Design User Interface In Java | Class, Object | Create a Simple User Interface part 3

UI screen components
A typical user interface of an android application consists of action bar and the application content area.

Main Action Bar
View Control
Content Area
Split Action Bar

Understanding Screen Components
The basic unit of android application is the activity. A UI is defined in an xml file. During compilation, each element in the XML is compiled into equivalent Android GUI class with attributes represented by methods.

View and ViewGroups
An activity is consist of views. A view is just a widget that appears on the screen. It could be button e.t.c. One or more views can be grouped together into one GroupView. Example of ViewGroup includes layouts.

Types of layout
There are many types of layout. Some of which are listed below −

Linear Layout
Absolute Layout
Table Layout
Frame Layout
Relative Layout

Видео Design User Interface In Java | Class, Object | Create a Simple User Interface part 3 канала Masood Tech