如何使y轴上的cameraOverlayView（swift3）

Question

I am making a photo app that I want the imagePicker screen to have blocks of red to pre mask the photo before it crops. My following code gets a roadblock on the top x axis. I would like to place another red box along the entire y axis where the yellow rectangle is.

    let blockView = UIView.init(frame: CGRect.init(x: 0, y: 0, width: self.view.frame.size.width, height: 150))

           blockView.backgroundColor = UIColor.red

    imagePicker.cameraOverlayView = blockView

Answer 1

Please try the following :

let mainView = UIView.init(frame: CGRect.init(x: 0, y: 0, width: self.view.frame.size.width, height: self.view.frame.size.height-150))

let blockView = UIView.init(frame: CGRect.init(x: 0, y: 0, width: self.view.frame.size.width, height: 150))
blockView.backgroundColor = UIColor.red

let blockView1 = UIView.init(frame: CGRect.init(x: 0, y: 170, width: 100, height: self.view.frame.size.height-320))
blockView1.backgroundColor = UIColor.green

mainView.addSubview(blockView)
mainView.addSubview(blockView1)

imagePicker.cameraOverlayView = mainView