Layout

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Layout, Android Jetpack UI Components, Lay out widgets using different algorithms

A layout defines the user interface structure in your app, like activity. A layout is built using View and ViewGroup Objects.

A View is Visible to user, such as EditView, TextView, A ViewGroup is invisible and it is a container object that defines layout structure for View(s) and can include sub ViewGroup in it.

A View is refereed as "widgets", and ViewGroup is refereed as "layouts"

View Examples

• EditView
• TextView
• Button

ViewGroup Examples

• LinearLayout
• RelativeLayout
• ConstraintLayout

View and ViewGroup can be created in your app in 2 ways.

• Declare UI elements in XML
• Programmatically