更改MPMoviePlayerController的内容

Question

当我尝试以下操作时，双击时当前播放的视频会停止，但新视频无法播放。我只是一个黑屏。

UITapGestureRecognizer * tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTap:)];
tap.numberOfTapsRequired = 2;
[self.moviePlayer.view addGestureRecognizer:tap];


- (void)handleTap:(UITapGestureRecognizer *)gesture {

    NSBundle *bundle = [NSBundle mainBundle];
    NSString *moviePath = [bundle pathForResource:@"Movie2" ofType:@"mp4"];


    [self.moviePlayer setContentURL:[NSURL fileURLWithPath:moviePath]];
    NSLog(@"contentURL: %@", self.moviePlayer.contentURL);
}

日志语句正确显示文件：//localhost/Users/me/Library/Application%20Support/iPhone%20Simulator/5.0/Applications/15072262-7BC0-42D5-840C-740CF5B97D55/MyApp.app/Movie2.mp4 < / p>

如果我在第一次创建MPMoviePlayerController时将它设置为contentURL，则Movie2.mp4有效并播放。为什么我不能改变播放器的内容？

Answer 1

实际上我只需要在更改contentURL之后告诉它播放： [self.movi​​ePlayer play];