使用MPMoviePlayerController從服務器播放視頻時出錯

Question

我嘗試使用此代碼在服務器上播放視頻。我有一個錯誤。

//Play the video from server 
    - (IBAction)playVideo:(id)sender; 
    { 
     NNSURL *url = [[NSURL alloc]initWithString: aVideo.urlVideo]; 
NSLog(@"URLVIDEO %@", url); 
MPMoviePlayerController *VideoPlayer = [[MPMoviePlayerController alloc]initWithContentURL: url]; 
[VideoPlayer play];  
    } 

//控制檯

URLVIDEO http://147.83.74.180/videos/low/ElTemps-index.m3u8 
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Content URL must not be nil.' 

如果我這樣做，我可以aVideo.urlVideo定義的視頻類和它得到的值時，我解析XML文件

//Video.h 
NSString urlVideo; 

//XMLParser.m 
    [aVideo setValue:currentElementValue forKey:elementName]; //here i add the string 

播放視頻：

NSString *videoURL = @"http://147.83.74.180/videos/low/ElTemps-index.m3u8"; 
    MPMoviePlayerController *VideoPlayer = [[MPMoviePlayerController alloc]initWithContentURL:[NSURL URLWithString:videoURL]]; 

Answer 1

aVi deo.urlVideo不是有效的URL字符串。這是NSURL是零。