使用GMImagePickerController播放视频时出现java黑屏

Question

- (void)assetsPickerController:(GMImagePickerController *)picker didSelectAsset:(PHAsset *)asset{

self.videoURL = [NSURL URLWithString:asset.localIdentifier];

NSLog(@"The value of URL is %@:",self.videoURL);

[self playVideo];

[picker.presentingViewController dismissViewControllerAnimated:YES completion:nil];
}

- (void)playVideo{

self.playerVC = [[MPMoviePlayerViewController alloc] init];

self.playerVC.moviePlayer.contentURL = self.videoURL;
self.playerVC.moviePlayer.movieSourceType = MPMovieSourceTypeFile;
[self.playerVC.moviePlayer.view setFrame:CGRectMake (0, 100, 320, 385)];
[self.view addSubview:self.playerVC.moviePlayer.view];

[self.playerVC.moviePlayer play];
}

在从摄像头滚动中选择视频后，我打算在应用程序上播放，但出现了一个黑屏，如图所示：

我的代码怎么了？谢谢

Answer 1

这里，MPMoviePlayerViewController无法获取您的视频url。你应该检查视频url是否可用。 在这里，你将在后台线程中获得视频url

[asset requestContentEditingInputWithOptions:kNilOptions completionHandler: ^(PHContentEditingInput *contentEditingInput, NSDictionary *info) { self.videoURL = contentEditingInput.fullSizeImageURL; }];

在获得视频url之前，将执行MPMoviePlayerViewController代码

要解决这个问题，首先你应该获得视频url，如果url可用，请调用MPMoviePlayerViewController代码来播放视频