FavoritesListFragment.java

package com.transitwidget.fragments;

import android.content.ContentUris;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.view.View;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import com.actionbarsherlock.app.SherlockListFragment;
import com.transitwidget.R;
import com.transitwidget.feed.model.Favorite;
import com.transitwidget.fragments.StopListFragment.Listener;

public class FavoritesListFragment extends SherlockListFragment implements LoaderManager.LoaderCallbacks {
    public static final String ARG_AGENCY_TAG = "agencyTag";

	private SimpleCursorAdapter mAdapter;
	private Listener mListener;
    
    private String mAgency;
    
    public FavoritesListFragment() {
        super();
    }
    
    public FavoritesListFragment(Listener listener, Bundle args) {
        super();
        mListener = listener;
        setArguments(args);
    }

    @Override
    public void onStart() {
    	super.onStart();
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        mAgency = getArguments().getString(ARG_AGENCY_TAG);
      
        String[] from = {Favorite.STOP_LABEL, Favorite.ROUTE, Favorite.DIRECTION_LABEL};
        int[] to = {R.id.stop, R.id.route, R.id.direction};

        mAdapter = new SimpleCursorAdapter(getActivity(), R.layout.favorite_list_item, null, from, to);
        setListAdapter(mAdapter);
        
        // Prepare the loader.  Either re-connect with an existing one,
        // or start a new one.
        getLoaderManager().initLoader(0, null, this);
    }
    
    

    @Override
    public void onResume() {
    	super.onResume();
    }

    @Override
    public void onListItemClick(ListView l, View v, int position, long id) {
    	super.onListItemClick(l, v, position, id);
		Cursor cursor = getActivity().getContentResolver().query(
                ContentUris.withAppendedId(Favorite.CONTENT_URI, id), 
                new String[] { Favorite.STOP, Favorite.DIRECTION, Favorite.ROUTE }, 
                null, null, null);
        
		String tag = null, direction = null, route = null;
		if (cursor.moveToFirst()) {
			tag = cursor.getString(cursor.getColumnIndex(Favorite.STOP));
			direction = cursor.getString(cursor.getColumnIndex(Favorite.DIRECTION));
			route = cursor.getString(cursor.getColumnIndex(Favorite.ROUTE));
		}

		if (tag != null) {
    		mListener.stopSelected(tag, direction, route);
		}
    }
    
    
    public Loader<Cursor> onCreateLoader(int i, Bundle bundle) {
        Uri baseUri = Favorite.CONTENT_URI;

        String selection = Favorite.AGENCY + " = ?";
        String[] selecitonArgs = { mAgency };
        String[] projection = { Favorite.STOP_LABEL, Favorite.ROUTE, Favorite.DIRECTION_LABEL, Favorite._ID };
        
        return new CursorLoader(getActivity(), baseUri,
                projection, selection, selecitonArgs,
                Favorite.ROUTE + " ASC");
    }

    public void onLoadFinished(Loader loader, Object data) {
        mAdapter.changeCursor((Cursor)data);
    }

    public void onLoaderReset(Loader loader) {
        mAdapter.changeCursor(null);
    }
}