Draw iOS 7-style squircle programmatically

Question

I\'m trying to find a way to draw a iOS 7-style icon \'squircle\' shape programmatically, using core graphics. I\'m not asking how to draw a rounded rectangle

Answer 1

in iOS 13/ Xcode 11 you can now use CALayerCornerCurve

Example

yourLayer.cornerCurver = CALayerCornerCurve.continuous

source: https://developer.apple.com/documentation/quartzcore/calayercornercurve