remove all subLayers from a view

Question

In an animation I added a lot of sublayers to a view, with:

[self.view.layer addSublayer:layer1];
[self.view.layer addSublayer:         


        

Answer 1

Swift 3.0 & Swift 4.0

Set the sublayers property to nil to remove all sublayers from a view.

view.layer.sublayers = nil

also you can add

.removeAll()

Answer 2

Simple one liner in SWIFT 4.

self.view.layer.sublayers.removeAll()

Answer 3

If you want to delete all sublayers and add a new one, you can easily do:

rootLayer.sublayers = [layer1] // adding one layer

rootLayer.sublayers = [layer1, layer2, ...] // adding two or more layers

This could be helpful, if you work with tableview or collectionview cells. You don't need to call prepareForReuse for removing the sublayers.