Question

How to make a play/Pause button with the same piece of code.

- (IBAction)min:(id)sender 
{
  NSString *path = [[NSBundle mainBundle] pathForResource:@"1min" ofType:@"mp3"];
  AVAudioPlayer *theAudio = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL];
                  theAudio.delegate = self;
                  theAudio.numberOfLoops = -1;
                  [theAudio play];
                  [[NSUserDefaults standardUserDefaults] setObject:@"-" forKey:@"music"]; 
}

How can I resume by the same button?

Answer 1

Use this to identify button state:

In .h file make theAudio declaration :

AVAudioPlayer *theAudio;

In your method :

UIButton *button = (UIButton *)sender;

button.selected = !button.selected;

if(button.selected)
{
   // Play
   NSString *path = [[NSBundle mainBundle] pathForResource:@"1min" ofType:@"mp3"];
   theAudio = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL];
   theAudio.delegate = self;
   theAudio.numberOfLoops = -1;
   [theAudio play];
   [[NSUserDefaults standardUserDefaults] setObject:@"-" forKey:@"music"];
}
else
{
  // Pause
  [theAudio pause];
}