How do you add a Mute Button/Volume Sliding when using AVAUDIOPLAYER...

[rrichar]

How do you add a Mute Button/Volume Slider when using AVAUDIOPLAYER... I have an app with 20 sound buttons across four tabs. I need to add a volume slider for each tab or a mute button for each tab. I also wanted to know if there is a way to set how loud a sound button can be. For Example if I have the following Button:

-(IBAction) Sound:(id)sender{
	
	NSString *path = [[NSBundle mainBundle] pathForResource:@"Sound" ofType:@"wav"];
	AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL];
	
	theAudio.delegate=self;
	[theAudio play];
}

And I want this sound button to play at the half the volume compare to other audio buttons what do I do ?

[Duncan C]

Originally Posted by rrichar

How do you add a Mute Button/Volume Slider when using AVAUDIOPLAYER... I have an app with 20 sound buttons across four tabs. I need to add a volume slider for each tab or a mute button for each tab. I also wanted to know if there is a way to set how loud a sound button can be. For Example if I have the following Button:

-(IBAction) Sound:(id)sender{
	
	NSString *path = [[NSBundle mainBundle] pathForResource:@"Sound" ofType:@"wav"];
	AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL];
	
	theAudio.delegate=self;
	[theAudio play];
}

And I want this sound button to play at the half the volume compare to other audio buttons what do I do ?

The docs say that AVAudioPlayer has a volume property. It doesn't say if it allows you to change the volume while a sound is playing or not, but I think it probably does.

You need to create a slider in IB, and connect to an action with for the UIControlEventValueChanged event. In that action method, get the value of the slider and set the volume property of your audio player.

[dany_dev]

should be just

theAudio.volume = 0.5; // 0.0 mute; 1.0 max volume

[rrichar]

Originally Posted by dany_dev

should be just

I have serveral buttons that play sound and execute other code. If I want to add a mute button must I create a IABACTION and then add theAudio.volume = 0; for every button.

[Duncan C]

Originally Posted by rrichar

I have serveral buttons that play sound and execute other code. If I want to add a mute button must I create a IABACTION and then add theAudio.volume = 0; for every button.

Create a single IBAction and connect all your mute buttons to the same action.

If each mute button is supposed to mute a different sound, but tags on the buttons, and have the action get the tag value and use that to figure out which sound to mute.

(Make your action look like this:

- (IBAction) muteButtonAction: (id) sender;
{
  int button_tag;
  button_tag = [sender tag];
  //Figure out which sound to mute based on the tag
}

[cipher255]

hi i am working on a single view based app ,and was wondering in xcode 4.2 can you apply this code under the -(void)viewDidLoad so when the app starts up background music can play?

NSString *path = [[NSBundle mainBundle] pathForResource:@"Sound" ofType:@"wav"];

AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPathath] error:NULL];

theAudio.delegate=self;
[theAudio play];

[Duncan C]

Originally Posted by cipher255

hi i am working on a single view based app ,and was wondering in xcode 4.2 can you apply this code under the -(void)viewDidLoad so when the app starts up background music can play?

NSString *path = [[NSBundle mainBundle] pathForResource:@"Sound" ofType:@"wav"];

AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPathath] error:NULL];

theAudio.delegate=self;
[theAudio play];

Should work. Why not try it yourself?

BTW, you should put the sound player object into a property so you can stop it, adjust the volume, etc. If you just create it as a local variable, you have no way to reference the audio player object once you exit your viewDidLoad method.

[Domele]

Originally Posted by Duncan C

Should work. Why not try it yourself?

BTW, you should put the sound player object into a property so you can stop it, adjust the volume, etc. If you just create it as an instance variable, you have no way to reference the audio player object once you exit your viewDidLoad method.

I think you mean a local variable.

[Duncan C]

Originally Posted by Domele

I think you mean a local variable.

Good catch. I fixed it in my post. I guess I got distracted while writing that.