Take snapshot / screenshot of UIWebView

问题

How do I take a snapshot / screenshot of the UIWebView control?

回答1:

Use This:

UIGraphicsBeginImageContext(rect.size);
[webView.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

回答2:

The accepted answer is correct, however the screenshot is not in retina resolution. Using UIGraphicsBeginImageContextWithOptions and set its scale parameter 0.0f makes it capture in native resolution.

UIWindow *keyWindow = [[UIApplication sharedApplication] keyWindow];
CGRect rect = [keyWindow bounds];
UIGraphicsBeginImageContextWithOptions(rect.size,YES,0.0f);
CGContextRef context = UIGraphicsGetCurrentContext();
[keyWindow.layer renderInContext:context];   
UIImage *capturedScreen = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

回答3:

use this code to take a screenshot and save it to the library

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

you can change the screenshot taking portion by changing the

UIGraphicsBeginImageContext(self.view.bounds.size);

to your respective value try it it will help you

来源：https://stackoverflow.com/questions/3458085/take-snapshot-screenshot-of-uiwebview

标签

ios

uiwebview