How to save screenshot of a view with its subviews in Swift?
calayer, ios, screen-capture, swift, uiview
Solution
This is working for me,
func screenShotMethod() {
//Create the UIImage
UIGraphicsBeginImageContext(faceTrackerContainerView.frame.size)
faceTrackerContainerView.layer.renderInContext(UIGraphicsGetCurrentContext()!)
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
//Save it to the camera roll
UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil)
}
Ref
Problem
I want to capture a view with its subviews. I'm using this code to capture the screen: ``` let view = self.faceTrackerContainerView UIGraphicsBeginImageContext(CGSizeMake(view.bounds.size.width, view.bounds.size.height)) UIGraphicsGetCurrentContext()! self.view?.drawViewHierarchyInRect(view.frame, afterScreenUpdates: true) let screenshot = UIGraphicsGetImageFromCurrentImageContext() UIGraphicsEndImageContext() UIImageWriteToSavedPhotosAlbum(screenshot, nil, nil, nil) ``` These codes capture the whole screen including a button that's in front of the view. I tried these codes but it only captures the main view excluding its subviews: ``` let view = self.faceTrackerContainerView let scale = UIScreen.mainScreen().scale UIGraphicsBeginImageContextWithOptions(view.bounds.size, false, scale); view.layer.renderInContext(UIGraphicsGetCurrentContext()!) let screenshot = UIGraphicsGetImageFromCurrentImageContext() UIGraphicsEndImageContext() UIImageWriteToSavedPhotosAlbum(screenshot, nil, nil, nil) ``` I also tried the `snapshotViewAfterScreenUpdates(true)` from here but I don't know how to implement it. I have a collectionView below the view and a button on top of the view (both are not in the view). The first codes capture everything with the button, collectionView, and subviews. The second codes capture the view without the subviews. What am I missing?