adding Volume Control in Objective-C

The best thing about this small feature is easy implementation in any class. We just import MediaPlayer framework in header of our class (#import <MediaPlayer/MPVolumeView.h>) and add this code below in method we know that is appropriate for this feature (init method).

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MPVolumeView *volumeView = [[[MPVolumeView alloc] initWithFrame:CGRectMake(0, 0, 200, 20)] autorelease];   volumeView.center = CGPointMake(150,370); [volumeView sizeToFit];   [self.view addSubview:volumeView];