objective c - how to Control iOS system Volume using a UISlider

Question

I've a music player app and I wanna control system volume through a UISlider How can I do it? I've searched google and stack overflow but its showing something related to MPMusicPlayerController and MPVolumeView and that too not easy to understand. Is there any API for It. please do help.

Answer 1

I love new learners... Simple answer for you...

First create a UIView in your StoryBoard, where you want to put a volume slider. Now create a IBOutlet for that view in your ViewController implementation.

for ex:

@property (nonatomic,strong) IBOutlet UIView* volumeView;

Now in the viewDidLoad method write the following code:

MPVolumeView *mpVolumeView = [[MPVolumeView alloc]initWithFrame:self.volumeView.bounds];
[self.volumeView addSubview:mpVolumeView];
[mpVolumeView sizeToFit];

Now you will have volume control in your app...

Note: this code will not work for a simulator.

cheers.