Android Open Source - PolarHeartRateApplication Main Activity

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From Project

Back to project page PolarHeartRateApplication.

License

The source code is released under:

MIT License

Java Source Code

package org.marco45.polarheartmonitor;
//ww w .  ja v a 2s  . c o m
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Observable;
import java.util.Observer;
import java.util.Set;

import com.androidplot.xy.LineAndPointFormatter;
import com.androidplot.xy.PointLabelFormatter;
import com.androidplot.xy.XYPlot;
import com.androidplot.xy.SimpleXYSeries;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;
import com.google.android.gms.analytics.GoogleAnalytics;
import com.google.android.gms.analytics.HitBuilders;
import com.google.android.gms.analytics.Tracker;

import android.app.Activity;
import android.app.AlertDialog;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;


/**
 * This program connect to a bluetooth polar heart rate monitor and display data
 * @author Marco
 *
 */
public class MainActivity extends Activity  implements OnItemSelectedListener, Observer {

  private int MAX_SIZE = 60; //graph max size
  
  boolean searchBt = true;
  //ConnectThread reader;
  BluetoothAdapter mBluetoothAdapter;
  Set<BluetoothDevice> pairedDevices;
  boolean menuBool = false;
  //int i =0;
  private XYPlot plot;
  //SimpleXYSeries series1;
  Tracker t;//Set the Tracker


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

    DataHandler.getInstance().addObserver(this);
    
    AdView mAdView = (AdView) findViewById(R.id.adView);

        // Create an ad request. Check logcat output for the hashed device ID to
        // get test ads on a physical device. e.g.
        // "Use AdRequest.Builder.addTestDevice("ABCDEF012345") to get test ads on this device."
        AdRequest adRequest = new AdRequest.Builder().build();

        // Start loading the ad in the background.
        mAdView.loadAd(adRequest);
        
    mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    if(DataHandler.getInstance().newValue){

      //Verify if bluetooth if activated, if not activate it
      mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();    
      if (!mBluetoothAdapter.isEnabled()) {
        new AlertDialog.Builder(this)
        .setTitle(R.string.bluetooth)
        .setMessage(R.string.bluetoothOff)
        .setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
          public void onClick(DialogInterface dialog, int which) { 
            mBluetoothAdapter.enable();
            try {Thread.sleep(2000);
            } catch (InterruptedException e) {
              e.printStackTrace();
            }
            listBT();
          }
        })
        .setNegativeButton(android.R.string.no, new DialogInterface.OnClickListener() {
          public void onClick(DialogInterface dialog, int which) { 
            searchBt = false;
          }
        })
        .show();

      }
      else{
        listBT();
      }



      // Create Graph
      plot = (XYPlot) findViewById(R.id.dynamicPlot);
      if(plot.getSeriesSet().size()==0){
        Number[] series1Numbers = {};
        DataHandler.getInstance().setSeries1(new SimpleXYSeries(Arrays.asList(series1Numbers),SimpleXYSeries.ArrayFormat.Y_VALS_ONLY,"Heart Rate")); 
      }
      DataHandler.getInstance().setNewValue(false);

    }
    else
    {
      listBT();
      plot = (XYPlot) findViewById(R.id.dynamicPlot);

    }
    //LOAD Graph
    LineAndPointFormatter series1Format = new LineAndPointFormatter( Color.rgb(0, 0, 255), Color.rgb(200, 200, 200), null, null ); 
    series1Format.setPointLabelFormatter(new PointLabelFormatter());
    plot.addSeries(DataHandler.getInstance().getSeries1(), series1Format); 
    plot.setTicksPerRangeLabel(3);
    plot.getGraphWidget().setDomainLabelOrientation(-45);

    //ANALYTIC
    t = GoogleAnalytics.getInstance(this).newTracker("UA-51478243-1");
    t.setScreenName("Polar main page");
    t.send(new HitBuilders.AppViewBuilder().build());

  }

  @Override
  protected void onDestroy(){
    super.onDestroy();
    DataHandler.getInstance().deleteObserver(this);
  }

  public void onStart(){
    super.onStart();



