Material Design实战

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##Material Design简介

Material Design是谷歌设计师基于传统的设计原则，结合丰富的创意和科学技术所发明的一套全新的界面设计语言，包含了视觉、运动、互动效果等特性

##Toolbar

创建项目时，默认显示ActionBar。我们用Toolbar来代替ActionBar，因此需要指定一个不带ActionBar的主题

有两种：

• Theme.AppCompat.NoActionBar:深色主题，将界面主体颜色设成深色，陪衬颜色设为淡色
• Theme.AppCompat.Light.NoActionBar:淡色主体，将界面主体颜色设成淡色，陪衬颜色设为深色

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">

<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"/>

</LinearLayout>

MainActivity.java

package com.zhoujian.materialdesign;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity
{

@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(toolbar);

}

@Override
public boolean onCreateOptionsMenu(Menu menu)
{
getMenuInflater().inflate(R.menu.toolbar,menu);
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {

switch (item.getItemId()) {
case R.id.backup:
Toast.makeText(this, "按钮被点击了", Toast.LENGTH_SHORT).show();
break;
case R.id.delete:
Toast.makeText(this, "按钮被点击了", Toast.LENGTH_SHORT).show();
break;
case R.id.settings:
break;

default:
}
return true;
}
}

##DrawerLayout

DrawerLayout是一个布局，可以直接放入两个直接子控件，第一个是主屏幕的内容，第二个是滑动菜单中的内容

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">

<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/>

</FrameLayout>

<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#fff"
android:text="menu菜单"/>
</android.support.v4.widget.DrawerLayout>

MainActivity.java

package com.zhoujian.materialdesign;

import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity
{

private  Toolbar toolbar;
private   DrawerLayout  mDrawerLayout;

@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);
ActionBar mActionBar = getSupportActionBar();

if(mActionBar!=null)
{
mActionBar.setDisplayHomeAsUpEnabled(true);
mActionBar.setHomeAsUpIndicator(R.mipmap.ic_menu);
}
}

@Override
public boolean onCreateOptionsMenu(Menu menu)
{
getMenuInflater().inflate(R.menu.toolbar,menu);
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {

switch (item.getItemId()) {

case android.R.id.home:
mDrawerLayout.openDrawer(GravityCompat.START);
break;
case R.id.backup:
Toast.makeText(this, "按钮被点击了", Toast.LENGTH_SHORT).show();
break;
case R.id.delete:
Toast.makeText(this, "按钮被点击了", Toast.LENGTH_SHORT).show();
break;
case R.id.settings:
break;

default:
}
return true;
}
}

##NavigationView

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">

<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/>

</FrameLayout>

<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
app:headerLayout="@layout/nav_header"
app:menu="@menu/nav_menu" />

</android.support.v4.widget.DrawerLayout>

MainActivity.java

package com.zhoujian.materialdesign;

import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity
{

private  Toolbar toolbar;
private   DrawerLayout  mDrawerLayout;

private NavigationView mNavigationView;

@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);
ActionBar mActionBar = getSupportActionBar();

if(mActionBar!=null)
{
mActionBar.setDisplayHomeAsUpEnabled(true);
mActionBar.setHomeAsUpIndicator(R.mipmap.ic_menu);
}

mNavigationView = (NavigationView)findViewById(R.id.nav_view);


mNavigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {

mDrawerLayout.closeDrawers();

return true;
}
});

}

@Override
public boolean onCreateOptionsMenu(Menu menu)
{
getMenuInflater().inflate(R.menu.toolbar,menu);
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {

switch (item.getItemId()) {

case android.R.id.home:
mDrawerLayout.openDrawer(GravityCompat.START);
break;
case R.id.backup:
Toast.makeText(this, "按钮被点击了", Toast.LENGTH_SHORT).show();
break;
case R.id.delete:
Toast.makeText(this, "按钮被点击了", Toast.LENGTH_SHORT).show();
break;
case R.id.settings:
break;

default:
}
return true;
}
}

##FloatingActionButton:悬浮按钮

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">

<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/>


<!--elevation:指定悬浮高度，高度越大，投影效果越谈-->
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="16dp"
app:elevation="5dp"
android:src="@mipmap/ic_done" />

</FrameLayout>

<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
app:headerLayout="@layout/nav_header"
app:menu="@menu/nav_menu" />

</android.support.v4.widget.DrawerLayout>

MainActivity.java

package com.zhoujian.materialdesign;

import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity
{

private  Toolbar toolbar;
private   DrawerLayout  mDrawerLayout;

private NavigationView mNavigationView;

@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);
ActionBar mActionBar = getSupportActionBar();

if(mActionBar!=null)
{
mActionBar.setDisplayHomeAsUpEnabled(true);
mActionBar.setHomeAsUpIndicator(R.mipmap.ic_menu);
}

mNavigationView = (NavigationView)findViewById(R.id.nav_view);


mNavigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {

mDrawerLayout.closeDrawers();

return true;
}
});




FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view)
{
Toast.makeText(MainActivity.this, "悬浮按钮被点击了", Toast.LENGTH_SHORT).show();

}
});

}

@Override
public boolean onCreateOptionsMenu(Menu menu)
{
getMenuInflater().inflate(R.menu.toolbar,menu);
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {

switch (item.getItemId()) {

case android.R.id.home:
mDrawerLayout.openDrawer(GravityCompat.START);
break;
case R.id.backup:
Toast.makeText(this, "按钮被点击了", Toast.LENGTH_SHORT).show();
break;
case R.id.delete:
Toast.makeText(this, "按钮被点击了", Toast.LENGTH_SHORT).show();
break;
case R.id.settings:
break;

default:
}
return true;
}
}

##CoordinatorLayout

CoordinatorLayout是一个加强版的FrameLayout

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">

<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/>


<!--elevation:指定悬浮高度，高度越大，投影效果越谈-->
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="16dp"
app:elevation="5dp"
android:src="@mipmap/ic_done" />

