MPMoviePlayerController发布问题

Question

这是代码

- (void)applicationDidFinishLaunching:(UIApplication *)application {
  NSBundle *bundle = [NSBundle mainBundle];
 NSString *moviePath = [bundle pathForResource:@"sample_mpeg4" ofType:@"mp4"];
 NSURL *movieURL = [[NSURL fileURLWithPath:moviePath] retain];


 MPMoviePlayerController *moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:movieURL];
 moviePlayer.movieControlMode =   MPMovieControlModeHidden;

 [moviePlayer play];

 [[NSNotificationCenter defaultCenter] addObserver:self 
 selector:@selector(moviePlaybackDidFinish:) 
 name:MPMoviePlayerPlaybackDidFinishNotification 
 object:nil]; 

 }
- (void) moviePlaybackDidFinish:(NSNotification*)notification
 {

MPMoviePlayerController *theMovie = [notification object];
[[NSNotificationCenter defaultCenter] removeObserver:self                                      name:MPMoviePlayerPlaybackDidFinishNotification
                                              object:theMovie];
[theMovie stop];
[theMovie release];

[window addSubview:tabBarController.view];
[window makeKeyAndVisible];
}

所以我的问题是我的应用程序内存使用量增加了3MB，即使在发布后它仍然存在，这是否意味着内存不会被释放？

Answer 1

查看

中的代码

- (void) moviePlaybackDidFinish:(NSNotification*)notification
MPMoviePlayerController *theMovie = [notification object];
[[NSNotificationCenter defaultCenter] removeObserver:self                                      name:MPMoviePlayerPlaybackDidFinishNotification                                             object:theMovie];

你确定“theMovie”是你创建的“moviePlayer”吗？我相信它们是不同的内存地址，因为您在注册通知时没有分配对象。确保

 [[NSNotificationCenter defaultCenter] addObserver:self 
 selector:@selector(moviePlaybackDidFinish:) 
 name:MPMoviePlayerPlaybackDidFinishNotification 
 object:moviePlayer];

然后再试一次。