Knowledge Tree-talk Android (20,190,819)

1. Androd request in the network, if the network after completion callback request, activity has been recovered, and how to deal with?

Examine knowledge:

• acitvity view relationships and life cycle & Memory Model
• How to prevent memory leaks (weak references, cancel and request a callback)

 Solving knowledge:

• activity view life cycle  https://www.jianshu.com/p/0a4cb44ce9d1
• acitvity view window relationship  https://blog.csdn.net/freekiteyu/article/details/79408969
• Role of Context  https://www.cnblogs.com/tsingke/p/9127758.html
• Weak references experiment

　　　The default view held by activity (content) references, activity can be finish, but not destroyed;

         mvp p can be held view by weak reference solve network problems return;

• kotlin cancel the callback process implemented by the Association (binding activity life cycle )

        In experiment...