</android.support.design.widget.CoordinatorLayout>

<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
app:headerLayout="@layout/nav_header"
app:menu="@menu/nav_menu" />

</android.support.v4.widget.DrawerLayout>

MainActivity.java

package com.zhoujian.materialdesign;

import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.NavigationView;
import android.support.design.widget.Snackbar;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity
{

private  Toolbar toolbar;

private   DrawerLayout  mDrawerLayout;

private NavigationView mNavigationView;

@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar)findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);
ActionBar mActionBar = getSupportActionBar();

if(mActionBar!=null)
{
mActionBar.setDisplayHomeAsUpEnabled(true);
mActionBar.setHomeAsUpIndicator(R.mipmap.ic_menu);
}

mNavigationView = (NavigationView)findViewById(R.id.nav_view);


mNavigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {

mDrawerLayout.closeDrawers();

return true;
}
});




FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view)
{
//Toast.makeText(MainActivity.this, "悬浮按钮被点击了", Toast.LENGTH_SHORT).show();

Snackbar.make(view, "你好！", Snackbar.LENGTH_SHORT)
.setAction("发送", new View.OnClickListener()
{
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this, "消息已发送！", Toast.LENGTH_SHORT).show();
}
}).show();
}
});

}

@Override
public boolean onCreateOptionsMenu(Menu menu)
{
getMenuInflater().inflate(R.menu.toolbar,menu);
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {

switch (item.getItemId()) {

case android.R.id.home:
mDrawerLayout.openDrawer(GravityCompat.START);
break;
case R.id.backup:
Toast.makeText(this, "按钮被点击了", Toast.LENGTH_SHORT).show();
break;
case R.id.delete:
Toast.makeText(this, "按钮被点击了", Toast.LENGTH_SHORT).show();
break;
case R.id.settings:
break;

default:
}
return true;
}
}

##CardView

用于实现卡片式布局效果，可以实现圆角和阴影效果，看上去有立体的效果。

picture_item.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
app:cardCornerRadius="4dp">

<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">

<ImageView
android:id="@+id/picture_image"
android:layout_width="match_parent"
android:layout_height="250dp"
android:scaleType="centerCrop" />

<TextView
android:id="@+id/picture_name"
android:layout_width="wrap_content"
android:paddingTop="15dp"
android:paddingBottom="15dp"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_margin="5dp"
android:textSize="16sp" />
</LinearLayout>

</android.support.v7.widget.CardView>

实现的效果：

每一个item都是一个CardView

##AppBarLayout

AppBarLayout实际上是一个线性布局，内部封装了很多的滚动事件

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">

<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">

<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">

<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:layout_scrollFlags="scroll|enterAlways|snap" />
</android.support.design.widget.AppBarLayout>

<android.support.v4.widget.SwipeRefreshLayout
android:id="@+id/swipe_refresh"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior">

<android.support.v7.widget.RecyclerView
android:id="@+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</android.support.v4.widget.SwipeRefreshLayout>

<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="16dp"
android:src="@mipmap/ic_done" />
</android.support.design.widget.CoordinatorLayout>



<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
app:headerLayout="@layout/nav_header"
app:menu="@menu/nav_menu" />

</android.support.v4.widget.DrawerLayout>

将Toolbal放在了AppBarLayout里面，然后在RecycleView对应的下拉刷新控件中使用了 app:layout_behavior=”@string/appbar_scrolling_view_behavior”这个属性，appbar_scrolling_view_behavior这个字符串是由Design库提供的。

当AppBarLayout接收到滚动事件时，它内部的子控件可以指定如何去影响这些事件，通过app:layout_scrollFlags属性就能实现。
app:layout_scrollFlags=”scroll|enterAlways|snap”

scroll：表示当RecycleView向上滚动的时候，Toolbar会随着一起向上滚动并实现隐藏

enterAlways：表示当RecycleView向下滚动的时候，Toolbar会随着一起向下滚动并重新显示

snap：表示当Toolbar还没有完全隐藏或显示的时候，会根据当前滚动的距离，自动选择隐藏还是显示。

##CollapsingToolbarLayout

CollapsingToolbarLayout是一个作用于Toolbar基础之上的布局，CollapsingToolbarLayout是不能独立存在的，只能作为AppBarLayout的直接子布局来使用，AppBarLayout又必须是CoordinatorLayout的子布局

activity_picture.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">

<android.support.design.widget.AppBarLayout
android:id="@+id/appBar"
android:layout_width="match_parent"
android:layout_height="300dp"
android:fitsSystemWindows="true">

<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed">

<ImageView
android:id="@+id/image_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax" />

<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>

<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior">

<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">

<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="15dp"
android:layout_marginLeft="15dp"
android:layout_marginRight="15dp"
android:layout_marginTop="35dp"
app:cardCornerRadius="4dp">

<TextView
android:id="@+id/fruit_content_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="16sp"
android:text="@string/content"
android:layout_margin="5dp" />
</android.support.v7.widget.CardView>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>

<android.support.design.widget.FloatingActionButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="16dp"
android:src="@mipmap/ic_comment"
app:layout_anchor="@id/appBar"
app:layout_anchorGravity="bottom|end" />
</android.support.design.widget.CoordinatorLayout>

实现的效果：

##总结

以上就是关于Material Design实战的内容，最后给出一个完整的demo

Demo的效果：

##源码下载：

源码下载：https://github.com/zeke123/MaterialDesign