Android Open Source - BusTicketer Show Tickets Fragment

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License

The source code is released under:

Copyright (c) 2013, Nelspike All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Red...

Java Source Code

package bus.ticketer.fragments;
//  w ww . java2s  . co  m
import java.util.ArrayList;

import android.annotation.SuppressLint;
import android.content.Intent;
import android.nfc.NdefMessage;
import android.nfc.NdefRecord;
import android.nfc.NfcAdapter;
import android.nfc.NfcAdapter.CreateNdefMessageCallback;
import android.nfc.NfcAdapter.OnNdefPushCompleteCallback;
import android.nfc.NfcEvent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v4.app.Fragment;
import android.util.SparseArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;
import bus.ticketer.connection.ConnectionThread;
import bus.ticketer.objects.Ticket;
import bus.ticketer.passenger.BusTicketer;
import bus.ticketer.passenger.R;
import bus.ticketer.runnable.ShowRunnable;
import bus.ticketer.utils.FileHandler;
import bus.ticketer.utils.Method;
import bus.ticketer.utils.RESTFunction;

public class ShowTicketsFragment extends Fragment implements CreateNdefMessageCallback, OnNdefPushCompleteCallback {

  private NfcAdapter myNFC;
  private View rootView;
  private RESTFunction currentFunction;
  private String IPAddress = "";
  private BusTicketer app;
  private final int MESSAGE_SENT = 1;

  @SuppressLint("HandlerLeak")
  private Handler threadConnectionHandler = new Handler() {
    @Override
    public void handleMessage(Message msg) {
      
    }
  };
  
  @SuppressLint("HandlerLeak")
  private Handler nfcHandler = new Handler() {
    @Override
    public void handleMessage(Message msg) {
      switch(msg.what) {
        case MESSAGE_SENT:
          break;
      }
    }
  };
  
  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    setRetainInstance(true);
    rootView = inflater.inflate(R.layout.fragment_show_tickets, container, false);
    app = (BusTicketer) getActivity().getApplication();
    IPAddress = app.getIPAddress();
    
    myNFC = NfcAdapter.getDefaultAdapter(getActivity());
    if(myNFC == null) {
      Toast.makeText(getActivity(), "You have no NFC, please try with another device that has NFC!", Toast.LENGTH_SHORT).show();
    }    
    
    myNFC.setNdefPushMessageCallback(this, getActivity());
    myNFC.setOnNdefPushCompleteCallback(this, getActivity());
    
    getTicketInfo();
    
    return rootView;
  }
  
  @Override
  public void onResume() {
    super.onResume();
    if(NfcAdapter.ACTION_NDEF_DISCOVERED.equals(getActivity().getIntent().getAction()))
      processIntent(getActivity().getIntent());
  }
  
  private void processIntent(Intent intent) {

  }
  
  
  public void refresh() {
    getTicketInfo();
  }
    
  private void getTicketInfo() {
    FileHandler fHandler = new FileHandler(app.getClientFilename(), "");
    ArrayList<String> fileContents = fHandler.readFromFile();

    if(!app.isNetworkAvailable()) {
      SparseArray<ArrayList<Ticket>> tickets = FileHandler.getTicketCount();
      app.setTickets(tickets);
      rootView.post(new ShowRunnable(app, getActivity(), rootView));
    }
    else {
      currentFunction = RESTFunction.GET_CLIENT_TICKETS;
      
      ConnectionThread dataThread = new ConnectionThread(
          IPAddress+"list/" + fileContents.get(2),
          Method.GET, null, threadConnectionHandler, null,
          currentFunction, rootView, getActivity());
      dataThread.start();
    }
  }

  @Override
  public void onNdefPushComplete(NfcEvent event) {
    nfcHandler.obtainMessage(MESSAGE_SENT).sendToTarget();
  }

  @Override
  public NdefMessage createNdefMessage(NfcEvent event) {
    String test = "";
    if(app.getTicketID() != -1) {
      test = "ID:"+app.getTicketID();
    }
    else return null;
    
    NdefMessage msg = new NdefMessage(new NdefRecord[] {
      NdefRecord.createMime("application/bus.ticketer.message", test.getBytes())
    });
    return msg;
  }
}

Java Source Code List

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