How to programatically take a screenshot in Sprite-Kit?

Question

I've been reading resolved questions on how to programmatically take a screenshot but I can't seem to get what I've read to work in sprite kit. For instance:

This question How to take a screenshot programmatically

   UIGraphicsBeginImageContext(self.window.bounds.size);
    [self.window.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    NSData * data = UIImagePNGRepresentation(image);
    [data writeToFile:@"foo.png" atomically:YES];

UPDATE April 2011: for retina display, change the first line into this:

if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)])
    UIGraphicsBeginImageContextWithOptions(self.window.bounds.size, NO, [UIScreen mainScreen].scale);
else
    UIGraphicsBeginImageContext(self.window.bounds.size);

gave me this information, which I tested on my game but it didn't work because window was not recognized on an SKScene. I tried replacing it with scene but that didn't work. Any suggestions?

I also tried this:

UIGraphicsBeginImageContextWithOptions(self.view.bounds.size, NO, scale);
[self drawViewHierarchyInRect:self.bounds afterScreenUpdates:YES];
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

Which I found in this question: ios Sprite Kit screengrab?

But it didn't seem to work either because it didn't recognize scale, or bounds in the second line.

Not work as in blank image or only partial? What content do you have on your screen when the screenshot is executed? — sangony, May 21 '14 at 18:45
It's the game over menu, which displays the users highscore, and I want to execute it when the user taps the twitter or facebook button, then attach it to the share post. So I want it to save to the app if possible, so that it can be referenced in the social sharing with "share.png" if that makes sense. @sangony — user3576196, May 21 '14 at 18:55
The way it didn't work was because it didn't recognize scale in the first line, and in the second line it didn't recgonize self.bounds @sangony — user3576196, May 21 '14 at 18:56
That is exactly what I do in my app!! Check it out https://itunes.apple.com/ca/app/save-square-squares-adventures/id967632086?mt=8 ! I didn't want the user to cheat so i take a screenshot as a proof!! — Aryaman Goel, Aug 04 '15 at 01:36

Fabio · Answer 1 · 2014-11-04T23:14:43.730

6

This is the best solution to take a screen shoot in your Sprite-Kit

UIGraphicsBeginImageContextWithOptions(self.view.bounds.size, NO, 1);
[self.view drawViewHierarchyInRect:self.view.bounds afterScreenUpdates:YES];
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return  viewImage;

edited Nov 04 '14 at 23:14

answered Nov 04 '14 at 22:49

Fabio

1,913
5
29
53

[self.view drawViewHierarchyInRect:self.view.bounds afterScreenUpdates:YES]; - Is causing game to slow down is there any way to slove this issue – Albi Mar 30 '19 at 17:43

score 3 · Answer 2 · answered Aug 04 '15 at 01:34

func screenShot() {

    UIGraphicsBeginImageContextWithOptions(UIScreen.mainScreen().bounds.size, false, 0)
    self.view!.drawViewHierarchyInRect(self.view!.bounds, afterScreenUpdates: true)
    var image:UIImage = UIGraphicsGetImageFromCurrentImageContext()

    UIGraphicsEndImageContext()

    var Image = image //The image is stored in the variable Image

}

screenshot() //Calls the function and takes a screenshot

score 1 · Answer 3 · answered Jul 31 '15 at 07:29

// Full Screen Shot function. Hope this will work well in spritekit.   
func screenShot() -> UIImage {                                                    
 UIGraphicsBeginImageContext(CGSizeMake(frame.size.width, frame.size.height))
 var context:CGContextRef  = UIGraphicsGetCurrentContext()
 self.view?.drawViewHierarchyInRect(frame, afterScreenUpdates: true)
 var screenShot = UIGraphicsGetImageFromCurrentImageContext()
 UIGraphicsEndImageContext();  
 return screenShot 
}

score -2 · Answer 4 · answered May 22 '14 at 11:36

-2

you can take screen shot for a any view.UIGraphicsBeginImageContextWithOptions(self.view.bounds.size, self.view.opaque, 0.0); [self.view.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *gameOverScreenImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext();

answered May 22 '14 at 11:36

Sandeep Singh

268
1
9

Do I just place this inside of a button method? and where does the image save. – user3576196 May 23 '14 at 00:57
Yes, you can put it inside button method. 'gameOverScreenImage' has that image. YOU CAN USE IT AS YOU LIKE. – Sandeep Singh May 29 '14 at 10:14

How to programatically take a screenshot in Sprite-Kit?

4 Answers4