CALayer and UIView display order

I have a CATiledLayer within a UIView and the UIView also contains a subview. How can I make sure that the subview is alw开发者_如何学JAVAays drawn above the layer?

Most of the time I get the tile layer covering the subview.

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By default all layers (hence views) added in the last are drawn on the top. You can change the default with -insertSublayer:below: and similar methods:

 [view.layer insertSublayer:tiledLayer below:thatSubview.layer]