Android Open Source - sigimera-android-app Statistic Fragment

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License

The source code is released under:
GNU General Public License
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Java Source Code

package org.sigimera.app.android;
/*from  w  ww.jav a 2s . c o m*/
/**
 * Sigimera Crises Information Platform Android Client
 * Copyright (C) 2013 by Sigimera
 * All Rights Reserved
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * This program 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 General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;

import org.sigimera.app.android.controller.ApplicationController;
import org.sigimera.app.android.controller.DistanceController;
import org.sigimera.app.android.controller.LocationController;
import org.sigimera.app.android.controller.PersistanceController;
import org.sigimera.app.android.exception.AuthenticationErrorException;
import org.sigimera.app.android.model.Constants;
import org.sigimera.app.android.model.CrisesStats;
import org.sigimera.app.android.model.Crisis;
import org.sigimera.app.android.util.Common;

import android.app.ProgressDialog;
import android.content.Intent;
import android.location.Location;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.text.Html;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;

/**
 * Statistic fragment showing the statistical information.
 * 
 * @author Corneliu-Valentin Stanciu
 * @e-mail corneliu.stanciu@sigimera.org
 */
public class StatisticFragment extends Fragment {
  
  /**
   * Authentication token.
   */
  private String authToken = null;
  
  /**
   * Crises statistics.
   */
  private CrisesStats crisesStats = null;

  /**
   * Nearest crisis to the user.
   */
  private Crisis nearestCrisis = null;
  
  /**
   * Latest occurred crisis.
   */
  private Crisis latestCrisis = null;
  
  /**
   * Today's occurred crises.
   */
  private ArrayList<Crisis> todayCrises = null;

  /**
   * This view.
   */
  private View view = null;
  
  /**
   * The details button.
   */
  private Button crisisDetailsButton = null;
  
  /**
   * Marker of the crisis which was clicked.
   */
  private Crisis clickedCrisis = null;
  
  /**
   * "Last" location of user. 
   */
  private Location userLocation = null;

  /**
   * Progress dialog for waiting while loading.
   */
  private ProgressDialog progessDialog = null;

  /**
   * GUI handler needed for starting the thread in background.
   */
  private final Handler guiHandler = new Handler();
  
  /**
   * Method which is stared in background for updating the GUI.
   */
  private final Runnable updateGUI = new Runnable() {
    @Override
    public void run() {
      updateStatistics();
    }
  };

  @Override
  public final void onActivityCreated(final Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
  }

  @Override
  public final View onCreateView(final LayoutInflater inflater,
      final ViewGroup container, final Bundle savedInstanceState) {
    view = inflater.inflate(R.layout.statistic, container, false);

    progessDialog = ProgressDialog.show(getActivity(),
        "Preparing crises information!",
        "Please be patient until the information are ready...", false);
    progessDialog.setCancelable(true);
    Thread worker = new Thread() {
      @Override
      public void run() {
        try {
          Looper.prepare();
          authToken = ApplicationController.getInstance()
              .getSessionHandler().getAuthenticationToken();
          userLocation = LocationController.getInstance()
              .getLastKnownLocation();
          
            authToken = ApplicationController.getInstance().getSessionHandler()
                .getAuthenticationToken();
          try {
            if ( !ApplicationController.getInstance().isUpdatedOne() )
              PersistanceController.getInstance().updateEverything(authToken);
          } catch (InterruptedException e) {
            Log.e("[StatisticFragment]", "Failed to update everything.");
          }

          crisesStats = PersistanceController.getInstance()
              .getCrisesStats(authToken);

          guiHandler.post(updateGUI);
        } catch (AuthenticationErrorException e) {
          // SHOULD NEVER OCCUR: Check before calling this window
          Log.e(Constants.LOG_TAG_SIGIMERA_APP,
              "Error on authentification"
                  + e.getLocalizedMessage());
        }
      }
    };
    worker.start();

    return view;
  }

  /**
   * 
   */
  private void updateStatistics() {
    latestCrisis = PersistanceController.getInstance().getLatestCrisis(
        authToken);
    nearestCrisis = PersistanceController.getInstance().getNearCrisis(
        authToken, userLocation);
    todayCrises = PersistanceController.getInstance().getTodayCrises();

    /*
     *  Set distance in km until the near crisis.
     */
    Button nearCrisisButton = (Button) view.findViewById(R.id.button0);
    double nearDistance = DistanceController.getNearCrisisDistance(
        nearestCrisis, userLocation);
    if (nearDistance != -1.0) {
      nearCrisisButton.setText(Html.fromHtml(nearDistance + " km"
          + "<br/><small><i>Nearest crisis</i></small>"));
    } else {
      nearCrisisButton.setText(Html.fromHtml("No"
          + "<br/><small><i>Nearest crisis</i></small>"));
    }
    nearCrisisButton.setOnClickListener(nearCrisisListenter);

