Problem with playing a sound when a button is clicked.

Question

in my code:

#import "MyViewController.h"
#import "AVFoundation/AVAudioPlayer.h"


- (IBAction)playSound{
    AVAudioPlayer *myExampleSound;

    NSString *myExamplePath = [[NSBundle mainBundle] pathForResource:@"myaudiofile" ofType:@"caf"];

    myExampleSound =[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:myExamplePath] error:NULL];

    myExampleSound.delegate = self;

    [myExampleSound play];

}

But it is showing a warning that Class MyViewController does not implement AVAudioplayerDelegate.

Anyone please help. I had included the AVFoundation.Framework.

Answer 1

That warning should not affect the actual function of the code.

If you want to suppress the warning, in the header of your view controller do this:

@interface MyViewController : UIViewController <AVAudioPlayerDelegate> {

This lets the compiler know that your class does respond to the AVAudioPlayerDelegate (even though all the methods in that protocol are optional). See here.