无法在iOS版

从文件目录播放电影

我有这个功能写NSData的记录字典 -无法在iOS版

- (void)writeData 
{ 
    NSString *str = @"http://labs.widespace.com/resources/banner/ikea/verkligheten/video.m4v"; 

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
    NSString *documentsDirectory = [paths objectAtIndex:0]; 
    NSString *path = [documentsDirectory stringByAppendingPathComponent:str]; 
    NSLog(@"%@",path); 
    NSLog(@"About to Write Data"); 
    NSData* data0 = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:str]]; 
    [data0 writeToFile:path atomically:YES]; 
    NSLog(@"Writting Data Completed"); 
}

后来我读了这些数据，并尝试播放使用的MPMoviePlayerController视频，但不幸的是这不PLAY-

- (void)readData 
{ 
    NSString *str = @"http://labs.widespace.com/resources/banner/ikea/verkligheten/video.m4v"; 
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,  NSUserDomainMask, YES); 
    NSString *documentsDirectory = [paths objectAtIndex:0]; 
    NSString *path = [documentsDirectory stringByAppendingPathComponent:str]; 
    NSURL* url = [[NSURL alloc] initFileURLWithPath:path];  
    NSLog(@"url:%@",url); 

    NSError *error = nil; 
    BOOL isReacahble = [url checkResourceIsReachableAndReturnError:&error]; 
    NSLog(@"isReachable :%i,%@",isReacahble,error); 

    BOOL fileExist = [[NSFileManager defaultManager] fileExistsAtPath:path]; 

    if(fileExist) 
    { 
     NSLog(@"File Exist in path"); 
    } 
    else 
    { 
     NSLog(@"NO File Exist"); 
    } 

    MPMoviePlayerController *moviePlayer=[[MPMoviePlayerController alloc] initWithContentURL:url]; 
    [moviePlayer prepareToPlay]; 
    NSLog(@"movie player:%@",moviePlayer); 
    [moviePlayer setControlStyle: MPMovieControlStyleFullscreen]; 
    [moviePlayer.view setFrame:CGRectMake(0, 0,320, 480)]; 
    [self.view addSubview:moviePlayer.view]; 
    moviePlayer.shouldAutoplay = YES; 
    [moviePlayer play]; 
}

当我尝试玩这个它显示了在无差错

2013-01-17 11:21:07.067 VideoCheck[338:907] [MPAVController] Autoplay: Disabling autoplay for pause 
2013-01-17 11:21:07.068 VideoCheck[338:907] [MPAVController] Autoplay: Disabling autoplay 
2013-01-17 11:21:07.090 VideoCheck[338:907] [MPAVController] Autoplay: Skipping autoplay, disabled (for current item: 1, on player: 0) 
2013-01-17 11:21:07.091 VideoCheck[338:907] movie player:<MPMoviePlayerController: 0x21078250> 
2013-01-17 11:21:07.093 VideoCheck[338:907] [MPAVController] Autoplay: Skipping autoplay, disabled (for current item: 1, on player: 0) 
2013-01-17 11:21:07.102 VideoCheck[338:907] [MPAVController] Autoplay: Enabling autoplay 
2013-01-17 11:21:07.113 VideoCheck[338:907] [MPAVController] Autoplay: Likely to keep up or full buffer: 0 
2013-01-17 11:21:07.114 VideoCheck[338:907] [MPAVController] Autoplay: Skipping autoplay, not enough buffered to keep up. 
2013-01-17 11:21:07.115 VideoCheck[338:907] [MPAVController] Autoplay: Enabling autoplay 
2013-01-17 11:21:07.121 VideoCheck[338:907] [MPCloudAssetDownloadController] Prioritization requested for media item ID: 0 
2013-01-17 11:21:07.149 VideoCheck[338:907] [MPAVController] Autoplay: Enabling autoplay

有人可以运行代码，并提供一些有关这里发生的事情的信息??请有人帮助我。我正在使用iOS 6.

来源

2013-01-17 russell

我发现这个问题，这是完全愚蠢的事情，如果我们使用大量的'/'大名称，UIKit无法正确解析数据，还有1个事情要用MPMoviePlayer播放视频，我们必须使用一些视频格式如URL路径中的.m4v扩展名，否则MPMoviePlayer将无法播放它。 – russell

在您的wrieData方法中，不是将URL作为文件的名称，而只给出video的名称。像

NSString *path = [documentsDirectory stringByAppendingPathComponent:[str lastPathComponent]];

并做readData方法一样了。

来源

2013-01-17 06:12:32 arthankamal

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