三行Android代码实现白天夜间模式流畅切换

android:background="?attr/zzbackground"
 app:backgroundAttr="zzbackground"//如果当前页面要立即刷新，这里传入属性名称 比如R.attr.zzbackground 传zzbackground即可 
 android:textColor="?attr/zztextColor"
 app:textColorAttr="zztextColor"//如需立即刷新页面效果 同上 

 @Override
 protected void onCreate(Bundle savedInstanceState) {
   // 在要立即切换效果的页面调用此方法
   ChangeModeController.getInstance().init(this,R.attr.class).setTheme(this, R.style.DayTheme, R.style.NightTheme);
   //在其他页面调用此方法 
   //ChangeModeController.setTheme(this, R.style.DayTheme, R.style.NightTheme);
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

  //添加额外view至夜间管理
  // ChangeModeController.getInstance().addBackgroundColor(toolbar, R.attr.colorPrimary);
  //ChangeModeController.getInstance().addBackgroundDrawable(view,R.attr.colorAccent);
  // ChangeModeController.getInstance().addTextColor(view,R.attr.colorAccent);


  // 设置切换
  //ChangeModeController.changeDay(this, R.style.DayTheme);
  //ChangeModeController.changeNight(this, R.style.NightTheme);
 }
   
 @Override
 protected void onDestroy() {
  super.onDestroy();
  // 在onDestroy调用
  ChangeModeController.onDestory();
 } 

 <?xml version="1.0" encoding="utf-8"?>
<resources>
    <attr name="zzbackground" format="color|reference"/>
    <attr name="zzbackgroundDrawable" format="reference"/>
    <attr name="zztextColor" format="color"/>
    <attr name="zzItemBackground" format="color"/>
</resources>

<resources>

 <!-- Base application theme. -->
 <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
  <!-- Customize your theme here. -->
  <item name="colorPrimary">@color/colorPrimary</item>
  <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
  <item name="colorAccent">@color/colorAccent</item>
  <item name="windowActionBar">false</item>
  <item name="android:windowNoTitle">true</item>
  <item name="windowNoTitle">true</item>
 </style>

 <!--日间模式 -->
 <style name="DayTheme" parent="AppTheme">
  <item name="zzbackground">@color/dayBackground</item>
  <item name="zzbackgroundDrawable">@drawable/ic_launcher</item>
  <item name="zztextColor">@color/dayTextColor</item>
  <item name="zzItemBackground">@color/dayItemBackground</item>
 </style>

 <!--夜间模式 -->
 <style name="NightTheme" parent="AppTheme">
  <item name="zzbackground">@color/nightBackground</item>
  <item name="zzbackgroundDrawable">@color/nightBackground</item>
  <item name="zztextColor">@color/nightTextColor</item>
  <item name="zzItemBackground">@color/nightItemBackground</item>

  <item name="colorPrimary">@color/colorPrimaryNight</item>
  <item name="colorPrimaryDark">@color/colorPrimaryDarkNight</item>
  <item name="colorAccent">@color/colorAccentNight</item>
 </style>


 <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
 <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
</resources>

<?xml version="1.0" encoding="utf-8"?>
<resources>
 <color name="dayBackground">#F2F4F7</color>
 <color name="dayTextColor">#000</color>
 <color name="dayItemBackground">#fff</color>

 <color name="nightItemBackground">#37474F</color>
 <color name="nightBackground">#263238</color>
 <color name="nightTextColor">#fff</color>
</resources> 

 <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 android:orientation="vertical"
 android:background="?attr/zzbackground"
 app:backgroundAttr="zzbackground"
 tools:context="com.thinkfreely.changemode.MainActivity">

 <android.support.design.widget.AppBarLayout
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  app:theme="@style/AppTheme.AppBarOverlay">
  <android.support.v7.widget.Toolbar
   android:id="@+id/toolbar"
   android:layout_width="match_parent"
   android:layout_height="?attr/actionBarSize"
   android:background="?attr/colorPrimary"
   app:backgroundAttr="colorPrimary"
   app:titleTextColor="?attr/zztextColor"
   app:popupTheme="@style/AppTheme.PopupOverlay"
   />
 </android.support.design.widget.AppBarLayout>

  <Button
   android:layout_width="match_parent"
   android:layout_height="120dp"
   android:gravity="center"
   android:textColor="?attr/zztextColor"
   app:textColorAttr="zztextColor"
   android:background="?attr/zzItemBackground"
   app:backgroundAttr="zzItemBackground"
   android:padding="10dp"
   android:layout_marginBottom="8dp"
   android:textSize="22sp"
   android:textAllCaps="false"
   android:text="夜间模式切换by Mr.Zk" />

 <android.support.v7.widget.RecyclerView
  android:id="@+id/recyclerView"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:scrollbars="vertical"/>
</LinearLayout> 

 @Override
 protected void onCreate(Bundle savedInstanceState) {
   //1. 在要立即切换效果的页面调用此方法
   ChangeModeController.getInstance().init(this,R.attr.class).setTheme(this, R.style.DayTheme, R.style.NightTheme);
   //在其他页面调用此方法 
   //ChangeModeController.setTheme(this, R.style.DayTheme, R.style.NightTheme);
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

  //2.设置切换夜间活日间模式
  //ChangeModeController.changeDay(this, R.style.DayTheme);//切换日间模式
  //ChangeModeController.changeNight(this, R.style.NightTheme);//切换夜间模式
 }
 @Override
 protected void onDestroy() {
  super.onDestroy();
  //3. 在onDestroy调用
  ChangeModeController.onDestory();
 } 

   //添加额外view至夜间管理
  // ChangeModeController.getInstance().addBackgroundColor(toolbar, R.attr.colorPrimary);
  //ChangeModeController.getInstance().addBackgroundDrawable(view,R.attr.colorAccent);
  // ChangeModeController.getInstance().addTextColor(view,R.attr.colorAccent);