Delay background music from starting - ios

Question

I am working my through an app and adding features that I would like but running in to a few issues as I go along.
I was hoping someone would have an answer to this question.
I want some background music on my app and I have achieved this by using this code in my AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
NSString* resourcePath = [[NSBundle mainBundle] resourcePath];
resourcePath = [resourcePath stringByAppendingString:#"/smb1-1.mp3"];
NSLog(#"Path to play: %#", resourcePath);
NSError* err;
//Initialize our player pointing to the path to our resource
player = [[AVAudioPlayer alloc] initWithContentsOfURL:
[NSURL fileURLWithPath:resourcePath] error:&err];
if( err ){
//bail!
NSLog(#"Failed with reason: %#", [err localizedDescription]);
}
else{
//set our delegate and begin playback
player.delegate = self;
[player play];
player.numberOfLoops = -1;
player.currentTime = 0;
player.volume = 0.5;
}
// Override point for customization after application launch.
return YES;
}
So all is good. However what I would like is for the audio to start playing 3 seconds after the app has finished launching and not straight away.
Does anyone know how I can set a delay on this or maybe explain a different way. I don't there to be a delay before every time the music repairs, just for the first initial launch.
Thanks in advance.

Answer 1

Hope this help:
Create an BOOL iVar in your appDelegate:
#implementation aaaAppDelegate
{
BOOL firstTime;
}
Add this to your didFinishLaunchingWithOptions method:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
firstTime = YES;
return YES;
}
Add this to your applicationDidBecomeActive method in the appDelegate.
- (void)applicationDidBecomeActive:(UIApplication *)application
{
if (firstTime)
{
firstTime = NO;
[self performSelector:#selector(playMusic) withObject:nil afterDelay:3.0];
}
}
Move your music playing code from didFinishLaunchingWithOptions to a separate method called playMusic:
-(void)playMusic
{
NSString* resourcePath = [[NSBundle mainBundle] resourcePath];
resourcePath = [resourcePath stringByAppendingString:#"/smb1-1.mp3"];
NSLog(#"Path to play: %#", resourcePath);
NSError* err;
//Initialize our player pointing to the path to our resource
player = [[AVAudioPlayer alloc] initWithContentsOfURL:
[NSURL fileURLWithPath:resourcePath] error:&err];
if( err ){
//bail!
NSLog(#"Failed with reason: %#", [err localizedDescription]);
}
else{
//set our delegate and begin playback
player.delegate = self;
[player play];
player.numberOfLoops = -1;
player.currentTime = 0;
player.volume = 0.5;
}
}