获取当前壁纸

Question

I'm pretty new to Android programming so bear with me.

I was wondering if there was a method of retrieving the current wallpaper on an android device and saving it to a variable in your app's code.

Thanks

Answer 1

final WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);
final Drawable wallpaperDrawable = wallpaperManager.getDrawable();

Answer 2

This is the good way to do that:

WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);
Drawable wallpaperDrawable = wallpaperManager.getDrawable();

Answer 3

This goes a step further and saves the file. You'll need exception handling of course and you'll need external write permission.

import java.io.FileOutputStream;
import android.graphics.Bitmap;
import android.app.WallpaperManager;

WallpaperManager wmInstance = WallpaperManager.getInstance(context);

wmInstance
    .getDrawable()
    .getBitmap()
    .compress(Bitmap.CompressFormat.PNG, 100,
        new FileOutputStream("/storage/emulated/0/output.png"))