commit b25a4d60e6d2178faff99ddfcd7c1541ea5aeadf
author Treehugger Robot <treehugger-gerrit@google.com> Fri Nov 30 16:45:02 2018 +0000
committer Gerrit Code Review <noreply-gerritcodereview@google.com> Fri Nov 30 16:45:02 2018 +0000
tree c915b83f5454a26c727bc8deb96e97d9ec92983a
parent 6fc3189e37b3b57bc7cd42c7920c1efdd9860c9b
parent 1c7ae31e97f0d90b16dcbefff9c436601cba7007

Merge "Nullify the default wallpaper component if it does not exist"

core/java/android/app/WallpaperManager.java

diff --git a/core/java/android/app/WallpaperManager.java b/core/java/android/app/WallpaperManager.java
index e7ba2e6..b8c9842 100644
--- a/core/java/android/app/WallpaperManager.java
+++ b/core/java/android/app/WallpaperManager.java
@@ -1885,23 +1885,33 @@
      * @hide
      */
     public static ComponentName getDefaultWallpaperComponent(Context context) {
+        ComponentName cn = null;
+
         String flat = SystemProperties.get(PROP_WALLPAPER_COMPONENT);
         if (!TextUtils.isEmpty(flat)) {
-            final ComponentName cn = ComponentName.unflattenFromString(flat);
-            if (cn != null) {
-                return cn;
+            cn = ComponentName.unflattenFromString(flat);
+        }
+
+        if (cn == null) {
+            flat = context.getString(com.android.internal.R.string.default_wallpaper_component);
+            if (!TextUtils.isEmpty(flat)) {
+                cn = ComponentName.unflattenFromString(flat);
             }
         }
 
-        flat = context.getString(com.android.internal.R.string.default_wallpaper_component);
-        if (!TextUtils.isEmpty(flat)) {
-            final ComponentName cn = ComponentName.unflattenFromString(flat);
-            if (cn != null) {
-                return cn;
+        // Check if the package exists
+        if (cn != null) {
+            try {
+                final PackageManager packageManager = context.getPackageManager();
+                packageManager.getPackageInfo(cn.getPackageName(),
+                        PackageManager.MATCH_DIRECT_BOOT_AWARE
+                                | PackageManager.MATCH_DIRECT_BOOT_UNAWARE);
+            } catch (PackageManager.NameNotFoundException e) {
+                cn = null;
             }
         }
 
-        return null;
+        return cn;
     }
 
     /**