Swift UIView Shadow仅适用于iPhone5

Question

I am trying to add a shadow under my uivew. It works on a Iphone 5 but the shadow only gets applied 2/3 of the views lenght when trying on a iphone 6 plus.

code:

myView.layer.shadowColor = UIColor.blackColor().CGColor
        myView.layer.shadowOpacity = 1
        myView.layer.shadowRadius = 5
        myView.layer.shadowPath = UIBezierPath(rect: CGRect(x: 0, y: 0, width: myView.frame.width, height: myView.frame.height)).CGPath

The constraints of the view is:

Height: 41

Leading to superview: 0

Trailing to superview: 0

Answer 1

You're applying your shadow before layout has completed as @Tommy mentioned in the comments.

Move your code from your viewDidLoad to your viewDidLayoutSubviews .

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var myView: UIView!

    override func viewDidLoad() {
        super.viewDidLoad()
    }

    override func viewDidLayoutSubviews() {
        myView.layer.shadowColor = UIColor.blackColor().CGColor
        myView.layer.shadowOpacity = 1
        myView.layer.shadowRadius = 5
        myView.layer.shadowPath = UIBezierPath(rect: CGRect(x: 0, y: 0, width: myView.frame.width, height: myView.frame.height)).CGPath
    }

Also, have you set a Y constraint on your view? I'd imagine you'd want to pin it to the top of your Superview .