Add CALayer below UIView

Question

I got a UIView (let's call it superview) which contains another UIView (lets call it subview).

I'd like to add a CALayer so that it is visible on top of my superview, but under my subview. In other words, my subview's background should override the layer.

I've had a look at addLayer:below: and others, but I'm not sure how to use it. Thanks.

EDIT: My bad, I had another view between superview and subview, and I was messing with it. Thanks guys !

Solution 1

[self.view.layer insertSublayer:CALayer below:subview.layer]

Solution 2

In Swift:

self.view.layer.insertSublayer(self.avPlayerLayer, below: self.button1.layer)

Solution 3

A more general solution where you don't have access to the subviews:

layer.insertSublayer(sublayer, at: 0)

Comments

[DCMaxxx]

My bad, I had another view between superview and subview, and I was messing with it. This works like a charm. Thanks !

[Eugene P]

The answer is not correct enough. You do not need to insert you CALayer. Because if you add sublayer to your super view, this layer will definitely be under any subview of this superview.

[Dima Deplov]

what if we haven't self.button1.layer in self.view.layer.subalayers? If you know the answer please let me know

[King-Wizard]

Let me know @flinth if my comment above helped you to fix your problem and do not forget to put a +1 for this answer.

[Dima Deplov]

unfortunately not. I know these methods. Look at my question please. stackoverflow.com/questions/30564635/…

[King-Wizard]

@flinth I just answered your question.