AVAudioPlayer setVolume-如何？

Question

Does anyone know the best way to mute game sounds on my app.

I am currently using SystemSoundID which I know cannot have the volume adjusted and need to move to AVAudioPlayer.

Ideally I need a settings page where the volume can be changed and the volume level saved so when coming back out or leaving and re-opening the app it remembers to volume level?

I have tried it various ways using AVAudioPlayer but had no success at present and am receiving some bad reviews for my app for people saying they hate that they cant control the game volume... HELP!!

Answer 1

for AVAudioPlayer you can use this code to mute volume

in .h file

@interface ViewController : UIViewController
{
    BOOL muted;
}

and in .m file

- (void)viewDidLoad
{
    [super viewDidLoad];
    muted = NO;
}

- (IBAction)speakerOnOff:(id)sender
{

    if (muted) {
        muted = NO;
        [player setVolume:1.0];
    } else {
        muted = YES;
        [player setVolume:0.0];
    }
}

this code is from this great answer.