In iOS, you can use
UIBezierPath to draw vector-based paths and use these paths to create shapes. With
UIBezierPath, you can draw lines, curves, ovals, ellipses, and any complex shapes by combining them with subpaths. In this section, we will see how to create paths with
UIBezierPath and build shape layers to animate them.
In the upcoming demo, we will draw a custom circular progress bar that can be animated with a percentage given like 50%, 80%, and so on.
Let's create a new Xcode project with the Single View Application template with the name
The circular progress bar will consist of two layers: a fixed layer that will be added as a background for the progress bar and a progressive layer that will be animated.
Now let's create a function that creates a circular layer so that we can reuse it for both layers. Add the following function in
private func getShapeLayerForRect(rect:CGRect,...