController alloc] init]; UINavigationController* nav = [[UINavigationController alloc]...

what is its sdk version? if it was over than 23, you must request permission