remove all subLayers from a view

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

[self.view.layer addSublayer:layer1];
[self.view.layer addSublayer:layer2];

....

I would like to remove all sublayers with an action. I already tried with this suggestion of a similar question:

rootLayer.sublayers = nil;

but it doesn't work...

Could you help me? Than you!

The sublayers property of a CALayer object returns a copy of the array. Setting it no nil does nothing about the sublayers. This however will do:

for (CALayer *layer in self.view.layer.sublayers) {
    [layer removeFromSuperlayer];
}

Or, in Swift

self.view.layer.sublayers?.forEach { $0.removeFromSuperlayer() }

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()

This worked for me and fixed the crash:

[self.view.layer.sublayers makeObjectsPerformSelector:@selector(removeFromSuperlayer)]

I changed the view with my image UImageview, and the crash is gone.

Swift 2.0:

	for layer: CALayer in self.view.layer.sublayers! {
		layer.removeFromSuperlayer()
	}

or

	self.view.layer.performSelector("removeFromSuperlayer")

Swift 5:

You can either remove the layer itself or iterate through them and do the following:

layer.removeAllAnimations()
layer.removeFromSuperlayer()

For swift5 to remove CAShapeLayer from added view

guard let sublayers = self.view.layer.sublayers else { return }

for sublayer in sublayers where sublayer.isKind(of: CAShapeLayer.self) {
        sublayer.removeFromSuperlayer()
}

Swift 4.1

self.view.layer.sublayers?.removeAll()

or if in a UIView sub-class just

layer.sublayers?.removeAll()

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.

Simple one liner in SWIFT 4.

self.view.layer.sublayers.removeAll()