protected String getAbsoluteImagePath(Uri uri)     {         // can post image         String [] proj={MediaStore.Images.Media.DATA};         Cursor cursor = managedQuery( uri,                         proj,                 // Which columns to return                         null,       // WHERE clause; which rows to return (all rows)                         null,       // WHERE clause selection arguments (none)                         null);                 // Order-by clause (ascending by name)                 int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);         cursor.moveToFirst();                   return cursor.getString(column_index);     }