Material Design 实战

BessieKraus 4年前
   <h2>Material Design简介</h2>    <p>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</p>    <h2>Toolbar</h2>    <p>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</p>    <p>有两种:</p>    <ul>     <li>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</li>     <li>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</li>    </ul>    <p>activity_main.xml</p>    <pre>  <code class="language-java"><?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></code></pre>    <p>MainActivity.java</p>    <pre>  <code class="language-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;      }  }</code></pre>    <p style="text-align:center"><img src="https://simg.open-open.com/show/a6bf44c4ab960ca2f2bbee7a0014e63f.png"></p>    <h2>DrawerLayout</h2>    <p>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</p>    <p>activity_main.xml</p>    <pre>  <code class="language-java"><?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></code></pre>    <p>MainActivity.java</p>    <pre>  <code class="language-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;      }  }</code></pre>    <p style="text-align:center"><img src="https://simg.open-open.com/show/9298f90894d1dae390728f5456541d23.gif"></p>    <h2>NavigationView</h2>    <p>activity_main.xml</p>    <pre>  <code class="language-java"><?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></code></pre>    <p>MainActivity.java</p>    <pre>  <code class="language-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;      }  }</code></pre>    <p style="text-align:center"><img src="https://simg.open-open.com/show/80322d29fa27ce87f6d5e2eadf433cd7.gif"></p>    <h2>FloatingActionButton:悬浮按钮</h2>    <p>activity_main.xml</p>    <pre>  <code class="language-java"><?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></code></pre>    <p>MainActivity.java</p>    <pre>  <code class="language-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;      }  }</code></pre>    <p style="text-align:center"><img src="https://simg.open-open.com/show/005d31891cfcd04714a039026485d798.png"></p>    <h2>CoordinatorLayout</h2>    <p>CoordinatorLayout是一个加强版的FrameLayout</p>    <p>activity_main.xml</p>    <pre>  <code class="language-java"><?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></code></pre>    <p>MainActivity.java</p>    <pre>  <code class="language-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;      }  }</code></pre>    <p style="text-align:center"><img src="https://simg.open-open.com/show/14cf4e708e2eb6ca4cd70739c7697d6b.png"></p>    <h2>CardView</h2>    <p>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。</p>    <p>picture_item.xml</p>    <pre>  <code class="language-java"><?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></code></pre>    <p>实现的效果:</p>    <p style="text-align:center"><img src="https://simg.open-open.com/show/fd15f8ce8d7dc0e3c627d073c43680a5.png"></p>    <p>每一个item都是一个CardView</p>    <h2>AppBarLayout</h2>    <p>AppBarLayout实际上是一个线性布局,内部封装了很多的滚动事件</p>    <p>activity_main.xml</p>    <pre>  <code class="language-java"><?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></code></pre>    <p>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。</p>    <p>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。</p>    <p>app:layout_scrollFlags="scroll|enterAlways|snap"</p>    <p>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</p>    <p>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</p>    <p>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。</p>    <p style="text-align:center"><img src="https://simg.open-open.com/show/90c0790056ba228ea6cd80a521ac04c7.gif"></p>    <h2>CollapsingToolbarLayout</h2>    <p>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</p>    <p>activity_picture.xml</p>    <pre>  <code class="language-java"><?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></code></pre>    <p>实现的效果:</p>    <p style="text-align:center"><img src="https://simg.open-open.com/show/e98bced87b26dc02083d0c1af5538ea8.gif"></p>    <h2>总结</h2>    <p>以上就是关于Material Design实战的内容,最后给出一个完整的demo</p>    <p>Demo的效果:</p>    <p style="text-align:center"><img src="https://simg.open-open.com/show/c083d716ea431e4dd910916a640975fa.gif"></p>    <p> </p>    <h2> </h2>    <p> </p>    <p>来自:https://juejin.im/post/58d1e25944d9040068528bfc</p>    <p> </p>