Android Open Source - RoboDroid Simple Joystick Fragment

From Project

Back to project page RoboDroid.

License

The source code is released under:

Apache License

If you think the Android project RoboDroid 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 ch.bfh.mobilecomputing.fs2014.robodroid;
//w  w  w . j  a  v a2s . c om
import android.app.Fragment;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import ch.bfh.mobilecomputing.fs2014.robodroid.JoystickView.JoystickEvent;
import ch.quantasy.remoteControl.MotorApplication;

/**
 * A placeholder fragment containing a simple view.
 */
public class SimpleJoystickFragment extends Fragment implements JoystickEvent {
  private static final int VELOCITY_SCALE = 32767;
  private TextView log;

  private MotorApplication motor;

  public SimpleJoystickFragment() {
    motor = MotorApplication.INSTANCE;
  }

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_joystick_simple,
        container, false);
    JoystickView joystick = (JoystickView) rootView
        .findViewById(R.id.joystick);
    joystick.addEventListener(this);

    log = (TextView) rootView.findViewById(R.id.log);

    return rootView;
  }

  @Override
  public void onJoystickMove(final float x, final float y) {
    int vdc1 = (int) (x * VELOCITY_SCALE);
    int vdc2 = (int) (y * VELOCITY_SCALE);
    motor.setVelocityDC1(vdc1);
    motor.setVelocityDC2(vdc2);

    log.setText(String.format("x=%.4f\ny=%+.4f\n?=%+.4f\nv=%+.4f", x, y,
        JoystickView.getAngle(x, y), JoystickView.getValue(x, y)));
  }
}

Java Source Code List