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MPMoviePlayerController在iOS4中不工作

ios4 mpmovieplayercontroller objective-c iphone

1

4thSpace wkw · 技术社区 · 14 年前

MPMoviePlayerController 去玩。在模拟器(带iOS4的iPhone设备)中,我听到声音,但没有视频。在设备上(iphone3gs和iOS4),我什么都没有得到。这是我的密码:

    MPMoviePlayerController *moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:[NSURL fileURLWithPath:moviePath]];
    moviePlayer.movieControlMode = MPMovieControlModeDefault;

    if ([moviePlayer respondsToSelector:@selector(view)]) {
        moviePlayer.controlStyle = MPMovieControlStyleFullscreen;
        [moviePlayer.view setFrame:self.view.bounds];
        [self.view addSubview:moviePlayer.view];
    }

    [moviePlayer play];

知道我做错了什么吗?

2 回复 | 直到 7 年前

1

9

Art Gillespie 14 年前

你的代码的问题是没有调用 setFullscreen:animated 在你的 MPMoviePlayerController 实例。

- (void)willEnterFullscreen:(NSNotification*)notification {
    NSLog(@"willEnterFullscreen");
}

- (void)enteredFullscreen:(NSNotification*)notification {
    NSLog(@"enteredFullscreen");
}

- (void)willExitFullscreen:(NSNotification*)notification {
    NSLog(@"willExitFullscreen");
}

- (void)exitedFullscreen:(NSNotification*)notification {
    NSLog(@"exitedFullscreen");
    [self.movieController.view removeFromSuperview];
    self.movieController = nil;
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (void)playbackFinished:(NSNotification*)notification {
    NSNumber* reason = [[notification userInfo] objectForKey:MPMoviePlayerPlaybackDidFinishReasonUserInfoKey];
    switch ([reason intValue]) {
        case MPMovieFinishReasonPlaybackEnded:
            NSLog(@"playbackFinished. Reason: Playback Ended");         
            break;
        case MPMovieFinishReasonPlaybackError:
            NSLog(@"playbackFinished. Reason: Playback Error");
            break;
            case MPMovieFinishReasonUserExited:
            NSLog(@"playbackFinished. Reason: User Exited");
            break;
        default:
            break;
    }
    [self.movieController setFullscreen:NO animated:YES];
}

- (void)showMovie {
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(willEnterFullscreen:) name:MPMoviePlayerWillEnterFullscreenNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(willExitFullscreen:) name:MPMoviePlayerWillExitFullscreenNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(enteredFullscreen:) name:MPMoviePlayerDidEnterFullscreenNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(exitedFullscreen:) name:MPMoviePlayerDidExitFullscreenNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playbackFinished:) name:MPMoviePlayerPlaybackDidFinishNotification object:nil];

    NSURL* movieURL =  [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"tron" ofType:@"mov"]];
    self.movieController = [[MPMoviePlayerController alloc] initWithContentURL:movieURL];
    if ([self.movieController respondsToSelector:@selector(view)]) {
        self.movieController.view.frame = self.view.frame;
        [self.view addSubview:movieController.view];
        [self.movieController setFullscreen:YES animated:YES];
    }
    [self.movieController play];
}

// This method is set as the action for an on-screen button
- (void)movieTime:(id)sender {
    [self showMovie];
}

2

-4

Jon Shier 14 年前

为了 MPMoviePlayerController view 是属性,不是方法,所以不能使用 respondsToSelector: