Iphone: Volume control in IOS8

MPVolumeView* volumeView;

//find the volumeSlider

UISlider* volumeViewSlider;

for (UIView *view in [volumeView subviews]){

        if ([view.class.description isEqualToString:@"MPVolumeSlider"]){

            volumeViewSlider = (UISlider*)view;

            break;

        }

    }

    

    if (volumeViewSlider !=nil) {

         [volumeViewSlider setValue:volume animated:YES];

    }

In IOS7 it was

[[MPMusicPlayerController applicationMusicPlayer] setVolume:volume];