A picture is worth a thousand words~
This is a summary based on the analysis of online experts and reading some source code. Because I didn’t have a comprehensive understanding of the whole process at that time, I wanted to make a diagram myself. It would look more straightforward, and maybe it would give me a better understanding and a deeper impression. Then go to ProcessOn and get a picture!
It is also because other places are equipped with some small codes, so I have not included the code here, just to give you an overall understanding, so it is better to use it in conjunction with other tutorials~
I still have a shallow understanding of its core. Because my grasp of the process is not very precise, there must be errors, and I sincerely hope you can point them out.
I will continue to correct the errors and provide more detailed analysis in the future.
If you need to reprint, please indicate my name AnnsShadoW and the address of this article http://www.cnblogs.com/annsshadow/p/4999418.html, thank you~