themeprovider: notify uri on preview deletion

Ensure that registered content observers received a notification when a preview
is deleted.

Change-Id: I76046cbbff8c0f56c3384274ffcbbc7ea35ccdcb
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
(cherry picked from commit 0fe2d61cdae57c2ed36f752d24eb5479610d7289)

1 files changed, 6 insertions, 1 deletions

diff --git a/src/org/cyanogenmod/themes/provider/ThemesProvider.java b/src/org/cyanogenmod/themes/provider/ThemesProvider.java
index 25cecf0..2321b5b 100644
--- a/src/org/cyanogenmod/themes/provider/ThemesProvider.java
+++ b/src/org/cyanogenmod/themes/provider/ThemesProvider.java
@@ -136,7 +136,9 @@ public class ThemesProvider extends ContentProvider {
             c.close();
 
             rowsDeleted = sqlDB.delete(ThemesTable.TABLE_NAME, selection, selectionArgs);
-            getContext().getContentResolver().notifyChange(uri, null);
+            if (rowsDeleted > 0) {
+                getContext().getContentResolver().notifyChange(uri, null);
+            }
             return rowsDeleted;
         case PREVIEWS:
             sqlDB = mDatabase.getWritableDatabase();
@@ -153,6 +155,9 @@ public class ThemesProvider extends ContentProvider {
                         PreviewColumns.THEME_ID + "=" + c.getInt(idx), null);
             }
             c.close();
+            if (rowsDeleted > 0) {
+                getContext().getContentResolver().notifyChange(uri, null);
+            }
             return rowsDeleted;
         case MIXNMATCH:
             throw new UnsupportedOperationException("Cannot delete rows in MixNMatch table");