Question

好的，最后让我的应用程序有setContentURL方法。但现在它打破了我的应用程序，我非常接近结束:( 这是代码中断的地方：

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event 
{
    // please work!!!

    NSString *title = [[NSString alloc] initWithFormat:@"bla bla"];
    NSURL *newURL = [NSURL URLWithString:title];

    [mp setContentURL:newURL];

}

这是首次加载应用时启动的方法，并且在调用setContentURL时加载电影很好，因为这是我的应用崩溃的地方：

- (void) readyPlayer
{
    mp =  [[MPMoviePlayerController alloc] initWithContentURL:movieURL];

    if ([mp respondsToSelector:@selector(loadState)]) 
    {
        // Set movie player layout
        //[mp setControlStyle:MPMovieControlStyleFullscreen];
        [mp setControlStyle:MPMovieControlStyleNone];
        [mp setFullscreen:YES];

        // May help to reduce latency
        [mp prepareToPlay];

        // Register that the load state changed (movie is ready)
        [[NSNotificationCenter defaultCenter] addObserver:self 
                                                 selector:@selector(moviePlayerLoadStateChanged:) 
                                                     name:MPMoviePlayerLoadStateDidChangeNotification 
                                                   object:nil];
    }  
    else
    {
        // Register to receive a notification when the movie is in memory and ready to play.
        [[NSNotificationCenter defaultCenter] addObserver:self 
                                                 selector:@selector(moviePreloadDidFinish:) 
                                                     name:MPMoviePlayerContentPreloadDidFinishNotification
                                                   object:nil];
    }

    // Register to receive a notification when the movie has finished playing. 
    [[NSNotificationCenter defaultCenter] addObserver:self 
                                             selector:@selector(moviePlayBackDidFinish:) 
                                                 name:MPMoviePlayerPlaybackDidFinishNotification 
                                               object:nil]; 

}

Answer 1

您通过执行[... alloc]来分配内存，但我没有看到任何自动释放或释放...这可能是应用程序崩溃的原因，因为ObjC没有垃圾收集器而您需要清理起来自己如果内存变高，您的应用将终止。

应用程序在setContentURL方法调用中断

1 个答案: