Question

I’m attempting to create a class that extends a CursorAdapter in order to display a RatingBar and text in the ListView, using its newView and bindView methods.This is an attempt to go further with the Notepad tutorials from the Dev website.My problem is that the program crashes manly because I’m implementing the methods wrong , although there may be other problems of implementation in this class or the filldata method.My question is what is the correct way to write the code so that I can display a rating bar in a listview along with other textviews?Thank you

package com.android.demo.notepad3;

import android.content.Context;
import android.database.Cursor;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CursorAdapter;
import android.widget.EditText;
import android.widget.RatingBar;

public class NoteA extends BaseAdapter{
    private final LayoutInflater mInflater;
    private EditText mTitleText;
    private EditText mBodyText;
    private RatingBar mRatingBar;
    private NotesDbAdapter mDbHelper;
    Context c1;
    static Cursor c;
    private static boolean autoRequery;


    public NoteA(Context context, int layout, Cursor c, String[] from, int[] to) {
    super(context, c, autoRequery);
    mInflater = LayoutInflater.from(context);
    c1=context;
    this.c=c;
     mDbHelper = new NotesDbAdapter(context);
      mDbHelper.open();

    }
    @Override
public View getView(int arg0, View arg1, ViewGroup arg2) {


      final View view = inflater.inflate(R.layout.notes_row, null);
      mTitleText = (EditText) view.findViewById(R.id.title);
      mBodyText = (EditText) view.findViewById(R.id.body);
      mRatingBar= (RatingBar) view.findViewById(R.id.ratingbar);

      mTitleText.setText(c.getString(
             c.getColumnIndexOrThrow(NotesDbAdapter.KEY_TITLE)));
     mBodyText.setText(c.getString(
             c.getColumnIndexOrThrow(NotesDbAdapter.KEY_BODY)));
     mRatingBar.setRating(c.getFloat(
             c.getColumnIndexOrThrow(NotesDbAdapter.KEY_RATING)));

    return view;
}
     // @Override
//public void bindView(View view, Context context, Cursor cursor) {

//}

//@Override
//public View newView(Context context, Cursor cursor, ViewGroup parent) {
//final View view = mInflater.inflate(R.layout.notes_row, parent, false);
//bindView(view, context, cursor);
//return view;
//}



}

Filldata method from the Notepad3 class wich extends a ListActivity

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

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

       // and an array of the fields we want to bind those fields to (in this case just text1)
       int[] to = new int[]{R.id.text1,R.id.text2};

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

Answer 1

You need to create your own custom ListView using BaseAdapter..

Like this..

public class MyCustomAdapter extends BaseAdapter{
private Context context;

private List<Phonebook> listPhonebook;

public PhonebookAdapter(Context context, List<Phonebook> listPhonebook) {
    this.context = context;
    this.listPhonebook = listPhonebook;
}

public int getCount() {
    return listPhonebook.size();
}

public Object getItem(int position) {
    return listPhonebook.get(position);
}

public long getItemId(int position) {
    return position;
}

public View getView(int position, View convertView, ViewGroup viewGroup) {
 outInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = inflater.inflate(R.layout.phone_row, null); //This should be your Layout with the rating bar

 //Here you can get your widgets for use like this..

  TextView tvPhone = (TextView) convertView.findViewById(R.id.tvMobile);
 //You can do the same thing for the Rating bar you.

    }