Autoinstalls loading xml

> Launcher checkes for an apk in the system image with a broadcast
receiver for action:
com.android.launcher3.action.LAUNCHER_CUSTOMIZATION
> Default layout is parsed from that apk, which can also contain
icons and string resources used in the layout config

Change-Id: I44fc9e7c3134f525f7b5db29f4e8bb56e17ce445

1 files changed, 23 insertions, 4 deletions

diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index 87c2d7515..60185c658 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -38,8 +38,8 @@ import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.graphics.drawable.PaintDrawable;
 import android.os.Build;
-import android.util.DisplayMetrics;
 import android.util.Log;
+import android.util.Pair;
 import android.util.SparseArray;
 import android.view.View;
 import android.widget.Toast;
@@ -328,9 +328,6 @@ public final class Utilities {
 
     private static void initStatics(Context context) {
         final Resources resources = context.getResources();
-        final DisplayMetrics metrics = resources.getDisplayMetrics();
-        final float density = metrics.density;
-
         sIconWidth = sIconHeight = (int) resources.getDimension(R.dimen.app_icon_size);
         sIconTextureWidth = sIconTextureHeight = sIconWidth;
     }
@@ -474,4 +471,26 @@ public final class Utilities {
         }
         return bestColor;
     }
+
+    /*
+     * Finds a system apk which had a broadcast receiver listening to a particular action.
+     * @param action intent action used to find the apk
+     * @return a pair of apk package name and the resources.
+     */
+    static Pair<String, Resources> findSystemApk(String action, PackageManager pm) {
+        final Intent intent = new Intent(action);
+        for (ResolveInfo info : pm.queryBroadcastReceivers(intent, 0)) {
+            if (info.activityInfo != null &&
+                    (info.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
+                final String packageName = info.activityInfo.packageName;
+                try {
+                    final Resources res = pm.getResourcesForApplication(packageName);
+                    return Pair.create(packageName, res);
+                } catch (NameNotFoundException e) {
+                    Log.w(TAG, "Failed to find resources for " + packageName);
+                }
+            }
+        }
+        return null;
+    }
 }