日夜间模式

//添加依赖

compile 'com.android.support:design:23.4.0'

//修改res-values-styles

<resources>

    <style name="AppTheme" parent="Theme.AppCompat.DayNight.DarkActionBar">
        <item name="colorPrimary">@color/colorPrimaryitem>
        <item name="colorPrimaryDark">@color/colorPrimaryDarkitem>
        <item name="colorAccent">@color/colorAccentitem>
    style>

    <style name="AppTheme.NoActionBar">
        <item name="windowActionBar">falseitem>
        <item name="windowNoTitle">trueitem>
    style>

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

    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />

resources>

 

 

 

//在res中新建values-night  创建colors

xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="colorPrimary">#2196F3color>
    <color name="colorPrimaryDark">#1976D2color>
    <color name="colorAccent">#CDDC39color>
resources>

//主布局

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"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:context="com.example.administrator.riye.MainActivity">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">


    android.support.design.widget.AppBarLayout>

    <include layout="@layout/content_main" />

    <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="@dimen/fab_margin"
        android:src="@android:drawable/ic_dialog_email" />

android.support.design.widget.CoordinatorLayout>

 

 

//布局

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"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context="com.example.administrator.riye.MainActivity"
    tools:showIn="@layout/activity_main">

    <Button
        android:id="@+id/btn_auto"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="自动模式" />

    <Button
        android:id="@+id/btn_day"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="日间模式" />

    <Button
        android:id="@+id/btn_night"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="夜间模式" />
LinearLayout>

//主代码

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.app.AppCompatDelegate;
import android.view.View;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    {
        AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_AUTO);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);
        findViewById(R.id.btn_auto).setOnClickListener(this);
        findViewById(R.id.btn_day).setOnClickListener(this);
        findViewById(R.id.btn_night).setOnClickListener(this);
        findViewById(R.id.fab).setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.btn_auto: {
                getDelegate().setLocalNightMode(AppCompatDelegate.MODE_NIGHT_AUTO);
                recreate();
                break;
            }
            case R.id.btn_day: {
                getDelegate().setLocalNightMode(AppCompatDelegate.MODE_NIGHT_NO);
                recreate();
                break;
            }
            case R.id.btn_night: {
                getDelegate().setLocalNightMode(AppCompatDelegate.MODE_NIGHT_YES);
                recreate();
                break;
            }
        }
    }
}