Android Open Source - OpenFoodFinder Main Activity

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Back to project page OpenFoodFinder.

License

The source code is released under:

Apache License

Java Source Code

package com.kudos.off;
//  w w  w .j av a2  s  .  c o  m
import java.util.Collections;
import java.util.List;


import com.kudos.off.R;
import com.kudos.off.GooglePlaces;
import com.kudos.off.Place;

import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.RatingBar;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;


public class MainActivity extends Activity implements OnItemSelectedListener {

  private int radius = 500; //default value of 500m
  private Bundle bundle;
  private String[] keyList;
  boolean connectionStatusOK = false;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    bundle = savedInstanceState;
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    setTitle("Open Food Finder");
    ListView listView = (ListView) findViewById(R.id.listView);
    
    TextView statusText = (TextView) findViewById(R.id.textView1);
    
    Spinner spinner = (Spinner) findViewById(R.id.drop_down);
    spinner.setOnItemSelectedListener(this);

    Double lat, lng;
    try {
      GPSLocation gLoc  = new GPSLocation(getApplicationContext());
      lat = gLoc.getLatitude(); lng = gLoc.getLongitude(); 
    } catch (Exception e) {
      lat = -36.8498; lng = 174.7650; //Queen St. Auckland
    }

    List<Place> listOfPlaces = null;

    keyList = getResources().getStringArray(R.array.keys);
    for (int i=0; i<keyList.length; i++) {
      try {
        listOfPlaces = new GooglePlaces().getPlaces(keyList[i], lat, lng, radius);
        
        if (listOfPlaces == null) {
          // could not connect at all
          break;
        } else if (listOfPlaces.size() == 0) {
          // max quota reached for key
          continue;
        } else {
          connectionStatusOK = true;
          break;
        }
      } catch (Exception e) {
        e.printStackTrace();
        continue;
      }
    }
    
    final List<Place> list;
    
    if (connectionStatusOK == false) {
      statusText.setText("Connection Error");
      list = Collections.emptyList();
    } else {
      list = listOfPlaces;
    }
    
    ListAdapter listAdapter = new CustomPlaceAdapter(MainActivity.this, list);
    listView.setAdapter(listAdapter);
    
    /*Anonymous class to create a listener for item selections.*/
    listView.setOnItemClickListener( new AdapterView.OnItemClickListener() {

      @Override
      public void onItemClick(AdapterView<?> parentView, View clickedView, int clickedPos, long id) {
        Place clickedOn = list.get(clickedPos); //Get the contact that has been clicked on from the array
        
        /*Intent to pass the Contact object that has been clicked on into the new activity, 
         * by bundling it first.
         */
        Intent intent = new Intent(MainActivity.this, RestaurantPageActivity.class);
        intent.putExtra("com.kudos.off.Place", clickedOn); //Should be changed to com.kudos.openfoodfinder.Place
        startActivity(intent);
      }
    });
    
    // Create an ArrayAdapter using the string array and a default spinner layout
    ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
            R.array.radius_array  , android.R.layout.simple_spinner_item);
    // Specify the layout to use when the list of choices appears
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    // Apply the adapter to the spinner
    spinner.setAdapter(adapter);  
  }
    
  private class CustomPlaceAdapter extends ArrayAdapter<Place> {
    private Context context;
    private List<Place> places;
    
    CustomPlaceAdapter(Context context, List<Place> places) {
      super(context, android.R.layout.simple_list_item_1, places);
      
      this.context = context;
      this.places = places;
    }
    
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
      LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
      
      View listItemView = inflater.inflate(R.layout.custom_list,null);
      
      TextView name = (TextView)listItemView.findViewById(R.id.name);
      TextView noRating = (TextView)listItemView.findViewById(R.id.rating);
      RatingBar ratingBar = (RatingBar)listItemView.findViewById(R.id.ratingBar);
      
      
      name.setText(places.get(position).getName());
      Double ratingValue = places.get(position).getRating();
      if (ratingValue < 0) {
          noRating.setText("No rating available");
          noRating.setVisibility(View.VISIBLE);
        } else {
          ratingBar.setRating(Float.parseFloat(ratingValue.toString()));
          ratingBar.setVisibility(View.VISIBLE);
        }
      
      return listItemView;
    }
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
  }

  @Override
  public void onItemSelected(AdapterView<?> parent, View view, int pos,
      long id) {
   if (!(parent.getItemAtPosition(pos).toString().equals("Radius(m)"))) {
     radius = Integer.parseInt(parent.getItemAtPosition(pos).toString());
     this.onCreate(bundle);     
   }
  }

  @Override
  public void onNothingSelected(AdapterView<?> arg0) {
    // TODO Auto-generated method stub
    
  }
}

Java Source Code List

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