Launcher修改默認壁紙（default_wallpaper）

修改Launcher默認啓動加載的壁紙

private WallpaperManager mwallpaerManager;

mwallpaerManager = WallpaperManager.getInstance(this);

    try {
            mwallpaerManager.setResource(R.drawable.wallpaper_01);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            Log.e(TAG, "---she zhi bizhi");
            e.printStackTrace();
        }