CODEWITHSUNDEEP
iosscreenshot
LiangWang
LiangWang

Reputation: 8836

How to capture a designated regional screenshot on screen in Xcode

How to capture a designated regional screenshot on screen in Xcode?

For example, I hope to capture a region of (0,100,320,200) on screen and save to UIImage object?

Thanks

Upvotes: 0

Views: 3619

Answers (1)

Siba Prasad Hota
Siba Prasad Hota

Reputation: 4789

Try the Below code for full screen screenshot (key window)

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();

Try This code capture a UIView in native resolution

CGRect rect = [captureView bounds];
UIGraphicsBeginImageContextWithOptions(rect.size,YES,0.0f);
CGContextRef context = UIGraphicsGetCurrentContext();
[captureView.layer renderInContext:context];   
UIImage *capturedImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

This saves the UIImage in jpg format with 95% quality in the app's document folder if you need to do that.

NSString  *imagePath = [NSHomeDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:@"Documents/capturedImage.jpg"]];    
[UIImageJPEGRepresentation(capturedImage, 0.95) writeToFile:imagePath atomically:YES];

Source : How Do I Take a Screen Shot of a UIView?

Upvotes: 4

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