BuildingListDialog.java

package edu.purdue.app.map;

import java.util.ArrayList;
import java.util.List;

import com.google.android.gms.maps.model.LatLng;

import edu.purdue.app.R;
import edu.purdue.app.map.MapData.Building;
import android.app.DialogFragment;
import android.app.Fragment;
import android.graphics.Point;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
import android.widget.LinearLayout.LayoutParams;
import android.widget.RelativeLayout;

public class BuildingListDialog extends DialogFragment implements OnItemClickListener {
	
	OnBuildingSelectedListener listener;
	String catSelected;
	ListView catList, subList;
	
	/** State of the list */
	public static String CATEGORY_LIST = "CATEGORIES";
	public String currentCategory = CATEGORY_LIST;
	
	/** Interface for intercepting list selections in fragments */
	public interface OnBuildingSelectedListener {
		void onBuildingSelected(Building b);
	}
	
	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
		
		getDialog().setTitle("Categories");
		
		View v = inflater.inflate(R.layout.map_fragment_buildinglist, container, false);
		catList = (ListView) v.findViewById(R.id.map_buildinglist_listview);
		
		catList.setAdapter(
				new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, 
						MapActivity.mpd.getBuildingCategories() ) );
		catList.setOnItemClickListener(this);
		
		currentCategory = CATEGORY_LIST;
		
		return v;
		
	}

	/** Called when the user selects an item on either list view */
	public void onItemClick(AdapterView<?> list, View v, int pos, long id) {
		
		List<String> inflate = null;
		if (currentCategory.equals(CATEGORY_LIST)) {
			
			currentCategory = MapActivity.mpd.getBuildingCategories().get(pos);
			getDialog().setTitle(currentCategory);
			
			inflate = new ArrayList<String>();
			for (Building b : MapActivity.mpd.getBuildings(currentCategory)) {
				inflate.add(b.full_name);
			}
			catList.setAdapter(new ArrayAdapter<String>(
					getActivity(), android.R.layout.simple_list_item_1, inflate));
			
		}
		else {
			listener.onBuildingSelected(MapActivity.mpd.getBuildings(currentCategory).get(pos));
			getDialog().dismiss();
		}
		
	}
		
	
	public void setOnBuildingSelectedListener(OnBuildingSelectedListener b) {
		this.listener = b;
	}

	
	
}