Ios 如何在mac的xcode中为AVPlayer制作音量滑块

Ios 如何在mac的xcode中为AVPlayer制作音量滑块,ios,xcode,macos,volume,avplayer,Ios,Xcode,Macos,Volume,Avplayer,因此,我有我的收音机应用程序的简单代码: -(IBAction)europaPlus:(id)sender{ NSLog(@"EuropaPlus work"); if (clicked == 0) { clicked = 1; NSString *urlAddress = @"http://cast.europaplus.ua/europaplus.aac"; NSURL *u

因此,我有我的收音机应用程序的简单代码:

 -(IBAction)europaPlus:(id)sender{

        NSLog(@"EuropaPlus work");

        if (clicked ==  0) {

            clicked = 1;

            NSString *urlAddress = @"http://cast.europaplus.ua/europaplus.aac";

            NSURL *urlStream = [NSURL URLWithString:urlAddress];

            radioPlus = [[AVPlayer alloc] initWithURL:urlStream];

            [radioPlus play];}

        else {

            NSLog(@"EuropaPlus not work");

            [radioPlus release];

            clicked = 0;

        }
}
此外,我使用AVPLAYER仅用于URL连接,但如何在MAC操作系统中对AVPLAYER进行音量控制。我知道IOS中的MPMVolumeControl,但我有mac os项目。谢谢

player = [[AVAudioPlayer alloc] initWithContentsOfURL:
          [NSURL fileURLWithPath:resourcePath] error:&err];
player.delegate = self;
[player play];
player.volume=.number;
player.numberOfLoops=-number;

有关更多信息,请查看以下链接:

-(IBAction)slidervaluechanged {

     player.volume=slider.value; 

}