Android动态壁纸 Live Wallpaper(WallpaperService.Engine)

源码下载：http://download.csdn.net/detail/heng615975867/6533429

动态壁纸Live Wallpaper架构

 

组件类	说明
WallpaperService	实现动态壁纸的服务程序
WallpaperService.Engine	描绘动态壁纸的引擎
PreferenceActivity	动态壁纸的参数设置窗体

 

动态壁纸Live Wallpaper应用程序必须实现动态壁纸的服务程序WallpaperService和描绘动态壁纸的引擎WallpaperService.Engine，当你需要设置动态壁纸的参数来改变动画的属性时，必须提供设置参数的窗体。此时才需要实现动态壁纸的参数设置窗体PreferenceActivity。

咱们先来说一次简单的步骤：

（1）建一个类继承WallpaperService，比如说为LiveWallpaper.java

（2）然后在AndrodManifest.XML文件的<service>标签内定义动态壁纸的服务程序LiveWallpaper.java和动态壁纸的资源来源“/res/XML/liveWallpaper.XML”

（3）还需要增加一个<Activity>标签来设置动态壁纸参数设置程序HelloLiveWallpaperSetting.java，当然这个要去继承PreferenceActivity

AndrodManifest.XML

 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.njue.livewallpaper"
     android:versionCode="1"
     android:versionName="1.0" >

     <uses-sdk android:minSdkVersion="7" />

     <application
         android:icon="@drawable/icon"
         android:label="@string/app_name" >
             <service
          android:label="@string/app_name"
          android:permission="android.permission.BIND_WALLPAPER"
          android:name=".LiveWallpaper">
          <intent-filter>
              <action android:name="android.service.wallpaper.WallpaperService" />
          </intent-filter>
          <meta-data android:name="android.service.wallpaper"
                     android:resource="@xml/livewallpaper" />
        </service>
         <activity android:name=".LiveWallpaperSettings"
         android:label="@string/wallpaper_settings"
         android:theme="@android:style/Theme.Light.WallpaperSettings"
         android:exported="true">
     </activity>
     </application>
 </manifest>

 

/res/XML/liveWallpaper.XML

 <?xml version="1.0" encoding="UTF-8"?>
 <wallpaper
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:thumbnail="@drawable/floewr1"
     android:description="@string/description"
     android:settingsActivity="com.njue.livewallpaper.LiveWallpaperSettings"
     />

参数设置界面的布局代码settings.xml

 <?xml version="1.0" encoding="utf-8"?>
 <PreferenceScreen
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:title="@string/settings">
   <ListPreference
       android:key="@string/leaf1Count"
       android:title="@string/settings_title"
       android:summary="@string/settings_summary"
       android:entries="@array/entries"
       android:entryValues="@array/values" />
         <ListPreference
       android:key="@string/flower1Count"
       android:title="@string/settings_title1"
       android:summary="@string/settings_summary1"
       android:entries="@array/entries"
       android:entryValues="@array/values" />
         <ListPreference
       android:key="@string/flower2Count"
       android:title="@string/settings_title2"
       android:summary="@string/settings_summary2"
       android:entries="@array/entries"
       android:entryValues="@array/values" />
     <EditTextPreference
    android:key="@string/inputText"
    android:title="输入你喜欢的文字"
    android:summary="点击输入"
    android:dialogTitle="输入文字设置"

      />
         <EditTextPreference
    android:key="@string/wordCount"
    android:title="一列显示的字符数"
    android:summary="请输入数字"
    android:dialogTitle="一列显示的字符数（请输入数字）"
    android:digits="0123456789"
    />
    <PreferenceCategory
    android:title="恢复默认设置"
    >
    <CheckBoxPreference
    android:key="@string/reset"
    android:title="恢复默认设置"
    android:summaryOn="恢复默认设置"
    android:summaryOff="恢复默认设置"
    android:defaultValue="false"
    ></CheckBoxPreference>
    </PreferenceCategory>

 </PreferenceScreen>

 

这是一个我自己编写的简单动态壁纸效果图：