UI Layout

Topics

What is Layout & How to declare Layout ?
Layout File structure and location
Attributes
- ID
- Layout parameters
Types of Layout
- LinearLayout
- RelativeLayout
- TableLayout
- FrameLayout
- Tab layout

What is a Layout & How to declare a Layout?

What is a Layout?

It defines the layout structure for the user interface in an Activity
It holds all the visual elements that appear to the user

How to declare a Layout?

Two Options

Option #1: Declare layout and its visual elements in XML (most common and preferred)
Option #2: Instantiate a layout and its visual elements at runtime (programmatically in Java code)

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