android material design 相关使用指导

来源:https://guides.codepath.com/android/Design-Support-Library#features

Design Support Library

Overview

At their I/O 2015 conference, Google announced a new
design support library, which helps bring a lot of
material design components including a navigation drawer view, floating labels, floating action buttons, snackbars, and a new framework to tie motion and scroll events. The library is supported for Android version 2.1 and higher.



(总结就是在2015年谷歌宣布了开发支持库Material Design，库里包含很多新的特性和控件，支持android版本最低2.1)

Features

The support design library has the following key features:

FloatingActionButton - A round button at the bottom right denoting a primary action on your interface. Promoting key actions within a modern
material design app.
TabLayout - An easier way to put tabs around a

ViewPager

which acts as sliding tabs between fragments within an app.
NavigationView - An easier way to provide a modern navigation drawer from the left with a header and a series of navigation items.

SnackBar - Shown on the bottom of the screen and contains text with an optional single action. They automatically time out after the given
time length by animating off the screen.
TextInputLayout - Float the hint above any text field as the user is entering information and/or add
a character counter.
CoordinatorLayout - Provides an additional level of control over scroll and touch events between child views.
AppBarLayout allows your toolbar and other views to react to scroll events.

CollapsingToolbarLayout extend this to allow the toolbar to collapse as the user scrolls through a view.

PercentRelativeLayout and PercentFrameLayout to enable views to occupy

percentage-based dimensions.
（关键特性：1，悬浮动态按钮2，标签布局3，导航视图4，(不好翻译，小吃栏...)快捷栏5，文本输入布局6，协调布局7，百分比布局）

Setup

Make sure that you have at least the Android Gradle plugin v1.2.3 supported:

dependencies {
classpath 'com.android.tools.build:gradle:1.3.1'
}

There is a new support design library that must be included. This library also depends on updated versions of the

AppCompat library to be included. If you are not currently using this library, check out this

migration guide. In addition, make sure these versions have been updated.

(要有较新的gradle构建工具)

Update your root

build.gradle

file

android {
compileSdkVersion 23  // needs to be consistent with major support libs used
}

ext {
supportLibVersion = '23.1.1'  // variable that can be referenced to keep support libs consistent
}

Add these dependencies to your

app/build.gradle

file:

dependencies {
compile "com.android.support:appcompat-v7:${supportLibVersion}"
compile "com.android.support:design:${supportLibVersion}"
}

If you are using the
RecyclerView,
CardView, or any other
support v7 related libraries you should also upgrade the versions. The RecyclerView for instance has features that are used with this new design support library.

dependencies {
compile "com.android.support:recyclerview-v7:${supportLibVersion}"
}

Adding Percent Support Library

To add the percent support library, you need to add this statement:

dependencies {
compile "com.android.support:percent:${supportLibVersion}"
}

Adding Annotations Library

To leverage the
annotations library, you can also explicitly add it to your Gradle file. Adding the

AppCompat or support design library implicitly adds it:

dependencies {
compile "com.android.support:support-annotations:${supportLibVersion}"
}

(根据需要添加依赖项)

Installing the Library

You normally need to open the
SDK Manager and make sure to download the

Android Support Repository

as well as the latest

Android Support Library

. However, Android Studio will also show at the bottom any missing libraries and you can click on the

Install repository and sync project

. The process will only succeed if you specify a valid library and version, but it enables you to upgrade without needing to open the SDK Manager.



If you are using any type of continuous build system and need to help automate downloading of updates to the support library, you can use

Jake Wharton's SDK Manager to download the packages for you.

Sample Code

If you want to see how to use the various components, check out this
sample code. For an example of the percent support library, see
this sample code.

Official Source Code

The Android Open Source Project (AOSP) hosts the major release versions for this library, which can be found

here. For instance, if you are curious about what styles can be overridden for the different components, see this

link.

The latest source code updates for the support library are now always included since v23.1.0 in your SDK directory (i.e.

Library/Android/sdk/extras/android/m2repository/com/android/support/design

for Mac OS X).

Change Log

Changes in Support Library v23

Resources.getColor()

has been deprecated. You must now use

ContextCompat.getColor()

instead. See this
Stack Overflow article or the official
API documentation.

Changes in Support Library v23.1

TextInputLayout

and

EditText

now includes the ability to add a character counter. (view guide)

A

snap

flag can also be added to the list of scrolling effects declared in

AppBarLayout

. (view guide)

A

setOnDragListener()

method has been added to

App
ab5c
BarLayout

. (view
guide)

An

aspectRatio

attribute is now supported in

PercentRelativeLayout

. (view guide)

A new item animation interface for the

RecyclerView

. (view guide)

Custom views can be provided for

NavigationView

rows. (view guide)

Changes in Support Library v23.1.1

NavigationView now contains a

getHeaderView()

method (view guide)