Android Layouts

Introduction

View Hierarchy can be split into types types

• Margin is the space around the widget
• Padding is the space within the widget
• Gravity is the position of the widget within the widget its self
• Layout Gravity is the position of the widget within its parent

Here shows the difference between layout_gravity and gravity.

Layouts

Linear

These are like rows and columns in flex box. Items are wapped.

Weight

Weight determines the distribution of the widgets when no width or height is provided. Here the weight adds up to 3 and therefore the ratio is 1:2

FrameLayout

This allows you to put a layout on top of another. E.g. you want of put text on top of a picture.

Coordinated

Intended for two primary use cases

• As a top level application decor or chrome-layout
• As a container for a specific interaction
  • With its child views
  • Between its child views

This can be used as parent which will allow other components such as the FAB button to move when the SnackBar appears.