Learning CA

Hello everyone
I am an independent Apple developer.
Recently, when I was working on the project, I found that the parameters of the Core Animation API were really too many, and I didn't understand the effect of each parameter. It was difficult for me to quickly find the one parameter I needed, which made me very angry.
Finally, I made this app and explored most of the features of Apple's Core Animation API.
The entire app includes:
● CALayer
● CAScrollLayer
● CATextLayer
● AVAudioPlayer
● CAGradientLayer
● CAReplicatorLayer
● CATiledLayer
● CAShapeLayer
● CAEAGLLayer
● CATransformLayer
● CAEmitterLayer
I have set Apple native controls for each category, you can directly manipulate the properties of the class and observe the effect.
It is an app that is very friendly to Apple novice developers and hopes to help you.
Thank you for your use.