Android Open Source - GeoNFC Main Activity

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License

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

package com.nfc.geo.geonfc;
//w  w w . j  av  a 2 s. c  o  m
import java.io.IOException;
import java.util.ArrayList;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager.NameNotFoundException;
import android.location.Location;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.support.v4.app.Fragment;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;

import com.nfc.geo.geonfc.database.InfoEntity;
import com.nfc.geo.geonfc.database.QueryInsertUpdate;
import com.nfc.geo.geonfc.deviceinfo.DeviceInformation;
import com.nfc.geo.geonfc.interfaces.MainInterface;
import com.nfc.geo.geonfc.tcp.TCPConnection;
import com.nfc.geo.geonfc.utils.FileHandler;

public class MainActivity extends Fragment implements MainInterface{

  private TextView text_tag,imei_text,version_text,gps_text, acerque_tel;
  private TCPConnection conn;
  private DeviceInformation dinf;  
  private QueryInsertUpdate queryInsert;
  private Button salir,imei;
  private View vi;
  private FileHandler fileHandler;
  private BroadcastReceiver mNetworkStateIntentReceiver;
  private IntentFilter mNetworkStateChangedFilter;
  private ArrayList<String> fileIdioma;
  private String[] textos_botons;

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    vi = inflater.inflate(R.layout.activity_main, null);

    fileHandler = new FileHandler();
    fileIdioma = new ArrayList<String>();
    textos_botons =  new String [8];

    text_tag = (TextView) vi.findViewById(R.id.tag_id);
    acerque_tel = (TextView) vi.findViewById(R.id.tag_leida);

    text_tag.addTextChangedListener(new TextWatcher() {      
      @Override
      public void onTextChanged(CharSequence s, int start, int before, int count) {}

      @Override
      public void beforeTextChanged(CharSequence s, int start, int count,
          int after) {}

      @Override
      public void afterTextChanged(final Editable s) {
        final Handler handler=new Handler();        
        Runnable runnable=new Runnable(){  
          @Override  
          public void run() {  
            s.replace(0, s.length(), "Tag ID:");
          }  
        };        
        handler.postDelayed(runnable, 10000);
      }
    });

    version_text = (TextView) vi.findViewById(R.id.version_number);

    try {
      version_text.setText(""+getActivity().getPackageManager().getPackageInfo(getActivity().getPackageName(), 0).versionName);
    } catch (NameNotFoundException e1) {
      e1.printStackTrace();
    }

    imei_text = (TextView) vi.findViewById(R.id.imei_text);
    gps_text = (TextView) vi.findViewById(R.id.gps_text);
    imei = (Button) vi.findViewById(R.id.imei);
    salir = (Button) vi.findViewById(R.id.exit);

    dinf = new DeviceInformation(getActivity(), MainActivity.this);

    imei.setOnClickListener(new OnClickListener() {      
      @Override
      public void onClick(View v) {
        imei_text.setText(dinf.getDeviceImei(getActivity()));
      }
    });

    salir.setOnClickListener(new OnClickListener() {      
      @Override
      public void onClick(View v) {
        getActivity().finish();
      }
    });

    queryInsert = new QueryInsertUpdate(getActivity());

    conn = new TCPConnection(getActivity(),dinf);    

    mNetworkStateChangedFilter = new IntentFilter();
    mNetworkStateChangedFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);

    mNetworkStateIntentReceiver = new BroadcastReceiver() {      
      @Override
      public void onReceive(Context context, Intent intent) {
        if(intent.getAction().equals(ConnectivityManager.CONNECTIVITY_ACTION)){
          ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService( Context.CONNECTIVITY_SERVICE);
          NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();

          if ( activeNetInfo != null ){
            //send info
            queryInsert.open();
            ArrayList<InfoEntity> ii = queryInsert.getInfo();

            if(!ii.isEmpty())
            {
              for (InfoEntity infoEntity : ii) {
                String sendData = "";

                if(infoEntity.getType().equals("NFC"))
                  sendData = conn.buildData(0,infoEntity.getTag_id(), infoEntity);
                else
                  sendData = conn.buildData(1,null, infoEntity);

                conn.setInfEnti(infoEntity);
                conn.sendInfo(sendData);

                if(conn.isHasSent())
                  queryInsert.deleteInfo(infoEntity.getId());
              }

              queryInsert.close();
            }
          }
        }
      }
    };

    /*
     * Cambio de los textos de acuerdo con los idiomas en lo fichero de config.ini
     * */    
    try {
      fileIdioma = fileHandler.readFile(getActivity().getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS).getCanonicalPath());

      if(fileIdioma.size() > 5)
      {
        textos_botons[0]= fileIdioma.get(5).split("  = ")[1];
        textos_botons[1]= fileIdioma.get(6).split("  = ")[1];
        textos_botons[2]= fileIdioma.get(7).split("  = ")[1];
        textos_botons[3]= fileIdioma.get(8).split("  = ")[1];

        salir.setText(""+textos_botons[0]);
        acerque_tel.setText(""+textos_botons[3]);
      }
    } catch (IOException e) {
      //Do nothing
    }

    return vi;
  }

  @Override
  public void onResume() {
    super.onResume();

    getActivity().registerReceiver(mNetworkStateIntentReceiver, mNetworkStateChangedFilter);
    getActivity().setIntent(new Intent());
  }

  @Override
  public void onDestroy() {
    super.onDestroy();
    System.exit(0);    
  }

  @Override
  public void onPause() {    
    super.onPause();

    text_tag.setText("Tag ID:");
    getActivity().unregisterReceiver(mNetworkStateIntentReceiver);
  }  

  public boolean checkConn()
  {
    ConnectivityManager connectivityManager = (ConnectivityManager) getActivity().getSystemService( Context.CONNECTIVITY_SERVICE );
    NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();

    if(activeNetInfo != null)
    {
      if(activeNetInfo.getState() == NetworkInfo.State.CONNECTED)
        return true;
      else
        return false;
    }      
    else    
      return false;
  }

  public void changeGPSText(Location loc)
  {
    gps_text.setText(textos_botons[1]+": " + loc.getLatitude() + "\n"+textos_botons[2]+": " + loc.getLongitude());
  }

  public void changeGPSText(String value)
  {
    gps_text.setText(value);
  }

  @Override
  public void changeTagText(String value) 
  {
    text_tag.setText(value);
  }
}
Java Source Code List
