Question

After the completion of the Notepad tutorials I’ve managed to add a rating bar in the edit note section, allowing the user to interact with it and rate the note,this being saved in the SQL database. Now I’m trying to add the rating bar in the fillData() method which defines the row elements of the list allowing to easily populate the list with entries from the database. But the problem is that the program crahses because of the R.id.rating and I don’t know how to fix it. Is there a way to display the rating along with the notes in the primary list view? Thank You

private void fillData() {
    Cursor notesCursor = mDbHelper.fetchAllNotes();
    startManagingCursor(notesCursor);

    // Create an array to specify the fields we want to display in the list 
    String[] from = new String[]{NotesDbAdapter.KEY_TITLE,NotesDbAdapter.KEY_BODY,NotesDbAdapter.KEY_RATING};

    // and an array of the fields we want to bind those fields to 
    int[] to = new int[]{R.id.text1,R.id.text2,R.id.rating};

    // Now create a simple cursor adapter and set it to display
    SimpleCursorAdapter notes = 
        new SimpleCursorAdapter(this, R.layout.notes_row, notesCursor, from, to);
    setListAdapter(notes);
}

Answer 1

SimpleCursorAdapter only supports TextViews and ImageViews and does not support RatingBar

Refer for details:

http://developer.android.com/reference/android/widget/SimpleCursorAdapter.html

Now to display RatingBar in ListView, you have to use CursorAdapter and use its newView to create and bindView to set the rating value. You can also use ListAdapter which is more verbose to use.

Refer to:

http://developer.android.com/reference/android/widget/CursorAdapter.html
http://developer.android.com/reference/android/widget/ListAdapter.html