Clear avatar media cache on theme change

Default avatars retained the previou;sly applied theme's colors
due to the avatar images being cached.  This patch checks if a
theme change has occurred and if so destroys the avatar media cache
so that it can be rebuilt with the newly applied theme's colors.

Change-Id: Iab3d6e0171a949235da643fc80bf54d9375e42fb
TICKET: CYNGNOS-3118

1 files changed, 16 insertions, 0 deletions

diff --git a/src/com/android/messaging/BugleApplication.java b/src/com/android/messaging/BugleApplication.java
index c439700..b400fa4 100644
--- a/src/com/android/messaging/BugleApplication.java
+++ b/src/com/android/messaging/BugleApplication.java
@@ -21,6 +21,7 @@ import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.content.pm.ActivityInfo;
 import android.content.res.Configuration;
 import android.database.ContentObserver;
 import android.database.Cursor;
@@ -39,6 +40,9 @@ import com.android.messaging.datamodel.DatabaseWrapper;
 import com.android.messaging.datamodel.MessagingContentProvider;
 import com.android.messaging.datamodel.action.UpdateConversationArchiveStatusAction;
 import com.android.messaging.datamodel.action.UpdateDestinationBlockedAction;
+import com.android.messaging.datamodel.media.BugleMediaCacheManager;
+import com.android.messaging.datamodel.media.MediaCache;
+import com.android.messaging.datamodel.media.MediaCacheManager;
 import com.android.messaging.receiver.SmsReceiver;
 import com.android.messaging.sms.ApnDatabase;
 import com.android.messaging.sms.BugleApnSettingsLoader;
@@ -70,6 +74,8 @@ public class BugleApplication extends Application implements UncaughtExceptionHa
     private UncaughtExceptionHandler sSystemUncaughtExceptionHandler;
     private static boolean sRunningTests = false;
 
+    private Configuration mCurrentConfig;
+
     @VisibleForTesting
     protected static void setTestsRunning() {
         sRunningTests = true;
@@ -103,6 +109,8 @@ public class BugleApplication extends Application implements UncaughtExceptionHa
         BlacklistSync blacklistSync = new BlacklistSync(getApplicationContext());
         blacklistSync.execute();
 
+        mCurrentConfig = new Configuration(getResources().getConfiguration());
+
 
         sSystemUncaughtExceptionHandler = Thread.getDefaultUncaughtExceptionHandler();
         Thread.setDefaultUncaughtExceptionHandler(this);
@@ -118,6 +126,14 @@ public class BugleApplication extends Application implements UncaughtExceptionHa
         // Update conversation drawables when changing writing systems
         // (Right-To-Left / Left-To-Right)
         ConversationDrawables.get().updateDrawables();
+
+        // Clear avatar image cache on theme change
+        int changed = mCurrentConfig.updateFrom(newConfig);
+        if ((changed & ActivityInfo.CONFIG_THEME_RESOURCE) != 0) {
+            MediaCache<?> avatarCache = MediaCacheManager.get()
+                    .getOrCreateMediaCacheById(BugleMediaCacheManager.AVATAR_IMAGE_CACHE);
+            avatarCache.destroy();
+        }
     }
 
     // Called by the "real" factory from FactoryImpl.register() (i.e. not run in tests)