Take snapshot of view / WebView programmatically

问题

I want to take a snapshot of a view (WebView) or, if that is not possible, the whole screen, so I can save it into the user's photo gallery. I was wondering if this is possible.

回答1:

To get the image, you'll want to use:

UIGraphicsBeginImageContext(self.bounds.size);

[theView.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

Then, to save to the Photos Library:

UIImageWriteToSavedPhotosAlbum(viewImage,nil,NULL,NULL);

来源：https://stackoverflow.com/questions/501496/take-snapshot-of-view-webview-programmatically