Merge "Do not overwrite user set or live wallpapers" into main am: 3ff587dd am: 29d6d7ee

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1347163



Change-Id: I3e8a6ab45c3a697596a1e9a74fba526a5fae6680
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

services/core/java/com/android/server/WallpaperUpdateReceiver.java

@@ -24,7 +24,6 @@ import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
-import android.graphics.Bitmap;
 import android.os.AsyncTask;
 import android.os.ParcelFileDescriptor;
 import android.util.Slog;
@@ -59,10 +58,10 @@ public class WallpaperUpdateReceiver extends BroadcastReceiver {
                 return;
             }
             if (DEBUG) Slog.d(TAG, "Set customized default_wallpaper.");
-            Bitmap blank = Bitmap.createBitmap(1, 1, Bitmap.Config.ALPHA_8);
-            // set a blank wallpaper to force a redraw of default_wallpaper
-            wallpaperManager.setBitmap(blank);
-            wallpaperManager.setResource(com.android.internal.R.drawable.default_wallpaper);
+            // Check if it is not a live wallpaper set
+            if (wallpaperManager.getWallpaperInfo() == null) {
+                wallpaperManager.clearWallpaper();
+            }
         } catch (Exception e) {
             Slog.w(TAG, "Failed to customize system wallpaper." + e);
         }