Android Open Source - paktebe Direction

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From Project

Back to project page paktebe.

License

The source code is released under:

MIT License

Java Source Code

package com.maps.paktebe;
//from   w w  w. jav  a 2 s  .  c om
import java.util.List;

import org.json.JSONObject;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.GoogleMap.OnMyLocationChangeListener;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import com.google.android.gms.maps.model.PolylineOptions;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.graphics.Color;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationManager;
import android.os.AsyncTask;
import android.os.Bundle;
import android.widget.Toast;

@SuppressLint("NewApi")
public class Direction extends Activity implements OnMyLocationChangeListener {  
  private final String URL = "http://maps.googleapis.com/maps/api/directions/json?";
  private LatLng start ;
  private LatLng end;
  private String nama;
  private GoogleMap map;
  private JSONParser json;
  private ProgressDialog pDialog;
  private List<LatLng> listDirections;
  
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_direction);
    json = new JSONParser();
    setupMapIfNeeded();    
    Bundle b = getIntent().getExtras();
    if(b != null){
      start = new LatLng(b.getDouble("lat_asal"), b.getDouble("lng_asal"));
      end = new LatLng(b.getDouble("lat"), b.getDouble("lng"));
      nama = b.getString("nama");      
      System.out.println("Start : "+start+"");
      System.out.println("End : "+end+"");
    }
    new AsyncTaskDirection().execute();
  }
  
  private void setupMapIfNeeded() {
    if (map == null){
      map = ((MapFragment)getFragmentManager().findFragmentById(R.id.mapsdirections)).getMap();      
      if (map!= null){
        setupMap();
      }
    }    
  }

  private void setupMap() {
    // TODO Auto-generated method stub
    map.setMyLocationEnabled(true);
    map.setOnMyLocationChangeListener(this);
    moveToMyLocation();      
  }

  private void moveToMyLocation() {
    // TODO Auto-generated method stub
    LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
    Criteria criteria = new Criteria();    
    Location location = locationManager.getLastKnownLocation(locationManager.getBestProvider(criteria, false));
    if (location != null){
      map.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(location.getLatitude(), location.getLongitude()), 13));      
    }    
  }
  
  @Override
  protected void onResume() {
    // TODO Auto-generated method stub
    super.onResume();
    int resCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());
    if (resCode != ConnectionResult.SUCCESS){
      GooglePlayServicesUtil.getErrorDialog(resCode, this, 1);
    }
  }
  
  
  private class AsyncTaskDirection extends AsyncTask<Void, Void, Void>{
    @Override
    protected Void doInBackground(Void... params) {
      // TODO Auto-generated method stub
      
      String uri = URL
          + "origin=" + start.latitude + "," + start.longitude
          + "&destination=" + end.latitude + "," + end.longitude
          + "&sensor=true&units=metric";
      JSONObject jObject = json.getJSONFromURL(uri);
      listDirections = json.getDirection(jObject);      
      return null;
    }
    
    
    @Override
    protected void onPreExecute() {
      // TODO Auto-generated method stub
      super.onPreExecute();
      pDialog = new ProgressDialog(Direction.this);
      pDialog.setMessage("Loading ....");
      pDialog.setCancelable(true);
      pDialog.show();
    }
    
    @Override
    protected void onPostExecute(Void result) {
      // TODO Auto-generated method stub
      super.onPostExecute(result);
      pDialog.dismiss();
      gambarDirection();      
    }


    private void gambarDirection() {
      // TODO Auto-generated method stub
      PolylineOptions line = new PolylineOptions().width(3).color(Color.BLUE);
      for (int i = 0; i< listDirections.size();i++){
        line.add(listDirections.get(i));
      }
      map.addPolyline(line);      
      map.addMarker(new MarkerOptions()
          .position(end)
          .title(nama)
          .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE)));    
    }
    
  }

  @Override
  public void onMyLocationChange(Location location) {
    Toast.makeText(this, "Lokasi berubah ke " + location.getLatitude() + "," + location.getLongitude(),
        Toast.LENGTH_SHORT).show();    
  }
}

Java Source Code List

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