Android Open Source - kusor Kusor Activity

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License

The source code is released under:

GNU Lesser General Public License

Java Source Code

/*******************************************************************************
 * Copyleft 2013 Massimiliano Leone - massimiliano.leone@iubris.net .
 * /*from  www .j ava2 s .co  m*/
 * KusorActivity.java is part of 'Kusor'.
 * 
 * 'Kusor' is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 * 
 * 'Kusor' is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with 'Kusor' ; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 ******************************************************************************/
package net.iubris.kusor_sample.activity;

import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

import javax.inject.Inject;

import net.iubris.kusor.locator.KLocator;
import net.iubris.kusor_sample.R;
import net.iubris.kusor_sample.service.KusorService;
import roboguice.activity.RoboActivity;
import roboguice.inject.ContentView;
import roboguice.inject.InjectView;
import roboguice.util.RoboAsyncTask;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.location.Location;
import android.os.Bundle;
import android.text.method.ScrollingMovementMethod;
import android.widget.TextView;

@ContentView(R.layout.sample)
public class KusorActivity extends RoboActivity {
  
  private final String action = "net.iubris.kusor_sample."+KLocator.ACTION_LOCATION_UPDATED;
  
  @InjectView(R.id.text_field_locations) TextView textViewLocations;
  @InjectView(R.id.text_field_providers) TextView textViewProviders;
  
  @Inject KLocator kLocator;

  private Intent serviceIntent;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
//Debug.startMethodTracing(Environment.getExternalStorageDirectory().getPath()+"/traces/kusor__startup");
    super.onCreate(savedInstanceState);
    serviceIntent = new Intent(this, KusorService.class);
    startService( serviceIntent );
    
    // use receiver to get location asynchronously    
    registerReceiver(receiver, new IntentFilter(action));
    
    textViewLocations.setMovementMethod(new ScrollingMovementMethod());
  }
  
  private BroadcastReceiver receiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
//      if (intent.getAction().equalsIgnoreCase("net.iubris.kusor.ACTION_LOCATION_UPDATED")){
//        KLocator kLocator = RoboGuice.getInjector(context).getInstance(KLocator.class);
        Location location = kLocator.getLocation();
//        showLocation("onReceive[KusorActivity:35]:\n",location);
        showLocation("onReceive:\n",location);
//      }
    }
  };
  
//  @SuppressWarnings("deprecation")
  private void showLocation(String from, Location location) {
//    Log.d("KusorActivity:41",  from+location );
    
    long locationTime = location.getTime();
//    Date date = new Date(locationTime);
    SimpleDateFormat sdf = new SimpleDateFormat("dd-MMM-yyyy HH:mm:ss.SSS",Locale.getDefault());
    String formattedDate = sdf.format( new Date(locationTime));
//    .toLocaleString();
    
    long now = System.currentTimeMillis();
    String formattedNow = sdf.format( new Date(now));
    textViewLocations.setText(textViewLocations.getText()
        +formattedNow+"\n");
    
    long diff = now - locationTime;
    if (diff<60*1000) { // < 1 min
      textViewLocations.setText(textViewLocations.getText()
          +"a recent location!\n");
//Debug.stopMethodTracing();
    }
    
    DecimalFormat df = new DecimalFormat("##.######");
    textViewLocations.setText(textViewLocations.getText()
        +from
        +"latitude:"+ df.format( location.getLatitude() )+", longitude:"+df.format( location.getLongitude() )+"\n"
        +"at: "+formattedDate+"\n"
        +"by: "+location.getProvider()+"\n"
        +"accuracy: "+location.getAccuracy()+"\n"
        +"\n");
//    Toast.makeText(this, padding+location, Toast.LENGTH_SHORT).show();
  }
  
  @Override
  protected void onResume() {
    super.onResume();
    
    textViewProviders.setText(
      "is gps enabled: "+ kLocator.isGpsProviderEnabled()+"\n"
      +"is network enabled: "+ kLocator.isNetworkProviderEnabled()
    );
    
    // or you can wait for a location not null, using a while, but this blocks the ui, so use asynctask!
    new RoboAsyncTask<Location>(this) {
      @Override
      public Location call() throws Exception {
        
        while (kLocator.getLocation()==null) {
          Thread.sleep(10);
        }
        return kLocator.getLocation();
      }
      protected void onSuccess(Location location) throws Exception {
        showLocation("onResume:\n",location);
      };
    }.execute();
  };
  
  @Override
  protected void onDestroy() {
    unregisterReceiver(receiver);
    stopService( serviceIntent  );
    super.onDestroy();
  }
}

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