Material Design实战

时间  2019-11-17
标签 material design 实战 繁體版
原文   原文链接

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javascript

Toolbar

建立项目时，默认显示ActionBar。咱们用Toolbar来代替ActionBar，所以须要指定一个不带ActionBar的主题java

有两种：android

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

activity_main.xmlgit

<?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>复制代码

MainActivity.javagithub

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;
    }
}复制代码

这里写图片描述

DrawerLayout

DrawerLayout是一个布局，能够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app

activity_main.xmlide

<?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>复制代码

MainActivity.java布局

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;
    }
}复制代码

这里写图片描述

activity_main.xmlui

<?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>复制代码

MainActivity.javathis

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;
    }
}复制代码

这里写图片描述

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>复制代码

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;
    }
}复制代码

这里写图片描述

CoordinatorLayout

CoordinatorLayout是一个增强版的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>复制代码

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;
    }
}复制代码

这里写图片描述

CardView

用于实现卡片式布局效果，能够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>复制代码

实现的效果：

这里写图片描述

每个item都是一个CardView

AppBarLayout

AppBarLayout其实是一个线性布局，内部封装了不少的滚动事件

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>复制代码

将Toolbal放在了AppBarLayout里面，而后在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，它内部的子控件能够指定如何去影响这些事件，经过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会随着一块儿向上滚动并实现隐藏

enterAlways：表示当RecycleView向下滚动的时候，Toolbar会随着一块儿向下滚动并从新显示

snap：表示当Toolbar尚未彻底隐藏或显示的时候，会根据当前滚动的距离，自动选择隐藏仍是显示。

这里写图片描述

CollapsingToolbarLayout

CollapsingToolbarLayout是一个做用于Toolbar基础之上的布局，CollapsingToolbarLayout是不能独立存在的，只能做为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>复制代码

实现的效果：

这里写图片描述

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：

这里写图片描述

源码下载：

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

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