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 5:

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

layer.removeAllAnimations()
layer.removeFromSuperlayer()

Answer 2

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.

Answer 3

Swift 4.1

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

or if in a UIView sub-class just

layer.sublayers?.removeAll()

Answer 4

Swift 2.0:

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

or

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

Answer 5

For swift5 to remove CAShapeLayer from added view

for layer in self.view.layer.sublayers! {
   if layer.isKind(of: CAShapeLayer.self) {
      layer.removeFromSuperlayer()
   }
}

Answer 6

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() }