BluetoothDevicesListActivity.java

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package com.riverlab.robotmanager.bluetooth;

import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.Context;
import android.content.Intent;
import android.media.AudioManager;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.WindowManager;
import android.widget.AdapterView;

import com.google.android.glass.media.Sounds;
import com.google.android.glass.widget.CardScrollView;
import com.riverlab.robotmanager.R;
import com.riverlab.robotmanager.RobotManagerApplication;
import com.riverlab.robotmanager.R.id;
import com.riverlab.robotmanager.R.menu;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;

public class BluetoothDevicesListActivity extends Activity implements AdapterView.OnItemClickListener {

        BluetoothAdapter mBluetoothAdapter;
        List<BluetoothDevice> mBondedDevices;
        CardScrollView mCardScrollView;
        BluetoothDevice mSelectedDevice;
        BluetoothDeviceCardScrollAdapter adapter;
        BluetoothSocket btSocket;
        RobotManagerApplication mApplication;

        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);

                mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();

                mCardScrollView = new CardScrollView(this);
                mCardScrollView.activate();
                mCardScrollView.setOnItemClickListener(this);
                mApplication = ((RobotManagerApplication) this.getApplication());
                setContentView(mCardScrollView);
        }

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

                Set<BluetoothDevice> devices = mBluetoothAdapter.getBondedDevices();
                mBondedDevices = new ArrayList<BluetoothDevice>(devices);
                adapter = new BluetoothDeviceCardScrollAdapter(this, mBondedDevices);
                mCardScrollView.setAdapter(adapter);
                getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
        }

        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                mSelectedDevice = (BluetoothDevice) mCardScrollView.getItemAtPosition(position);
                AudioManager audio = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
                audio.playSoundEffect(Sounds.TAP);
                openOptionsMenu();
        }

        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
                MenuInflater inflater = getMenuInflater();
                inflater.inflate(R.menu.device, menu);

                return true;
        }

        @Override
        public boolean onMenuItemSelected(int featureId, MenuItem item) {
                switch (item.getItemId()) {
                case R.id.connectMenuItem:
                        //Connect to mSelectedDevice
                        
                        Handler connectedHandler = mApplication.getConnectedThreadHandler();
                        Message msg = connectedHandler.obtainMessage(ConnectedThread.CONNECT_MESSAGE, mSelectedDevice.getName());
                        connectedHandler.sendMessage(msg);
                        
                        long now = System.currentTimeMillis();
                        int threshold = 2000;
                        
                        while(!mApplication.getConnectionStatus() && System.currentTimeMillis() - now < threshold);
                        
                        if (mApplication.getConnectionStatus())
                        {
                                Intent returnIntent = new Intent();
                                returnIntent.putExtra("result", "Success");
                                setResult(RESULT_OK,returnIntent);     
                                finish();
                        } else
                        {       
                                Intent returnIntent = new Intent();
                                returnIntent.putExtra("result", "Failure");
                                setResult(RESULT_OK,returnIntent);     
                                finish();
                        }
                        return true;
                default:
                        return super.onOptionsItemSelected(item);
                }
        }

        
}