DcMotor Android Mainactivity

MainActivity.java

package dcmotor.lge.com.dcmotor;

import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.view.View.OnClickListener;


public class MainActivity extends BlunoLibrary {
    private Button buttonScan;
    private Button buttonSerialSend;
    private EditText serialSendText;
    private TextView serialReceivedText;
    private TextView leftSpeed;
    private TextView rightSpeed;

    private final static String LEFT_UP  = "L";
    private final static String RIGHT_UP = "R";
    private final static String LEFT_DOWN  = "l";
    private final static String RIGHT_DOWN = "r";

    private int speedLeft = 0;
    private int speedRight = 0;
    private Button buttonLeftUp;
    private Button buttonLeftDown;
    private Button buttonRightUp;
    private Button buttonRightDown;

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

        onCreateProcess();
        serialBegin(115200);
        serialReceivedText=(TextView) findViewById(R.id.serialReveicedText);
        serialSendText=(EditText) findViewById(R.id.serialSendText);

        buttonSerialSend = (Button) findViewById(R.id.buttonSerialSend);
        buttonSerialSend.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                int data = Integer.valueOf(serialSendText.getText().toString());
                serialSend( String.valueOf(data << 8 | data) );
            }
        });

        buttonScan = (Button) findViewById(R.id.buttonScan);
        buttonScan.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
            buttonScanOnClickProcess();
            }
        });

        leftSpeed = (TextView) findViewById(R.id.text_speed_left);
        rightSpeed = (TextView) findViewById(R.id.text_speed_right);

        buttonLeftUp    = (Button) findViewById(R.id.btn_up_left);
        buttonLeftUp.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                sendSpeedInfo(LEFT_UP);
            }
        });
        buttonLeftDown  = (Button) findViewById(R.id.btn_down_left);
        buttonLeftDown.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                sendSpeedInfo(LEFT_DOWN);
            }
        });
        buttonRightUp   = (Button) findViewById(R.id.btn_up_right);
        buttonRightUp.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                sendSpeedInfo(RIGHT_UP);
            }
        });
        buttonRightDown = (Button) findViewById(R.id.btn_down_right);
        buttonRightDown.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                sendSpeedInfo(RIGHT_DOWN);
            }
        });

        leftSpeed.setText(String.valueOf(speedLeft));
        rightSpeed.setText(String.valueOf(speedRight));
    }

    private void sendSpeedInfo(String str) {
        serialSend(str);
    }

    private void sendSpeed() {
        serialSend(String.valueOf(speedLeft << 8 | speedRight));
        leftSpeed.setText(String.valueOf(speedLeft));
        rightSpeed.setText(String.valueOf(speedRight));
    }

    @Override
    protected void onResume() {
        super.onResume();
        System.out.println("BlUNOActivity onResume");
        onResumeProcess();														//onResume Process by BlunoLibrary
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        onActivityResultProcess(requestCode, resultCode, data);					//onActivityResult Process by BlunoLibrary
        super.onActivityResult(requestCode, resultCode, data);
    }

    @Override
    protected void onPause() {
        super.onPause();
        onPauseProcess();														//onPause Process by BlunoLibrary
    }

    protected void onStop() {
        super.onStop();
        onStopProcess();														//onStop Process by BlunoLibrary
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        onDestroyProcess();														//onDestroy Process by BlunoLibrary
    }

    @Override
    public void onConectionStateChange(connectionStateEnum theConnectionState) {//Once connection state changes, this function will be called
        switch (theConnectionState) {											//Four connection state
            case isConnected:
                buttonScan.setText("Connected");
                break;
            case isConnecting:
                buttonScan.setText("Connecting");
                break;
            case isToScan:
                buttonScan.setText("Scan");
                break;
            case isScanning:
                buttonScan.setText("Scanning");
                break;
            case isDisconnecting:
                buttonScan.setText("isDisconnecting");
                break;
            default:
                break;
        }
    }

    @Override
    public void onSerialReceived(String theString) {							//Once connection data received, this function will be called
//      serialReceivedText.append(theString);							//append the text into the EditText
        String[] splited = theString.split(",");
        if ( splited.length == 2 ) {
            String sl = splited[0].trim();
            String sr = splited[1].trim();
            leftSpeed.setText(sl);
            rightSpeed.setText(sr);
        }
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}