Android Open Source - GlassToPhoneBluetooth Main Activity

From Project

Back to project page GlassToPhoneBluetooth.
License

The source code is released under:
MIT License
If you think the Android project GlassToPhoneBluetooth listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package com.zlglassworks.glassbluetoothtest;
/*  w  ww  .  j  a v  a  2s. c om*/
import java.io.UnsupportedEncodingException;

import ktlab.lib.connection.ConnectionCallback;
import ktlab.lib.connection.ConnectionCommand;
import ktlab.lib.connection.bluetooth.BluetoothConnection;
import ktlab.lib.connection.bluetooth.ClientBluetoothConnection;
import ktlab.lib.connection.bluetooth.ServerBluetoothConnection;
import android.bluetooth.BluetoothDevice;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.util.Base64;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.zlglassworks.glassbluetoothtest.DeviceSelectDialogFragment.BluetoothDevcieSelectListener;

public class MainActivity extends FragmentActivity implements BluetoothDevcieSelectListener {

  private static final String TAG = "GlassBluetoothRemoteDevice";
  
  private static final String DEVICE_SAVED_STATE = "device";

  private BluetoothDevice mDevice;
  private BluetoothConnection mSenderConnection;
  private BluetoothConnection mListenerConnection;

  private TextView mTextView;
  private Button mSendTestButton;
  private Button mConnectButton;
  private ImageView mImageView;


  public static final byte COMMAND_TEST = 1;

  public static final int COMMAND_ID_1 = 1;
  public static final int COMMAND_ID_2 = 1;

  private static final byte IMAGE_DATA = 42;
  private static final byte STRING_DATA = 43;

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

    getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
    
    mTextView = (TextView) findViewById(R.id.text_view);
    mSendTestButton = (Button) findViewById(R.id.send_test_button);
    mConnectButton = (Button) findViewById(R.id.connect_to_bluetooth_button);
    mImageView = (ImageView) findViewById(R.id.image_view);

    mSendTestButton.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        Log.i(TAG, "sending data");
        mSenderConnection.sendData(COMMAND_TEST, COMMAND_ID_1);
      }
    });
    
    mConnectButton.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        Log.i(TAG, "showing selection dialog");
        showSelectionDialog();
      }
    });

    if (savedInstanceState != null) {
      mDevice = savedInstanceState.getParcelable(DEVICE_SAVED_STATE);
    }
  }

  @Override
  protected void onStart() {
    super.onStart();
    
    startBluetoothListener();
  }

  @Override
  protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    
    if (mDevice != null) {
      outState.putParcelable(DEVICE_SAVED_STATE, mDevice);
    }
  }
  
  @Override
  protected void onStop() {
    if (mSenderConnection != null) {
      mSenderConnection.stopConnection();
    }
    if (mListenerConnection != null) {
      mListenerConnection.stopConnection();
    }

    super.onStop();
  }

  // Helpers

  private void startBluetoothListener() {
    mListenerConnection = new ServerBluetoothConnection(new ConnectionCallback() {

      private Bitmap mBitmap;

      @Override
      public void onConnectComplete() {
        Log.i(TAG, "Server#onConnectComplete");
      }

      @Override
      public void onConnectionFailed() {
        Log.i(TAG, "Server#onConnectionFailed");
      }

      @Override
      public void onDataSendComplete(int id) {
        Log.i(TAG, "Server#onDataSendComplete");
      }

      @Override
      public void onCommandReceived(ConnectionCommand command) {
        Log.i(TAG, "Server#onCommandReceived");

        switch (command.type) {
        case IMAGE_DATA:
          mBitmap = BitmapFactory.decodeByteArray(command.option, 0, command.optionLen);
          mTextView.setText("IMAGE_DATA (" + command.type + ") :: " + command.optionLen + " :: " + command.option.length);
          mImageView.setImageBitmap(mBitmap);
          break;
        case STRING_DATA:
          try {
            String stringSent = new String(Base64.decode(command.option, Base64.DEFAULT), "UTF-8");
            mTextView.setText("STRING_DATA : " + stringSent);
          } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
          }
          break;
        default:
          mTextView.setText("Received data of type: " + command.type);
          break;
        }
      }
    }, true);
    mListenerConnection.startConnection();
  }

  private void startBluetoothSender() {
    if (mDevice == null) {
      mTextView.setText("No Device");
    } else {
      mSenderConnection = new ClientBluetoothConnection(new ConnectionCallback() {

        @Override
        public void onConnectComplete() {
          Log.i(TAG, "Client#onConnectComplete");
          mTextView.setText("Connected to: '" + mDevice.getName() + "'");
          mSendTestButton.setEnabled(true);
        }

        @Override
        public void onConnectionFailed() {
          Log.i(TAG, "Client#onConnectionFailed");
          String name = mDevice.getName();
          mTextView.setText("Failed to connect to: '" + name + "'");
          mSendTestButton.setEnabled(false);
          mDevice = null;
        }

        @Override
        public void onDataSendComplete(int id) {
          Log.i(TAG, "Client#onDataSendComplete");
        }

        @Override
        public void onCommandReceived(ConnectionCommand command) {
          Log.i(TAG, "Client#onCommandReceived");
        }
      }, true, mDevice);
      mSenderConnection.startConnection();
    }
  }

  // Device Selection
  
  private void showSelectionDialog() {
    DeviceSelectDialogFragment newFragment = new DeviceSelectDialogFragment();
        newFragment.show(getFragmentManager(), "dialog");
    }
  
  //
  
  @Override
  public void onDeviceSelected(BluetoothDevice device) {
    mDevice = device;
    if (mSenderConnection != null) {
      mSenderConnection.stopConnection();
    }
    startBluetoothSender();
  }

  @Override
  public void noBluetoothDevices() {
    mDevice = null;
    Toast.makeText(this, "No Bluetooth Devices", Toast.LENGTH_SHORT).show();
  }
}
Java Source Code List
