Constraints Buttons on LayerView AutoLayout

Question

I am trying to successfully align 2 UIButton laying on TOP of a layerView .

The hierarchy is as following:

The Buttons lay just on top of the layerView (Just a UIView which is black and has a certain alpha). Now I want the buttons to align within this "container".

Like this:

I was setting the constraints to the left and top + to the right and top. also kept aspect ratio.

This was the result:

So it is just the buttons making problems. Anyone knows another way of solving this?

Answer 1

尝试将图层和按钮都放在父UIView ，然后让图层填充该视图，并使按钮在其中垂直居中。

Answer 2

1. Embed the buttons inside a UIView
2. Set the UIView to have fixed width and height
3. Set UIView to horizontally align to Center.
4. since the "Layer View" has a dynamic height, set the UIView's bottom space to "Layer View"