Iphone MPMoviePlayerController在iOS 5上不工作
我用MPMoviePlayerController播放一个“.3gp”视频,我从服务器获取数据并保存在NSData对象中,然后将其写入文档目录中的文件这是我的代码 在.h中,我将videoPlayer定义为Iphone MPMoviePlayerController在iOS 5上不工作,iphone,objective-c,ios,mpmovieplayercontroller,ios5,Iphone,Objective C,Ios,Mpmovieplayercontroller,Ios5,我用MPMoviePlayerController播放一个“.3gp”视频,我从服务器获取数据并保存在NSData对象中,然后将其写入文档目录中的文件这是我的代码 在.h中,我将videoPlayer定义为 @interface MainViewController : UIViewController { MPMoviePlayerController* videoPlayer; } @property (strong, nonatomic) MPMoviePlayerControl
@interface MainViewController : UIViewController {
MPMoviePlayerController* videoPlayer; }
@property (strong, nonatomic) MPMoviePlayerController* videoPlayer;
在.m文件中
-(void)videoWillStartPlayWithUrl:(NSData *)d
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:@"myMove.3gp"];
[d writeToFile:path atomically:YES];
NSURL *url = [NSURL fileURLWithPath:path];
adBannerView.hidden = YES;
self.videoPlayer = [[MPMoviePlayerController alloc]initWithContentURL:url];
self.videoPlayer.controlStyle = MPMovieControlStyleEmbedded;
self.videoPlayer.shouldAutoplay = YES;
[self.videoPlayer.view setFrame: self.view.bounds];
[self.view addSubview:self.videoPlayer.view];
[self.videoPlayer setFullscreen:YES animated:YES];
[self.videoPlayer prepareToPlay];
[self.videoPlayer play];
}
它在iOS<5中工作得很好,但在iOS 5中它只显示一个黑屏并直接退出,我似乎无法找出阻止在iOS 5中播放视频的问题。非常感谢您的帮助在头文件中执行以下操作:-
MPMoviePlayerController *myPlayer;
并将您的财产更改为:-
@property(nonatomic, strong) MPMoviePlayerController *myPlayer;
启动电影播放器,如下所示:-
MPMoviePlayerController *player = [[MPMoviePlayerController alloc] initWithContentURL:Url];
self.myPlayer= player;
您可能已启用arc。在头文件中执行以下操作:-
MPMoviePlayerController *myPlayer;
并将您的财产更改为:-
@property(nonatomic, strong) MPMoviePlayerController *myPlayer;
启动电影播放器,如下所示:-
MPMoviePlayerController *player = [[MPMoviePlayerController alloc] initWithContentURL:Url];
self.myPlayer= player;
您可能已经启用了arc。经过数小时的搜索和调试,发现问题与我试图播放的视频的编解码器有关
虽然它们在iOS 4中工作得很好,但iOS 5需要.3GP视频的特殊编解码器,如中所述。编程指南,所以解决方案是更改我视频的编解码器,代码在iOS 5上运行得非常好。经过数小时的搜索和调试,问题最终证明与我试图播放的视频的编解码器有关
虽然它们在iOS 4中工作得很好,但iOS 5需要.3GP视频的特殊编解码器,如中所述。编程指南,所以解决方案是更改我视频的编解码器,并且代码在iOS 5上运行良好我应该向player还是self.myPlayer发送消息?[self.myPlayer play]或[player play]self.myPlayer..还有一点需要注意的是,您必须在此处大量使用强关键字,但它不起作用!接收到“MPMoviePlayerPlaybackDidFinishNotification”并将播放器从视图中移除,除播放器界面和顶部的加载指示器外,不显示任何内容!还有其他想法吗?我应该给玩家或self.myPlayer发送消息吗?[self.myPlayer play]或[player play]self.myPlayer..还有一点需要注意的是,您必须在此处大量使用强关键字,但它不起作用!接收到“MPMoviePlayerPlaybackDidFinishNotification”并将播放器从视图中移除,除播放器界面和顶部的加载指示器外,不显示任何内容!还有其他想法吗?