Activity start (launchactivity/startactivity)_ (1)_ WMS of flow chart

1. Activity Start process
   

2. WMS And AMS The relationship between
   

3. View Hierarchical structure
   
   IWindowSession yes Binder Realize communication in process .
   The bridge mode is used here , WindowManager It's a bridge , UI(Activity) Only responsible for the displayed content ,WMS Be responsible for forwarding the actual operation to the bottom

4. Drawing process ( That is to say View The creation process of )
   
   important ,Activity Life cycle of . Activity.onResume It's just a small part ！！！
   
   View Refresh the process