iOS:撷取萤幕撷取画面以呈现影片ipad

本文介绍了iOS:撷取萤幕撷取画面以呈现影片ipad的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在尝试截取播放视频的屏幕截图，但屏幕截图始终显示为空白.这是我的代码:

I'm trying to take screenshot playing video but the screenshot always is showing blank. This is my code:

UIGraphicsBeginImageContext(self.view.bounds.size); [self.view.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); NSData *data = UIImageJPEGRepresentation(viewImage, 1.0); NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsPath = [paths objectAtIndex:0]; NSString *filePath = [documentsPath stringByAppendingPathComponent:@"image.jpg"]; [data writeToFile:filePath atomically:YES];

我正在使用AVPlayer/AVPlayerLayer播放视频.

I'm using AVPlayer/AVPlayerLayer to play the video.

你们中的任何人都知道为什么会这样吗?还是我需要对视频做一些特殊的事情才能拍摄屏幕截图?

Any of you knows why this happening? or if I need to do something special with video to be able to take the screenshot?

非常感谢您的帮助.

推荐答案

我找到了解决问题的方法:

I found a solution to my problem:

AVAssetImageGenerator *imageGenerator = [AVAssetImageGenerator assetImageGeneratorWithAsset:[self.player.currentItem asset]]; CGImageRef ref = [imageGenerator copyCGImageAtTime:self.player.currentItem.currentTime actualTime:nil error:nil]; UIImage *viewImage = [UIImage imageWithCGImage:ref]; CGImageRelease(ref); NSData *data = UIImageJPEGRepresentation(viewImage, 1.0); NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsPath = [paths objectAtIndex:0]; NSString *filePath = [documentsPath stringByAppendingPathComponent:@"image.jpg"]; [data writeToFile:filePath atomically:YES];