android手機壁紙

android手機系統含有兩種壁紙，一種是默認壁紙，還有一種是其他的。

默認壁紙一般存儲在framework裏：frameworks\base\core\res\res\drawable-nodpi\default_wallpaper.png

其他壁紙存儲在Launcher裏：packages\apps\Launcher3\WallpaperPicker\res，我們在packages\apps\Launcher3\WallpaperPicker\res\drawable-nodpi目錄下存放了一些壁紙，原圖和其小圖，其中Launcher不一定爲Launcher3，也可以爲Launcher2，關鍵看你手機用的是哪個launcher。我們需要在packages\apps\Launcher3\WallpaperPicker\res\values-nodpi\目錄下對wallpapers.xml文件進行修改：

<?xml version="1.0" encoding="utf-8"?>
<!--
 * Copyright (C) 2009 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 -->

<resources>
    <string-array name="wallpapers" translatable="false">
	<item>wallpaper_01</item>
	<item>wallpaper_02</item>
        <item>wallpaper_03</item>
        <item>wallpaper_04</item>
	<item>wallpaper_05</item>
	<item>wallpaper_06</item>
    </string-array>
</resources>

上圖中，紅色部分就是其他壁紙，長按桌面，彈出小部件和壁紙，點擊壁紙，就會顯示出默認壁紙和其他壁紙了。