Android Open Source - location-sharing-android Location Application

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License

The source code is released under:

MIT License

Java Source Code

package lv.lu.locationsharing.application;
//ww w  . j  av  a 2  s. c om
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

import com.littlefluffytoys.littlefluffylocationlibrary.LocationLibrary;

import lv.lu.locationsharing.config.Config;
import android.app.AlarmManager;
import android.app.Application;
import android.content.Intent;
import android.util.Log;

public class LocationApplication extends Application {

  final public String TAG = "LocationSharingApplication";
  private String lastTagId = null;
  private static String configFile = "config.locations";
  private File fileDir;
  private Config config;

  public boolean configFileExists() {
    File config = new File(fileDir.toString() + configFile);
    // Log.v(TAG,"Config file size: "+Utils.readableFileSize(config.length()));
    // Log.v(TAG,
    // "Exists: " + config.exists() + ", canRead: " + config.canRead()
    // + ", canWrite: " + config.canWrite());

    return (config.exists() && config.canRead() && config.canWrite());
  }

  public Config getConfig() {
    return config;

  }

  public Config getConfigFromFile() {
    boolean configExists = configFileExists();
    if (configExists) {
      Log.v(TAG, "Config from file");
      Config config = ((Config) loadClassFile(new File(fileDir.toString()
          + configFile)));
      Log.v(TAG, config + "");

      return config;

    }
    return null;

  }

  public String getLastTagId() {
    return lastTagId;
  }

//  public void getMessages() {
//    sendMessage();
//    Intent intent = new Intent(getApplicationContext(), DataService.class);
//    intent.putExtra("action", "get");
//    startService(intent);
//  }

  private Object loadClassFile(File f) {
    try {
      FileInputStream fis = new FileInputStream(f);

      ObjectInputStream ois = new ObjectInputStream(fis);
      Object o = ois.readObject();
      ois.close();
      return o;
    } catch (Exception ex) {
      // Log.v("Address Book", ex.getMessage());
      ex.printStackTrace();
      return null;
    }
  }

  @Override
  public void onCreate() {
    super.onCreate();
    fileDir = getFilesDir();
    //setConfig(new Config());
    // sendMessage();
    // deleteDatabase(DBHelper.DATABASE_NAME);
    /*
     * try { SimpleDateFormat dateFormat = new
     * SimpleDateFormat("yyyy-MM-dd_HH-mm-ss"); Date date = new Date(); File
     * dir=new
     * File(Environment.getExternalStorageDirectory().getAbsolutePath
     * ()+"/signLogs/"); boolean created=false; if(!dir.exists()){
     * created=dir.mkdirs(); } File filename = new
     * File(Environment.getExternalStorageDirectory
     * ()+"/signLogs/logfile"+dateFormat.format(date)+".log");
     * filename.createNewFile();
     * 
     * String cmd = "logcat -f "+filename.getAbsolutePath()+
     * " -v time ListView:V Prefs:V Splash:V System.err:V MyApplication:V AndroidRuntime:V *:S"
     * ; Runtime.getRuntime().exec(cmd); } catch (IOException e) {
     * 
     * e.printStackTrace(); }
     */
    // cleanConfig();Constants.java
    LocationLibrary.showDebugOutput(true);
    
        try {
            // in most cases the following initialising code using defaults is probably sufficient:
            //
            // LocationLibrary.initialiseLibrary(getBaseContext(), "com.your.package.name");
            //
            // however for the purposes of the test app, we will request unrealistically frequent location broadcasts
            // every 1 minute, and force a location update if there hasn't been one for 2 minutes.
            LocationLibrary.initialiseLibrary(getBaseContext(), 60*1000, 60*2000, "mobi.littlefluffytoys.littlefluffytestclient");
        }
        catch (UnsupportedOperationException ex) {
            Log.d("TestApplication", "UnsupportedOperationException thrown - the device doesn't have any location providers");
        }
    Log.v(TAG, fileDir.toString());
    Log.v(TAG, configFileExists() + "");
    if (configFileExists()) {
      config = getConfigFromFile();
    }
    else{
      setConfig(new Config());
    }
    //sendData();
  }

  public void resetConfig() {
    this.config = getConfigFromFile();
  }

  public void resetLastTagId() {
    this.lastTagId = null;
  }

  public boolean saveConfig(Object config) {
    try {
      FileOutputStream fos = new FileOutputStream(new File(
          fileDir.toString() + configFile));

      ObjectOutputStream oos = new ObjectOutputStream(fos);
      oos.writeObject(config);
      oos.flush();
      oos.close();
    } catch (IOException e) {
      e.printStackTrace();
      return false;
    } // write the class as an 'object'
    Log.v(TAG, "config saved");
    return true;
  }
  public LocationApplication sendUpdate() {
    Intent in = new Intent();
    in.setAction("lv.lu.locationsharing");
    sendBroadcast(in);
    return this;
  }

  public LocationApplication setConfig(Config config) {
    this.config = config;
    saveConfig(config);
    return this;

  }

}

Java Source Code List

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