Material Design 学习笔记-- Layout->Structure

Structure
包括：
UI regions
Toolbars
App bar
System bars
Side nav

Whiteframes

Mobile structure

Top left to right: Side nav, app bar/primary toolbar, content area (below the app bar/primary toolbar), and right nav

On the bottom: bottom bar

https://material.io/guidelines/layout/structure.html

设计界面布局时，可参考。