Ios MPMoviePlayerController-检测按下下一个/上一个按钮

我正在使用MPMoviePlayerController，我需要检测按下下一个/上一个按钮。我试过几种方法，但似乎都不管用

以下是我尝试过的：

• 远程控制事件

问题是永远不会调用

remoteControlReceivedWithEvent

方法。我已经读到这在高于6的iOS版本中不起作用-我正在使用iOS 7

• 通知

我尝试使用

MPMoviePlayerPlaybackStateDidChangeNotification

并检查

MPMoviePlaybackStateSeekingForward

或

MPMoviePlaybackStateSekingBackward

——不幸的是，这些播放状态是在拖动播放栏时设置的，而不是在按下Next/Prev按钮时设置的

---

有什么想法吗？

对不起，我不太了解您的问题，但是如果您想在控制中心的应用程序中使用控件，您可以使用：

      // You need cath the singleton
MPRemoteCommandCenter *myRemote = [MPRemoteCommandCenter sharedCommandCenter];
//And add the selector you can fire depends on the button, a couple of examples:
[myRemote.playCommand addTarget:self action:@selector(myPlayMethods)];
[myRemote.nextTrackCommand addTarget:self action:@selector(myNextTrackMethods)];

---

尝试在以下位置注册事件：

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];

    // Turn on remote control event delivery
    [[UIApplication sharedApplication] beginReceivingRemoteControlEvents];

    // Set itself as the first responder
    [self becomeFirstResponder];
}

---

也不要设置

kAudioSessionProperty\u覆盖与其他人的类别混合

属性

您是否尝试过MPMoviePlayerNowPlayingMoviedChangeNotification？

---

如果这不起作用，那么我建议使用较低级别的API，即AVPlayer。它提供了对视频播放和其他操作的细粒度控制

您需要注册以处理moviePlayerLoadStateChanged的通知。按下下一个/上一个按钮时，将调用moviePlayerLoadStateChanged，加载状态将为MPMovieLoadStateUnknown

-(void)registerMyStuff {
    [[NSNotificationCenter defaultCenter] addObserver:self
                            selector:@selector(moviePlayerLoadStateChanged:)
                                    name:MPMoviePlayerLoadStateDidChangeNotification
                                           object:self.mpc];
}

- (void)moviePlayerLoadStateChanged:(NSNotification *)notification
{
    MPMoviePlayerController *moviePlayer = notification.object;
    MPMovieLoadState loadState = moviePlayer.loadState;

    if(loadState == MPMovieLoadStateUnknown)
    {
        // this is where the next/prev buttons notify
        // there is no video in this state so load one
        // just reload the default movie

        NSLog(@"MPMovieLoadStateUnknown");
        self.mpc.contentURL = self.fileURL;
        [self.mpc prepareToPlay];

        return;
    }
    else if(loadState & MPMovieLoadStatePlayable)
    {
        NSLog(@"MPMovieLoadStatePlayable");
    }
    else if(loadState & MPMovieLoadStatePlaythroughOK)
    {
        NSLog(@"MPMovieLoadStatePlaythroughOK");
    } else if(loadState & MPMovieLoadStateStalled)
    {
        NSLog(@"MPMovieLoadStateStalled");
    }
}

---

您可以更改

MPMoviePlayerController

overlayView，就像更改

UIImagePickerController

overlayView一样，以实现所需的功能

MPMoviePlayerController *moviePlayer = [[MPMoviePlayerController alloc]
    initWithContentURL:someUrl];

moviePlayer.movieControlMode = MPMovieControlModeHidden;
[moviePlayer play];

NSArray *windows = [[UIApplication sharedApplication] windows];

if ([windows count] > 1) {

     UIWindow *moviePlayerWindow = [[UIApplication sharedApplication] keyWindow];
     [moviePlayerWindow addSubview:yourCustomOverlayView];
}

---

正如你在我的帖子中看到的，这是我尝试的第一件事，但它不起作用。是不是当MPMoviePlayerController显示时，调用ViewWillEnglish，从而结束接收遥控？请尝试注释掉视图将消失，然后再试一次。@John谢谢你的建议，我也这么认为，没有这样的运气！：（您看过MPMoviePlayerNowPlayingMoviedChangeNotification吗？它告诉您当前播放的电影何时更改，如果您有电影的字典或数组，您可以确定正在播放的电影是下一部电影还是上一部电影。还有一个解决方案是将Uiapplication和Impression子类化-（void）remoteControlReceivedWithEvent:（UIEvent*）receivedEvent在那里你试过了吗？

MPMoviePlayerController *moviePlayer = [[MPMoviePlayerController alloc]
    initWithContentURL:someUrl];

moviePlayer.movieControlMode = MPMovieControlModeHidden;
[moviePlayer play];

NSArray *windows = [[UIApplication sharedApplication] windows];

if ([windows count] > 1) {

     UIWindow *moviePlayerWindow = [[UIApplication sharedApplication] keyWindow];
     [moviePlayerWindow addSubview:yourCustomOverlayView];
}