Question

I need to know if the App run for the first time to setup the Default settings something like music on/off Fx Volume equal to 0.5 …

So is there any predefined way or I need to make it manually?

Answer 1

You can put this in your - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions:

if (![[NSUserDefaults standardUserDefaults] boolForKey:@"applicationRunBefore"]) {
    [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"applicationRunBefore"];
    [[NSUserDefaults standardUserDefaults] synchronize];
    // Application is running for the first time - do something
    ...
}

Hope that this helps…