ios Sprite Kit screengrab?

Question

I am trying to get a screen grab of a view that has a SKScene in it. The technique I am using is:

UIGraphicsBeginImageContextWithOptions(self.view.bounds.si         


        

Answer 1

A solution for Swift:

func getScreenshot(scene: SKScene, duration:TimeInterval = 0.0001, completion:((_ txt:SKTexture) -> Void)?) {
    let action = SKAction.run {
        let bounds = scene.view?.bounds
        var image = UIImage()
        UIGraphicsBeginImageContextWithOptions(bounds!.size, true, UIScreen.main.scale)
        scene.view?.drawHierarchy(in: bounds!, afterScreenUpdates: true)
        if let screenshot = UIGraphicsGetImageFromCurrentImageContext() {
            UIGraphicsEndImageContext()
            image = screenshot
        } else {
            assertionFailure("Unable to make a screenshot for the scene \(type(of:scene))")
        }
        completion!(SKTexture(image: image))
    }
    let wait = SKAction.wait(forDuration: duration)
    let seq = SKAction.sequence([wait,action])
    scene.run(seq,withKey:"getScreenshot")
}

Usage:

getScreenshot(scene: self, completion:{ (txt) -> Void in
            let thumbNode = SKSpriteNode(texture: txt, size:CGSize(width:300,height:224))
            // do whatever you want with your screenshot..
}