The relationship between Activity,window,view in Android

Activity: Control Unit

window: Hosting Model

View: Show views

Several small tip:

1, an Activity structure must construct a Window (Phonewindow), and there is only one

2, each window has a viewroot (is a view or viewgroup)

3. Add elements to the window through the AddView Method of window.

4, through the Layoutinflater Inflater method, you can convert a layout file into a View object

5, click on the interface and other operations are received by Windowmanagerservice message, and then callback Activity function to handle

The relationship between Activity,window,view in Android