swift - layer cannot be modified in NSCollectionViewItem -


i subclassed nscollectionviewitem , want modify layer of view, can't work.

override func awakefromnib() {     self.view.layercontentsredrawpolicy = nsviewlayercontentsredrawpolicy.onsetneedsdisplay     self.view.layer!.backgroundcolor = nscolor.whitecolor().cgcolor     self.view.layer!.bordercolor = nscolor.blackcolor().cgcolor     self.view.layer!.borderwidth = 3     self.view.updatelayer() }

i activated core layer animation in ib of every single view in project, still no change. how can make changes views layer?


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