ios – 如何在AVPlayerViewController中禁用音频和字幕设置

@H_674_7@@H_674_7@@H_674_7@

玩家的控制器初始化：@H_674_7@

- (void) configureMoviePlayer {


                if(self.moviePlayerController == nil) {

                    self.moviePlayerController = [[AVPlayerViewController alloc] init];

                    [self.view setTranslatesAutoresizingMaskIntoConsTraints:NO];
                    [self.moviePlayerController.view setTranslatesAutoresizingMaskIntoConsTraints:NO];

                    [self.view addSubview: [self.moviePlayerController view]];

                    NSDictionary *views = @{ @"selfview" : self.view,@"movieControllerView" : [self moviePlayerController].view};

                    [self.view addConsTraints:[NSLayoutConsTraint consTraintsWithVisualFormat:@"V:|[movieControllerView]|"
                                                                                      options:0
                                                                                      metrics:nil
                                                                                        views:views]];
                    [self.view addConsTraints:[NSLayoutConsTraint consTraintsWithVisualFormat:@"H:|[movieControllerView]|"
                                                                                      options:0
                                                                                      metrics:nil
                                                                                        views:views]];
                }

            }

收到流URL后,它将传递给新的播放器实例：@H_674_7@

self.moviePlayerController.player = [AVPlayer playerWithURL:self.contentUrl];
 //self.moviePlayerController.showsPlayBACkControls = YES;
 if([self.moviePlayerController respondsToSELEctor:@SELEctor(allowsPictureInPictureplayBACk)]) {                             

    self.moviePlayerController.allowsPictureInPictureplayBACk = YES;
}

示例in the WWDC video不包含按钮.有没有办法只禁用单个按钮,或获取默认工具栏按钮的数组并禁用特定的按钮.@H_674_7@