ios - MPMoviePlayerController 导致泄漏

Question

我正在开发一个视频量很大的 iPad 专用 iOS 应用程序，它使用 ARC，但是当我尝试使用 MPMoviePlayerController 时似乎出现了泄漏，仪器在为视频播放器对象分配内存的代码行上引发了内存泄漏， 有任何想法吗？视频播放完成后，视频播放器的清理似乎也没有发生。

非常感谢任何帮助，一直在到处寻找答案，因为您可以看出这个问题在很大程度上是应用程序性质的阻碍。

代码:

@interface ViewController ()
@property(nonatomic,strong) MPMoviePlayerController * vidPlayer;
@end

@implementation ViewController
@synthesize vidPlayer;

- (void)viewDidLoad
    {
        @autoreleasepool {

        [super viewDidLoad];
        // Do any additional setup after loading the view, typically from a nib.
        [self playVideoForFile:@"01_intro"];
        }
    }

    -(void)playVideoForFile:(NSString*)p_fileName
    {    
            NSString *path = [[NSBundle mainBundle] pathForResource:p_fileName ofType:@"mp4"];
            NSURL *tempURI = [NSURL fileURLWithPath:path];
            vidPlayer = [[MPMoviePlayerController alloc] initWithContentURL:tempURI];

        [vidPlayer setControlStyle:MPMovieControlStyleNone];
        [vidPlayer setAllowsAirPlay:NO];

        [vidPlayer.view setFrame:CGRectMake(0, 0, [[UIScreen mainScreen] bounds].size.height,[[UIScreen mainScreen] bounds].size.width)];


        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(vidFinishedCallback:) name:MPMoviePlayerPlaybackDidFinishNotification object:vidPlayer];

        [vidPlayer play];

        [self.view addSubview:vidPlayer.view];

}

-(void)vidFinishedCallback:(NSNotification*)aNotification
{       
            [vidPlayer pause];
            vidPlayer.initialPlaybackTime = -1;
            [vidPlayer stop];
            vidPlayer.initialPlaybackTime = -1;
            [vidPlayer.view removeFromSuperview];
            vidPlayer = nil;

        [[NSNotificationCenter defaultCenter] removeObserver:self name:MPMoviePlayerPlaybackDidFinishNotification object:vidPlayer];


}

Answer 1

我试过了

MPMoviePlayerController *movieController = [notification object];
[[NSNotificationCenter defaultCenter] removeObserver:self 
    name:MPMoviePlayerPlaybackDidFinishNotification 
    object:movieController];  
movieController = nil;

这似乎有效。