    /*
     *  Set the number of crises today.
     */
    Button todayCrisesButton = (Button) view.findViewById(R.id.button1);
    if (todayCrises == null || todayCrises.size() == 0) {
      todayCrisesButton.setEnabled(false);
      todayCrisesButton.setText(Html.fromHtml("No crises"
          + "<br/><small><i>Today</i></small>"));
    } else {
      todayCrisesButton.setText(Html.fromHtml(todayCrises.size()
          + " crises<br/><small><i>Today</i></small>"));
    }
    todayCrisesButton.setOnClickListener(todayCrisesListenter);

    /*
     *  Set the time ago since latest crisis
     */
    Button latestCrisisButton = (Button) view.findViewById(R.id.button2);
    if (latestCrisis == null) {
      latestCrisisButton.setText(Html.fromHtml("No infos<br/>about"
          + "<br/><small><i>Latest crisis</i></small>"));
    } else {
      latestCrisisButton.setText(Html.fromHtml(Common
          .getTimeAgoInWordsSplitted(Common
              .getMiliseconds(latestCrisis.getDate()))
          + "<br/><small><i>Latest crisis</i></small>"));
    }
    latestCrisisButton.setOnClickListener(this.latestCrisisListenter);

    /*
     *  Set total number of crises
     */
    Button totalCrisesButton = (Button) view.findViewById(R.id.button3);
    if (crisesStats != null) {
      SimpleDateFormat inputFormatter = new SimpleDateFormat(
          "yyyy-MM-dd'T'HH:mm:ss'Z'");
      SimpleDateFormat outputFormatter = new SimpleDateFormat(
          "d. MMMM yyyy");
      Date date = new Date();
      try {
        if (crisesStats.getFirstCrisisAt() != null) {
          date = inputFormatter.parse(crisesStats.getFirstCrisisAt());
        }
      } catch (Exception e) {
        e.printStackTrace();
      }
      totalCrisesButton.setText(Html.fromHtml(crisesStats
          .getTotalCrises()
          + " crises since<br/><small><i>"
          + outputFormatter.format(date) + "</i></small>"));
    }

    /*
     *  Show one view at start.
     */
    clickedCrisis = nearestCrisis;
    Fragment nearCrisisFrament = new StatsFragment();
//    Fragment nearCrisisFrament = new MapFragment();
    Bundle bundle = new Bundle();
    bundle.putSerializable("crisis", nearestCrisis);
    bundle.putSerializable("style", Constants.NEAR_CRISIS);
    nearCrisisFrament.setArguments(bundle);
    showFragment(nearCrisisFrament);
    closingProgressDialog();
  }

  /**
   * Shows a given fragment in the bottom of the statistic window.
   * 
   * @param newFragment The fragment which should be loaded.
   */
  private void showFragment(final Fragment newFragment) {
    FragmentManager fragManager = getFragmentManager();
    if (fragManager != null) {
      FragmentTransaction fragTransaction = fragManager
          .beginTransaction();
      fragTransaction
          .setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
      fragTransaction.replace(R.id.main_frag_container, newFragment);
      fragTransaction.commit();
    }
  }

  /**
   * 
   */
  public final void closingProgressDialog() {
    if (progessDialog != null) {
      progessDialog.dismiss();
      progessDialog = null;
    }
  }

  /**
   * Near crisis button listener.
   */
  private OnClickListener nearCrisisListenter = new OnClickListener() {
    @Override
    public void onClick(final View v) {
      clickedCrisis = nearestCrisis;
      Fragment nearCrisisFrament = new StatsFragment();

      Bundle bundle = new Bundle();
      bundle.putSerializable("crisis", nearestCrisis);
      bundle.putSerializable("style", Constants.NEAR_CRISIS);
      nearCrisisFrament.setArguments(bundle);

      showFragment(nearCrisisFrament);
    }
  };

  /**
   * Today crises button listener.
   */
  private OnClickListener todayCrisesListenter = new OnClickListener() {
    @Override
    public void onClick(final View v) {
      Fragment todayCrisesFrament = new CrisesListFragment();

      Bundle bundle = new Bundle();
      bundle.putSerializable("crises", todayCrises);
      todayCrisesFrament.setArguments(bundle);

      showFragment(todayCrisesFrament);
    }
  };

  /**
   * Latest crisis button listener.
   */
  private OnClickListener latestCrisisListenter = new OnClickListener() {
    @Override
    public void onClick(final View v) {
      clickedCrisis = latestCrisis;
      Fragment latestCrisisFrament = new StatsFragment();

      Bundle bundle = new Bundle();
      bundle.putSerializable("crisis", latestCrisis);
      bundle.putSerializable("style", Constants.LATEST_CRISIS);
      latestCrisisFrament.setArguments(bundle);

      showFragment(latestCrisisFrament);
    }
  };
}
Java Source Code List
