AVCaptureVideoPreviewLayer (camera preview) freezes/stuck after moving to background and back

Question

Cant figure this one out. Everything works fine when the app is active, and than sometimes when i move the app to the background(pressing the home button) a

Answer 1

Just a quick update In 2017 if someone suffering overthinking such that thing,

Do the same thing but change your

stillImageOutput!.outputSettings = [AVVideoCodecKey: AVVideoCodecJPEG]

replace it with

stillImageOutput!.outputSettings = [((kCVPixelBufferPixelFormatTypeKey as NSString) as String):NSNumber(value:kCVPixelFormatType_32BGRA)]

it will solve the issue. If not, then come back here and write down :))