MPMoviePlayerPlaybackDidFinishNotification 在不应调用时被调用

Question

根据苹果的 MPMoviePlayerController 文档：

MPMoviePlayerPlaybackDidFinishNotification - 如果电影播放器​​以全屏模式显示并且用户点击“完成”按钮，则不会发送此通知。

在我看来这是完全错误的。使用下面的代码，当我点击完成按钮时，playerPlaybackDidFinish 就会被调用。

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playerPlaybackDidFinish:) name:MPMoviePlayerPlaybackDidFinishNotification object:self.player];

- (void) playerPlaybackDidFinish:(NSNotification*)notification
{
    NSLog(@"WHY?");
    self.player.fullscreen = NO;
}

我需要区分用户点击“完成”按钮和电影在播放过程中完成的情况。当电影结束时，playerPlaybackDidFinish 确实会被调用，但就像我说的，当你点击“完成”时它也会被调用。

Answer 1

以下是检查 MPMoviePlayerPlaybackDidFinishReasonUserInfoKey 的方法，它是 MPMoviePlayerPlaybackDidFinishNotification 通知的一部分

- (void) playbackDidFinish:(NSNotification*)notification {
    int reason = [[[notification userInfo] valueForKey:MPMoviePlayerPlaybackDidFinishReasonUserInfoKey] intValue];
    if (reason == MPMovieFinishReasonPlaybackEnded) {
        //movie finished playin
    }else if (reason == MPMovieFinishReasonUserExited) {
        //user hit the done button
    }else if (reason == MPMovieFinishReasonPlaybackError) {
        //error
    }
}

Answer 2

当电影一直播放到最后时，我使用以下方法执行某些操作：

- (void)playbackDidFinish:(NSNotification*)notification
{
    BOOL playbackEnded = ([[[notification userInfo] valueForKey:MPMoviePlayerPlaybackDidFinishReasonUserInfoKey] intValue] == MPMovieFinishReasonPlaybackEnded);
    BOOL endReached = (self.player.currentPlaybackTime == self.player.playableDuration);

    if (playbackEnded && endReached) {
        // Movie Ended
    }
}

Answer 3

当您收到通知时，您可以检查播放器的 endPlaybackTime。如果是-1，那么电影就自然结束了。

对于流媒体内容，您可以检查 MPMoviePlayerPlaybackDidFinishNotification 上 userInfo 内的 MPMoviePlayerPlaybackDidFinishReasonUserInfoKey。

如果它等于 MPMovieFinishReasonUserExited 则表示用户停止播放内容。

Answer 4

确保为

    moviePlayer.repeatMode = MPMovieRepeatModeNone;