//系统的音量
MPVolumeView *volumeView = [[MPVolumeView alloc]init];
[self addSubview:volumeView];
//转移到屏幕视线外的地方显示
volumeView.frame = CGRectMake(-1000, -100, 100, 100);
[volumeView sizeToFit];
// 获取系统的音量滑块
for (UIControl *view in volumeView.subviews) {
if ([view.class.description isEqualToString:@"MPVolumeSlider"]) {
systemSlider = (UISlider *)view;
NSLog(@"%f",systemSlider.value);
systemSlider.value = 1;// 音量为0-1
break;
}
}
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