"Android Learning Note 2" UI Basics &view&&viewgroup

Towering high-rise, the most intuitive person in the development of Android also believes that the most task is the development of the UI.

So what do users see at the front desk?

Yes, it's activity!.

Activity is just a form, and what is actually shown to the user is view.

If a person familiar with web development understands the concept of MVC. This view is the V-level, which shows the user what to see.

Also used to interactively produce model data for the controller to handle.

View in Android is the base class for all UI components, with ViewGroup subclasses, typically used as containers for each view component

Common layout as we are familiar with:

Linearlayout,relativelayout,gridlayout,framelayout,absolutelayout

And its commonly used sub-class Tablelayout

"Android Learning Note 2" UI Basics &view&&viewgroup