Current Download/Upload Speed in Android

Question

All,

I am newbie in android, just developing app to display the current Download/Upload Speed. I have got some tips from this Example. It uses TrafficStats.getTotalRxBytes() function that returns the total Bytes received after boot and increases monotonically.

So i used the below code, to display only the Current Available Speed. But i am not getting the result. it displays the Total Tx/Rx values only.

1. Is there any Alternative to achieve this? Any Code snippets would be much appreciated as i am a complete beginner.

2. Also, i cant understand below code. Can some one explain this?

   private final Runnable mRunnable = new Runnable() 
   

3. i need to refresh the data displayed in textView for every one second. I Guess

     mHandler.postDelayed(mRunnable, 1000) ( );   
   

   is used to do that. is there any alternative? if not, how does would be the control flow when using PostDelayed function? (I am bit confused)

   public class MainActivity extends Activity {
   
   private Handler mHandler = new Handler();
   private long mStartRX =0;
   private long mStartTX = 0;
   private static final int RESULT_SETTINGS = 1;
   @Override
   protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       mHandler.postDelayed(mRunnable, 1000);
   
   }
   private final Runnable mRunnable = new Runnable() 
   {
   
         public void run() 
         {
   
           long TxResult=0;
           long RxResult=0;
           long or1=0,or2=0;
   
           long rxBytes = TrafficStats.getTotalRxBytes()- mStartRX-or1; 
   
           if (rxBytes<1024)
           {
               RxResult=0;
   
           }
          else if (rxBytes>1024)
          {
              // RxResult=0;
              RxResult=RxResult+(rxBytes/1024);
          }
          TextView RX = (TextView)findViewById(R.id.rxOut);
          //mStartRX=rxBytes;
          TextView TX = (TextView)findViewById(R.id.txOut);
          RX.setText(Long.toString(RxResult));
          long txBytes = TrafficStats.getTotalTxBytes()- mStartTX-or2;
          if (txBytes<1024)
          {
              TxResult=0;
          }
          else if (txBytes>1024)
          {
              TxResult=0;
              TxResult=TxResult+(txBytes/1024);
          }
   
          TX.setText(Long.toString(TxResult));
          or2=or2+txBytes;
           or1=or1+rxBytes;
           mHandler.postDelayed(mRunnable, 100);
   
          }
    };