MPMoviePlayerController拍攝屏幕截圖，但只顯示黑屏

我在玩MPMoviePlayerController.Perfectly時截屏，保存屏幕截圖，但圖像只有黑色。我使用下面的代碼。MPMoviePlayerController拍攝屏幕截圖，但只顯示黑屏

UIGraphicsBeginImageContext(self.moviePlayerController.view.frame.size); 
[self.moviePlayerController.view.layer renderInContext:UIGraphicsGetCurrentContext()]; 
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext(); 
UIGraphicsEndImageContext(); 
UIImageWriteToSavedPhotosAlbum(viewImage, nil, nil, nil);

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2012-06-29 Manikandan K

您可以用MPMoviePlayerControllerthumbnailImageAtTime方法試試。

UIImage *aThumbnail = [player thumbnailImageAtTime:timeCode timeOption:MPMovieTimeOptionExact]; 
//timeCode is a time within the video length, for example: 5 seconds.

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2012-06-29 09:04:42 Maulik

謝謝...但沒有任何反應UIGraphicsBeginImageContext（個體經營.moviePlayerController.view.frame.size）; [self.moviePlayerController.view.layer renderInContext：UIGraphicsGetCurrentContext（）]; UIGraphicsEndImageContext（）; UIImage * aThumbnail = [self.moviePlayerController thumbnailImageAtTime：0 timeOption：MPMovieTimeOptionExact]; UIImageWriteToSavedPhotosAlbum（aThumbnail，nil，nil，nil）;我用這條線。 –

最後我解決了這個問題......我用這個代碼...完美的工作......感謝所有...

- (void)captureScreenShot 
{ 
    CGImageRef originalImage = UIGetScreenImage(); 
    CGImageRef videoImage = CGImageCreateWithImageInRect(originalImage, CGRectMake(0, 66, 320, 230));    
    UIImage *snapShotImage = [UIImage imageWithCGImage:videoImage]; 
    UIImageWriteToSavedPhotosAlbum(snapShotImage, nil, nil, nil); 
    CGImageRelease(originalImage);     
    CGImageRelease(videoImage); 
}

來源

2012-06-30 10:13:37

MPMoviePlayerController拍攝屏幕截圖，但只顯示黑屏

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