停止视频后如何关闭 MPMoviePlayerController

Question

我已在 30 秒内成功停止视频。但我无法关闭MP MovieViewController，我想停止缓冲活动。我用过这段代码.....

视频播放代码：

NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"Pungi" ofType:@"mp4"]];

self.movie = [[MPMoviePlayerController alloc] initWithContentURL:url];
self.movie .controlStyle = MPMovieControlStyleEmbedded;
[  self.movie  play];
[self.view addSubview:self.movie.view];
[self.movie setFullscreen:YES animated:YES];
self.movie.initialPlaybackTime = 0.5;
[NSTimer scheduledTimerWithTimeInterval:15.0
                                 target:self
                               selector:@selector(stopVideo)
                               userInfo:nil
                                repeats:NO];

停止视频：

[self.movie stop];
[self.movie.view removeFromSuperview];
[self.movie release];

Answer 1

将您的 MPMoviePlayerController 放在一个单独的类中并加载它：

MoviePlayerViewController.h

#import <MediaPlayer/MediaPlayer.h> 

@interface MoviePlayerViewController : UIViewController

@end

MoviePlayerViewController.m

#import "MoviePlayerViewController.h"

MPMoviePlayerViewController *movieController;

@interface MoviePlayerViewController ()

@end

@implementation MoviePlayerViewController



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

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

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

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

    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (void)playbackFinished:(NSNotification*)notification {
    NSNumber* reason = [[notification userInfo] objectForKey:MPMoviePlayerPlaybackDidFinishReasonUserInfoKey];
    switch ([reason intValue]) {
        case MPMovieFinishReasonPlaybackEnded:
            [self dismissModalViewControllerAnimated:YES];
            break;
        case MPMovieFinishReasonPlaybackError:
            break;
        case MPMovieFinishReasonUserExited:
            [self dismissModalViewControllerAnimated:YES];
            break;
        default:
            break;
    }
}

- (void)viewDidLoad
{
    [super viewDidLoad];

    [[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];



    NSString *videoName = @"Videoname";

    NSString *filepath   =   [[NSBundle mainBundle] pathForResource:videoName @"movietype"];
    NSURL    *fileURL    =   [NSURL fileURLWithPath:filepath];
    movieController = [[MPMoviePlayerViewController alloc] initWithContentURL:fileURL];


    [movieController.view setFrame:CGRectMake(0, -20, 320, 480)];
    [self.view addSubview:movieController.view];

    [movieController.moviePlayer play];

}

ViewController.m

    MoviePlayerViewController *player = [[MoviePlayerViewController alloc] initWithNibName:nil bundle:nil];
 [self presentModalViewController:player animated:YES];

它的作用：

MoviePlayerViewController 是一个自定义类，它加载带有视频的MPMoviePlayerController。在viewDidLoad 方法（或任何你想要的方法）中加载MoviePlayerViewController。 ([self presentModalViewController:animated]).... 这样做的好处是，您的主类不会因moviecrap/定义而过载，并且您可以在MoviePlayerViewController 完成使用通知检查它是否已停止时轻松关闭它。 如果它已停止：

[self dismissModalViewControllerAnimated:YES];

希望对您有所帮助！

Answer 2

如下面的代码所示，您应该在实际停止之前暂停并将 initialPlaybackTime 设置为 -1。这是 MPMoviePlayerController 提供的棘手的事情之一。

    [_moviePlayerController pause];

    if ([_moviePlayerController isKindOfClass:[MPMoviePlayerController class]]) {
        ((MPMoviePlayerController*)_moviePlayerController).initialPlaybackTime = -1;
    }

    [_moviePlayerController stop];
    if ([_moviePlayerController isKindOfClass:[MPMoviePlayerController class]]) {
        ((MPMoviePlayerController*)_moviePlayerController).initialPlaybackTime = -1;
    }
    [_moviePlayerController.view removeFromSuperview];

Answer 3

需要在viewDidLoad中添加通知观察者：

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

然后添加方法：

 - (void)moviePlayerPlaybackDidFinishNotification:(NSNotification*)notification 
 {
    [self dismissMoviePlayerViewControllerAnimated];
 }

Answer 4

在您的标头中导入一些标头：

 #import <MediaPlayer/MediaPlayer.h>
 #import <MediaPlayer/MPMoviePlayerViewController.h>

您可能还需要平衡您的“presentMoviePlayer”调用与某处的关闭：

[self dismissMoviePlayerViewControllerAnimated];

如果您提前完成了资源，您可以通过使用 NotificationManager 监视 MPMoviePlayerPlaybackDidFinishNotification 来更快地释放它。

还有

- (void)dealloc {
   [movie release], 
   movie = nil;
   [super dealloc];
}

Answer 5

试试这个......

self.movie.initialPlaybackTime = -1; 
[self.movie stop]; 
[self.movie release];