Android Open Source - GeoCarDroid Start Menu

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License

The source code is released under:

GNU General Public License

Java Source Code

package com.geocar.geocarconnect;
/*from   ww  w.  j a  va 2s.  c o  m*/
import java.io.BufferedWriter;
import java.io.IOException;
import java.util.Set;

import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.preference.PreferenceManager;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.TextView;

import com.geocar.bluetooth.AlertType;
import com.geocar.bluetooth.BthDeviceManager;
import com.geocar.bluetooth.ConnectThread;
import com.geocar.bluetooth.ConnectedThread;
import com.geocar.bluetooth.ConnectionHandler;
import com.geocar.bluetooth.SocketHandler;

public class StartMenu extends Activity implements OnClickListener, SocketHandler  {
  
  @Override
  public boolean onMenuItemSelected(int featureId, MenuItem item) {
    if( item.getItemId() == R.id.action_settings ){
      //This is the settings      
      Intent intent = new Intent(this, PrefActivity.class);
      startActivity(intent);
      
    }
    return super.onMenuItemSelected(featureId, item);
  }
  private ImageButton mConnectButton;
  
  /*private static String BTH_DEVICE_NAME = "GeoCar";  
  private static String SPP_UUID = "00001101-0000-1000-8000-00805F9B34FB";
  
  // Get the default adapter
  private BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
  */
  
  private int REQUEST_ENABLE_BT = 2;
  private ConnectedThread mConnThread;
  private ConnectThread mConnection;
  private ConnectionHandler mHandler;
  private static final String STATUS = "STATUS";
  
  private Handler mGUIUpdate = new Handler(){

    @Override
    public void handleMessage(Message msg) {
      // TODO Auto-generated method stub
      super.handleMessage(msg);
      Bundle bundle = msg.getData();
      if( bundle != null ){
        if( bundle.getBoolean(STATUS) ){
          onStartLoading();
        }else{
          onStop();
        }
      }
    }
    
  };
  
  private void setStatus(boolean connected ){
    mConnectButton.setImageResource(connected?R.drawable.disconnect_button:R.drawable.connect_button);
    //mConnectButton.setText(connected?"Disconnect":"Connect");
    if( connected ){
      //Get Data from Device
      getDataFromGeoCar();
    }
  }
  
  private void onStartLoading(){
    View v =  findViewById( R.id.pbLoading );
    v.setVisibility(View.VISIBLE);
    
    ((TextView)findViewById(R.id.tvStatus)).setText(R.string.loading);
  }
  
  private void onStopLoading(){
    View v =  findViewById( R.id.pbLoading );
    v.setVisibility(View.INVISIBLE);
    
    ((TextView)findViewById(R.id.tvStatus)).setText(R.string.press_to_start);
  }
  
  public class ConnHandler extends ConnectionHandler{

    public ConnHandler(){
      super();
    }
    
    private BufferedWriter mOutput = null;
    
    public ConnectionHandler init(BufferedWriter output){
      mOutput = output;
      return this;
    }
    
    @Override
    public void handleMessage(Message msg) {
      super.handleMessage(msg);
      Bundle b = msg.getData();
      setStatus( b.getInt(STATUS, 0)>0 );
      
    }

    @Override
    protected void onDisconnect() {
      postMessage( false );
      mConnThread = null;
    }

    @Override
    protected void onDataReceived(String line) {
      //Debug print to see what's in
      System.out.println(line);      
      //Write to file
      if( mOutput!=null ){
        try {
          mOutput.write(line);
          mOutput.write("\n");          
          if(line.contains(">")){
            //this is the end
            mOutput.flush();
            mOutput.close();
            mOutput = null;
          }
        } catch (IOException e) {
          e.printStackTrace();
        }
      }
      
    }
  } ;
  
  /*private BluetoothDevice getDevice(String name){
    Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
    // If there are paired devices
    if (pairedDevices.size() > 0) {
        // Loop through paired devices
        for (BluetoothDevice device : pairedDevices) {
          if( device.getName().equals(name)){
            return device;
          }
        }
    }
    return null;
  }*/
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.start_menu);
    onStopLoading();
    
    BthDeviceManager manager = new BthDeviceManager();
    
    if (!manager.isEnabled()) {
        Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
        startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
    }
    
    mConnectButton = (ImageButton)findViewById(R.id.ibConnect);
    mConnectButton.setOnClickListener(this);
    
    ((Button)findViewById(R.id.button2)).setOnClickListener(this);;
    
    setStatus(false);
    
  }

  @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 void onClick(View v) {
    if( v.getId() == R.id.ibConnect ){      
      if(mHandler == null ){
        mHandler = new ConnHandler().init(FileManager.getNewOutputFile());
      }
      if( mConnThread !=null ){
        mConnThread.cancel();
        mConnThread = null;
      }
      if( mConnection!=null ){
        mConnection.cancel();
        mConnection = null;
        setStatus(false);
      }else{
        BthDeviceManager manager = new BthDeviceManager();
        BluetoothDevice device = manager.getGeoCar();
        //BluetoothDevice device = getDevice(BTH_DEVICE_NAME);
        if( device != null ){
           mConnection = new ConnectThread(device, BthDeviceManager.SPP_UUID, this);
           mConnection.start();
        }
      }
    }else if( v.getId() == R.id.button2 ){
      getDataFromGeoCar();
    }
  }

  private void getDataFromGeoCar(){    
    //Send a B to the device
    sendMessage( 'B' );
    sendMessage( 10 );
    sendMessage( 13 );
  }
  
  //this is running on a thread on the background so be careful  
  @Override
  public void onBthConnect( BluetoothSocket socket ){    
    mConnThread = new ConnectedThread( socket, mHandler );    
    mConnThread.start();
    
    postMessage(true);
  }

  private void postMessage(boolean connected ){
    Message msg = new Message();
    Bundle b = new Bundle();
      b.putInt(STATUS, (connected?1:0));
      msg.setData(b);
      mHandler.sendMessage(msg);
      
      Message msg2 = new Message();
      Bundle bundle = new Bundle();
      bundle.putBoolean(STATUS, connected);
      msg2.setData(bundle);
      mGUIUpdate.sendMessage(msg2);
  }

  private void sendMessage(int value) {
    if( mConnThread!=null ){
      mConnThread.write( new byte[]{(byte) value} );  
    }
  }
  
  private void sendMessage(char value) {
    // TODO Auto-generated method stub
    if( mConnThread!=null ){
      mConnThread.write( new byte[]{(byte) value} );  
    }
    
  }

}

Java Source Code List

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