Touch Notifier

TouchNotifier.java

package learnlejos;

import lejos.nxt.SensorPort;
import lejos.nxt.TouchSensor;

import java.util.ArrayList;


/**
 * Created by blakebishop on 5/20/14.
 */
public class TouchNotifier implements Runnable {
    private ArrayList<ITouchListener> listeners;
    private TouchSensor touchSensor = new TouchSensor(SensorPort.S1);
    @Override
    public void run() {
        listeners = new ArrayList<>();
        while(true) {
            if(touchSensor.isPressed())
            {
                for(ITouchListener listener : listeners) {
                    listener.changeState();
                }
            }
        }
    }

    public void register(ITouchListener listener) {
        listeners.add(listener);
    }

    public void unregister(ITouchListener listener) {
        listeners.remove(listener);
    }
}