Android Open Source - NFCSocket Main Activity

• Back to Development/socket  ↑

From Project

Back to project page NFCSocket.

License

The source code is released under:

Apache License

Java Source Code

package com.chrisplus.nfcsocketexample;
/*  w ww. j  a va  2s  .  c o m*/
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import com.chrisplus.nfcsocket.NfcClientSocket;
import com.chrisplus.nfcsocket.NfcServerSocket;

public class MainActivity extends Activity {

  private Button startServer;
  private Button stopServer;
  private Button send;
  private TextView console;
  private EditText message;
  private Context context;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    context = getApplicationContext();
    startServer = (Button) findViewById(R.id.startserver);
    stopServer = (Button) findViewById(R.id.stopserver);

    send = (Button) findViewById(R.id.send);
    console = (TextView) findViewById(R.id.text);
    message = (EditText) findViewById(R.id.message);

    startServer.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        NfcClientSocket.getInstance(getApplicationContext())
            .unregister(clientListener);
        NfcServerSocket.getInstance(getApplicationContext())
            .setListener(serverListener);
        NfcServerSocket.getInstance(getApplicationContext()).listen();

      }

    });

    stopServer.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        NfcClientSocket.getInstance(getApplicationContext()).register(
            clientListener);
        NfcServerSocket.getInstance(getApplicationContext()).close();
      }

    });

    send.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {

        if (!NfcClientSocket.getInstance(getApplicationContext())
            .isConnected()) {
          int i = NfcClientSocket
              .getInstance(getApplicationContext()).connect();
          Log.d("BTR", i + "");
          if (i == NfcClientSocket.CONNECT_SUCCESS) {
            String tmp = getMessage();
            appendMessage(false, tmp);
            byte[] response = NfcClientSocket.getInstance(
                getApplicationContext()).send(
                    tmp.getBytes());
            showLog(response);
            appendMessage(true, new String(response));
          }
        } else {
          String tmp = getMessage();
          appendMessage(false, tmp);
          byte[] response = NfcClientSocket.getInstance(
              getApplicationContext()).send(tmp.getBytes());
          showLog(response);
          appendMessage(true, new String(response));
        }

        // NfcClientSocket.getInstance(getApplicationContext()).close();
      }

    });
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    if (id == R.id.action_settings) {
      return true;
    }
    return super.onOptionsItemSelected(item);
  }

  @Override
  protected void onResume() {
    super.onResume();
    NfcClientSocket.getInstance(getApplicationContext()).register(
        clientListener);
  }

  @Override
  protected void onPause() {
    super.onPause();
    NfcClientSocket.getInstance(getApplicationContext()).unregister(
        clientListener);
  }

  private NfcServerSocket.NfcServerSocketListener serverListener = new NfcServerSocket.NfcServerSocketListener() {

    @Override
    public byte[] onSelectMessage(byte[] message) {
      Log.d("BTR", "selectMessage");
      appendMessage(true, new String(message));
      appendMessage(false, "welcome");
      return "welcome".getBytes();
    }

    @Override
    public byte[] onMessage(byte[] message) {
      Log.d("BTR", "normalMessage");
      appendMessage(true, new String(message));
      appendMessage(false, "I know");
      return "I know".getBytes();
    }

  };

  private NfcClientSocket.NfcClientSocketListener clientListener = new NfcClientSocket.NfcClientSocketListener() {

    @Override
    public void onDiscoveryTag() {
      Log.d("BTR", "tag!");
    }

    @Override
    public Activity getCurrentActivity() {
      return MainActivity.this;
    }
  };

  private void showLog(byte[] res) {
    if (res != null) {
      Log.d("BTR", new String(res));
    }

  }

  private void appendMessage(boolean isReceive, String message) {
    if (console != null) {
      String tmp = "";
      if (isReceive) {
        tmp += "Receive: ";
      } else {
        tmp += "Send: ";
      }

      tmp = tmp + message+ "\n";
      console.append(tmp);
    }
  }
  
  private String getMessage(){
    if(message != null && message.getText().length() > 0){
      return message.getText().toString();
    }else{
      return "Hello";
    }
  }

}

Java Source Code List

• Back to Development/socket  ↑