A mind map showing the inheritance relationships of all open classes in iOS

Recently, I’d like to see all the open classes of iOS SDK. Scattered resources are found on the internet. So manually write a piece of code to analyze.

It took me half a day to get it done. The final result is mind mapping. The
generation tool is a Baidu brain map”

Partial screenshot:

A mind map showing the inheritance relationships of all open classes in iOS
screen snapshot 2017-08-08 a.m. 11.59.33.png

Mind map file:
https://pan.baidu.com/s/1hrVvZ4w
Baidu brain map view:
http://naotu.baidu.com/file/a2b0a8189c2876f2db4e474f580e3e4c token=298c9c910e1b341c?

A mind map showing the inheritance relationships of all open classes in iOS
screen snapshot 2017-08-08 PM 6.26.02.png