Android Open Source - AutobusParma Calcola Percorso

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Back to project page AutobusParma.

License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * ? Copyright 2014 Bartolomeo Lombardi/*w  ww  . j ava2s . c o m*/
  This file is part of AutobusParma.

    AutobusParma 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 1 of the License, or
  any later version.

    AutobusParma 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 AutobusParma.  If not, see <http://www.gnu.org/licenses/>.
 */
package it.unipr.informatica.autobusparma;

import it.unipr.informatica.autobusparma.R;
import android.annotation.SuppressLint;
import android.app.Fragment;
import android.content.Context;
import android.graphics.Bitmap;
import android.location.Location;
import android.location.LocationManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ProgressBar;
import android.widget.Toast;

@SuppressLint("SetJavaScriptEnabled")
public class CalcolaPercorso extends Fragment{
  
  public CalcolaPercorso(){}
  public WebView myWebView;
  public ProgressBar progressBar;
  private String curURL="http://lab.okkam.it/tepparma/doveSiamo.html";
  boolean isGPSEnabled = false;
  boolean isNetworkEnabled = false;
  private LocationManager locMan;
  private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 2; // 2 meters
  private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute
      
    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
    }

    @Override
    public View onCreateView(LayoutInflater inflater,ViewGroup container, Bundle savedInstanceState) {
      
        View view = inflater.inflate(R.layout.fragment_calcolapercorso, container, false); 
        initLoc(locMan);
        updatePlaces();    
        if (curURL != null) {

            myWebView = (WebView) view.findViewById(R.id.webview);
            progressBar = (ProgressBar) view.findViewById(R.id.progressBar1);
            myWebView.getSettings().setJavaScriptEnabled(true);
            myWebView.getSettings().setLoadWithOverviewMode(true);
            myWebView.getSettings().setUseWideViewPort(true);
            myWebView.getSettings().setBuiltInZoomControls(true);
            myWebView.setWebViewClient(new myWebClient());
            myWebView.loadUrl(curURL);
        }
        return view;
    }
    public Location getLocation(long MIN_DISTANCE, long MIN_TIME ) {
    Location location = null; 
  try {

        LocationManager locationManager = (LocationManager)getActivity().getSystemService(Context.LOCATION_SERVICE);
  
          boolean isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
          boolean isNetworkEnabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
  
          if (!isGPSEnabled && !isNetworkEnabled) {
    
          } else {
              if (isNetworkEnabled) {
                  if (locationManager != null) {
                      location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                  }
              }
              if (isGPSEnabled) {
                  if (location == null) {
                      if (locationManager != null) {
                          location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
                       
                      }
                  }
              }
          }
  
      } catch (Exception e) {
          e.printStackTrace();
      }
  
      return location;
  }

    public void updateUrl(String url) {
        curURL = url;
        myWebView = (WebView) getView().findViewById(R.id.webview);
        myWebView.getSettings().setJavaScriptEnabled(true);
        myWebView.loadUrl(url);
    }
    
    public boolean isOnline() {
      ConnectivityManager cm = (ConnectivityManager) getActivity().getSystemService(Context.CONNECTIVITY_SERVICE);
      NetworkInfo netInfo = cm.getActiveNetworkInfo();
      if (netInfo != null && netInfo.isConnectedOrConnecting()) {
          return true;
      }
      return false;
  }
  
  public void initLoc(LocationManager locMan){

    locMan = (LocationManager)getActivity().getSystemService(Context.LOCATION_SERVICE);
    isGPSEnabled = locMan.isProviderEnabled(LocationManager.GPS_PROVIDER);
    
    if(!isGPSEnabled)
    {
      Toast.makeText(getActivity(), "GPS non attivo. \nVai nelle opzioni per attivarlo.",Toast.LENGTH_SHORT).show();
    }
    if(!isOnline()){
      Toast.makeText(getActivity(), "Internet non attivo. \nVai nelle opzioni per attivarlo.",Toast.LENGTH_SHORT).show();
    }

    }
  
  private void updatePlaces() {
    
    locMan = (LocationManager)getActivity().getSystemService(Context.LOCATION_SERVICE);
    Location lastLoc = getLocation(MIN_DISTANCE_CHANGE_FOR_UPDATES,MIN_TIME_BW_UPDATES);
    
    if(lastLoc != null){

      double myLat = lastLoc.getLatitude();
      double myLon = lastLoc.getLongitude();
      curURL="http://lab.okkam.it/tepparma/doveSiamo.html?la="+myLat+"&lo="+myLon+"";
    }
  }
  
  @Override
  public void onDestroyView() {
      super.onDestroyView();
      try {
          Fragment fragment = (Fragment) getActivity().getFragmentManager().findFragmentById(R.id.webview);
          if (fragment != null)
              getFragmentManager().beginTransaction().remove(fragment).commit();
  
      } catch (IllegalStateException e) {
      }
  }

   public class myWebClient extends WebViewClient
      {
          @Override
          public void onPageStarted(WebView view, String url, Bitmap favicon) {
              super.onPageStarted(view, url, favicon);
          }
   
          @Override
          public boolean shouldOverrideUrlLoading(WebView view, String url) {
              view.loadUrl(url);
              return true;
          }
   
          @Override
          public void onPageFinished(WebView view, String url) {
              super.onPageFinished(view, url);
              progressBar.setVisibility(View.GONE);
          }
      }
  @Override
  public void onResume() {
    super.onResume();
    updatePlaces();
  }
  

}

Java Source Code List

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