Get all live wallpapers from device

Question

I'm trying to develop android app And I want to allow user to choose background of app from live wallpapers.

Now, How I can get Live Wallpapers from device?

I want to get all live wallpapers from device, Can I do it?

Answer 1

You can get available ResolveInfo list of all live wallpapers in the device:

 public List<ResolveInfo> GET_ALL_LIVE_WALLPAPERS () 
 {
    PackageManager m_package_manager = getPackageManager();
    List<ResolveInfo> available_wallpapers_list = 
         m_package_manager.queryIntentServices(
             new Intent(WallpaperService.SERVICE_INTERFACE),
             PackageManager.GET_META_DATA);

    for (int i = 0; i < available_wallpapers_list.size(); i++) {
        Log.i("TEST", " " + available_wallpapers_list.get(i).toString());
    }
    return available_wallpapers_list;
 }

available_wallpapers_list will contain the amount of ResolveInfo same as the amount of live wallpapers in the device. Then choose any of them in the list by creating a new WallpaperInfo of desired one:

 private void CHOOSE_LIVE_WALLPAPER (List<ResolveInfo> available_wallpapers_list)
 {
    WallpaperInfo info;
    int index = 0;
    try {
        info = new WallpaperInfo(this, available_wallpapers_list.get(index));
    } catch (XmlPullParserException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    ComponentName component = info.getComponent();
    Intent intent = new Intent(WallpaperManager.ACTION_CHANGE_LIVE_WALLPAPER);
    intent.putExtra(WallpaperManager.EXTRA_LIVE_WALLPAPER_COMPONENT, component);
    startActivityForResult(intent, 155);
 }

If you just want to be cooler and show a live wallpaper selection screen, use:

Intent intent = new Intent(WallpaperManager.ACTION_LIVE_WALLPAPER_CHOOSER);
startActivityForResult(intent, 155);

Lastly you can call adb shell am command for 4.3+ devices;

adb shell am start -n com.android.wallpaper.livepicker/.LiveWallpaperActivity

by using:

Runtime.getRuntime().exec("am start -n com.android.wallpaper.livepicker/.LiveWallpaperActivity");

Cheers.

Answer 2

Intent intent = new Intent();
intent.setAction(WallpaperManager.ACTION_LIVE_WALLPAPER_CHOOSER);
startActivity(intent);