Screenshots info is not updated when device is plugged in MTP modelp5.1

When device is connected as MTP mode and user opens folder
/sdcard/Pictures/Screenshots/ in windows system and captures new
screenshot, image information is always shown as 0 KB

Issue: https://code.google.com/p/android/issues/detail?id=56204

Change-Id: I0e633efc7a5b213e519d4de6b137992c5bfe8738

3 files changed, 51 insertions, 0 deletions

diff --git a/src/com/android/providers/media/IMtpService.aidl b/src/com/android/providers/media/IMtpService.aidl
index e599f7bb..f86c803e 100644
--- a/src/com/android/providers/media/IMtpService.aidl
+++ b/src/com/android/providers/media/IMtpService.aidl
@@ -20,4 +20,5 @@ interface IMtpService
 {
     void sendObjectAdded(int objectHandle);
     void sendObjectRemoved(int objectHandle);
+    void sendObjectUpdated(int objectHandle);
 }
diff --git a/src/com/android/providers/media/MediaProvider.java b/src/com/android/providers/media/MediaProvider.java
index b79b38a4..e62be25d 100755
--- a/src/com/android/providers/media/MediaProvider.java
+++ b/src/com/android/providers/media/MediaProvider.java
@@ -2863,6 +2863,19 @@ public class MediaProvider extends ContentProvider {
         }
     }
 
+    private void sendObjectUpdated(long objectHandle) {
+        synchronized (mMtpServiceConnection) {
+            if (mMtpService != null) {
+                try {
+                    mMtpService.sendObjectUpdated((int)objectHandle);
+                } catch (RemoteException e) {
+                    Log.e(TAG, "RemoteException in sendObjectUpdated", e);
+                    mMtpService = null;
+                }
+            }
+        }
+    }
+
     @Override
     public int bulkInsert(Uri uri, ContentValues values[]) {
         int match = URI_MATCHER.match(uri);
@@ -4410,6 +4423,11 @@ public class MediaProvider extends ContentProvider {
                                         + count + " match = " + match);
                             }
                         }
+                        if (count > 0) {
+                            helper.mNumQueries++;
+                            notifyMtpUpdated(sGetTableAndWhereParam.table, db,
+                                    sGetTableAndWhereParam.where, whereArgs);
+                        }
                     }
                     break;
                 case IMAGES_MEDIA:
@@ -4454,6 +4472,11 @@ public class MediaProvider extends ContentProvider {
                                 }
                             }
                         }
+                        if (count > 0) {
+                            helper.mNumQueries++;
+                            notifyMtpUpdated(sGetTableAndWhereParam.table, db,
+                                    sGetTableAndWhereParam.where, whereArgs);
+                        }
                     }
                     break;
 
@@ -4476,6 +4499,11 @@ public class MediaProvider extends ContentProvider {
                     helper.mNumUpdates++;
                     count = db.update(sGetTableAndWhereParam.table, initialValues,
                         sGetTableAndWhereParam.where, whereArgs);
+                    if (count > 0) {
+                        helper.mNumQueries++;
+                        notifyMtpUpdated(sGetTableAndWhereParam.table, db,
+                                sGetTableAndWhereParam.where, whereArgs);
+                    }
                     break;
             }
         }
@@ -4487,6 +4515,20 @@ public class MediaProvider extends ContentProvider {
         return count;
     }
 
+    private void notifyMtpUpdated(String table, SQLiteDatabase db,
+            String userWhere, String[] whereArgs) {
+        Cursor c = db.query(table, ID_PROJECTION, userWhere, whereArgs, null, null, null);
+        if (c != null) {
+            try {
+                while (c.moveToNext()) {
+                    sendObjectUpdated(c.getLong(0));
+                }
+            } finally {
+                c.close();
+            }
+        }
+    }
+
     private int movePlaylistEntry(DatabaseHelper helper, SQLiteDatabase db,
             long playlist, int from, int to) {
         if (from == to) {
diff --git a/src/com/android/providers/media/MtpService.java b/src/com/android/providers/media/MtpService.java
index 7f61d8ba..912db9bc 100644
--- a/src/com/android/providers/media/MtpService.java
+++ b/src/com/android/providers/media/MtpService.java
@@ -229,6 +229,14 @@ public class MtpService extends Service {
                 }
             }
         }
+
+        public void sendObjectUpdated(int objectHandle) {
+            synchronized (mBinder) {
+                if (mServer != null) {
+                    mServer.sendObjectUpdated(objectHandle);
+                }
+            }
+        }
     };
 
     @Override