  }

  /**
   * Run on startup to list bluetooth paired device
   */
  public void listBT(){
    if(searchBt){
      //Discover bluetooth devices
      List<String> list = new ArrayList<String>();
      list.add("");
      pairedDevices = mBluetoothAdapter.getBondedDevices();
      // If there are paired devices
      if (pairedDevices.size() > 0) {
        // Loop through paired devices
        for (BluetoothDevice device : pairedDevices) {
          // Add the name and address to an array adapter to show in a ListView
          list.add(device.getName() + "\n" + device.getAddress());
        }
      }


      //Populate drop down
      Spinner spinner1 = (Spinner) findViewById(R.id.spinner1);
      ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this,
          android.R.layout.simple_spinner_item, list);
      dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
      spinner1.setOnItemSelectedListener(this);
      spinner1.setAdapter(dataAdapter);
      
      if(DataHandler.getInstance().getID()!=0)
        spinner1.setSelection(DataHandler.getInstance().getID());
    }
  }

  /**
   * When menu button are pressed
   */
  public boolean onOptionsItemSelected(MenuItem item) {
    int id = item.getItemId();
    if (id == R.id.action_settings) {
      DataHandler.getInstance().getReader().cancel();
      //DataHandler.getInstance().setReader(null);
      System.out.println("menu pes?");
      menuBool=false;
      return true;
    }
    else if (id==R.id.about){
      Intent intent = new Intent(this, AboutActivity.class);
      startActivity(intent);
    }
    return super.onOptionsItemSelected(item);
  }


  @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 onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
      long arg3) {



    if(arg2!=0){
      //Actual work
      DataHandler.getInstance().setID(arg2);
      DataHandler.getInstance().setReader(new ConnectThread((BluetoothDevice) pairedDevices.toArray()[arg2-1], this));
      DataHandler.getInstance().getReader().start();

      menuBool=true;

    }

  }

  @Override
  public boolean onPrepareOptionsMenu (Menu menu) {
    //menu.findItem(R.id.action_settings).setEnabled(menuBool);
    menu.findItem(R.id.action_settings).setVisible(false);//MENU OFF NOT WORKING
    return true;
  }

  @Override
  public void onNothingSelected(AdapterView<?> arg0) {


  }

  /**
   * Called when bluetooth connection failed
   */
  public void connectionError(){
    menuBool=false;
    runOnUiThread(new Runnable() {
      public void run() {
        Toast.makeText(getBaseContext(),getString(R.string.couldnotconnect),Toast.LENGTH_SHORT).show();
        TextView rpm = (TextView) findViewById(R.id.rpm);
        rpm.setText("0 BMP");
        Spinner spinner1 = (Spinner) findViewById(R.id.spinner1);
        spinner1.setSelection(DataHandler.getInstance().getID());
      }
    });
  }

  @Override
  public void update(Observable observable, Object data) {
    receiveData();    
  }

  /**
   * Update Gui with new value from receiver
   */
  public void receiveData(){    
    //ANALYTIC
    //t.setScreenName("Polar Bluetooth Used");
    //t.send(new HitBuilders.AppViewBuilder().build());

    runOnUiThread(new Runnable() {
      public void run() {
        menuBool=true;
        TextView rpm = (TextView) findViewById(R.id.rpm);
        rpm.setText(DataHandler.getInstance().getLastValue()+" BPM");

        if(DataHandler.getInstance().getLastValue()!=0){
          DataHandler.getInstance().getSeries1().addLast(0, DataHandler.getInstance().getLastValue());
          if(DataHandler.getInstance().getSeries1().size()>MAX_SIZE)
            DataHandler.getInstance().getSeries1().removeFirst();//Prevent graph to overload data.
          plot.redraw();
        }

        TextView min = (TextView) findViewById(R.id.min);
        min.setText("Min "+DataHandler.getInstance().getMin()+" BPM");

        TextView avg = (TextView) findViewById(R.id.avg);
        avg.setText("Avg "+DataHandler.getInstance().getAvg()+" BPM");

        TextView max = (TextView) findViewById(R.id.max);
        max.setText("Max "+DataHandler.getInstance().getMax()+" BPM");        
      }
    });
  }

}

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