Playing a video file saved in the app's docume

问题:

I have a video file saved in my app's local directory in the documents folder. I want to playback the file when the user clicks on the item in an embedded table view I created. My code for playing back the video is as follows:

NSString* documentPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString* path = [documentPath stringByAppendingPathComponent:@"DemoRecording.mp4"];
NSURL* movieURL = [NSURL fileURLWithPath: path];
[player.view setFrame: self.view.bounds];
[self.view addSubView: player.view];
[player play];
MPMoviePlayerViewController* moviePlayer = [[MPMoviePlayerViewController alloc] initWithContentURL: movieURL];
[self presentMoviePlayerViewControllerAnimated: moviePlayer];

The video doesn't play back. The path is correct and the file exists there.
I know this is a repetitive question. I have referred to these links:
Playing a Downloaded Video from the Documents Directory with Cocoa-Touch
MPMoviePlayer load and play movie saved in app documents
But couldn't find a definitive answer.
Please help me out on this one. I am using iOS 5.1.1, if that changes anything.

EDIT:

It does work. I had forgotten to pass the URL to the movie player.

回答1:

you can play Video from Document Directory like this way:-

-(IBAction)playVideo
{
    NSURL *vedioURL;
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];

    NSArray *filePathsArray = [[NSFileManager defaultManager] subpathsOfDirectoryAtPath:documentsDirectory  error:nil];
    NSLog(@"files array %@", filePathsArray);        

    NSString *fullpath;

    for ( NSString *apath in filePathsArray )
    {
        fullpath = [documentsDirectory stringByAppendingPathComponent:apath];       
        vedioURL =[NSURL fileURLWithPath:fullpath];
    }
    NSLog(@"vurl %@",vedioURL);
    MPMoviePlayerViewController *videoPlayerView = [[MPMoviePlayerViewController alloc] initWithContentURL:vedioURL];
    [self presentMoviePlayerViewControllerAnimated:videoPlayerView];
    [videoPlayerView.moviePlayer play];     
}

NOTE

Please note that don't Forget to include requested Framework or connect Delegate

回答2:

The mistake in you was you missed / before DemoRecording.mp4

It should be

NSString* path = [documentPath stringByAppendingPathComponent:@"/DemoRecording.mp4"];

Also you are writing player statements before declaring it.