Updating IconCache to maintain a persistent of icons

> IconDB maintains a DB of icons keyed on ComponentName + User
> During loader, icons & labels are loaded first from the DB, and
if the entry doesn't exist, loaded using packageManager
> After the loader completes, IconDB updates any entry which might have
changed, while the launcher was dead.

Change-Id: I7a6021cb6d1ca1e66fa5a0bdd21e1543e0cf66fc

1 files changed, 11 insertions, 0 deletions

diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index 1a9b9a16c..497b43874 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -31,7 +31,9 @@ import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.ResolveInfo;
 import android.content.res.Resources;
+import android.database.Cursor;
 import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
 import android.graphics.Canvas;
 import android.graphics.Color;
 import android.graphics.Matrix;
@@ -112,6 +114,15 @@ public final class Utilities {
         return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP;
     }
 
+    static Bitmap createIconBitmap(Cursor c, int iconIndex, Context context) {
+        byte[] data = c.getBlob(iconIndex);
+        try {
+            return createIconBitmap(BitmapFactory.decodeByteArray(data, 0, data.length), context);
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
     /**
      * Returns a bitmap suitable for the all apps view. If the package or the resource do not
      * exist, it returns null.