LocationActivity.java :  » Samples » techbooster » org » jpn » techbooster » sample » location » Android Open Source

package org.jpn.techbooster.sample.location;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.location.Location;
import android.location.LocationManager;
import android.location.LocationListener;
import android.location.LocationProvider;
import android.util.Log;
import android.widget.TextView;

public class LocationActivity extends Activity implements LocationListener {
  private LocationManager locationManager_;
  private LocationProvider locationProvider_;
   
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
    
    @Override
    public void onStart() {
      super.onStart();

      TextView providerLabel = (TextView)findViewById(R.id.ProviderLabel);
            
      // 
      locationManager_ = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
      
      // GPS
      locationProvider_ = locationManager_.getProvider(LocationManager.GPS_PROVIDER);
      
      if (null == locationProvider_) {
            // GPS
            locationProvider_ = locationManager_.getProvider(LocationManager.NETWORK_PROVIDER);
            if (null == locationProvider_) {
              return;
            } else {
               providerLabel.setText("NETWORK_PROVIDER");              
            }
      } else {
        providerLabel.setText("GPS_PROVIDER");
      }
      
      // 
      locationManager_.requestLocationUpdates(locationProvider_.getName(),
                          0,
                          0,
                          this);
    }
    
    @Override
    public void onStop() {
      super.onStop();
      
      // 
      locationManager_.removeUpdates(this);
    }

    @Override
    public void onLocationChanged(Location location) {
      // TextView
      TextView latitudeLabel = (TextView)findViewById(R.id.LatitudeLabel);
      TextView LongitudeLabel = (TextView)findViewById(R.id.LongitudeLabel);
            
      latitudeLabel.setText(Double.toString(location.getLatitude()));
      LongitudeLabel.setText(Double.toString(location.getLongitude()));
    }
    
    @Override
    public void onProviderEnabled(String provider) {
      Log.d("LocationActivity","onProviderEnabled");
    }
    
    @Override
    public void onProviderDisabled(String provider) {   
      Log.d("LocationActivity","onProviderDisabled");
    }
    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {
         Log.d("LocationActivity","onStatusChanged");     
    }
}