An Android Game Development Framework - Beginning Android Games - page 210

public int getTouchY( int pointer) {
synchronized ( this ) {
return touchY;
}
}
The methods isTouchDown() , getTouchX() , and getTouchY() allow us to poll the state of the
touchscreen based on the members that we set in the onTouch() method. The only noticeable
thing about them is that they only return useful data for a pointer ID with a value of zero, since
this class only supports single-touch screens.
public List<TouchEvent>getTouchEvents() {
synchronized ( this ) {
int len=touchEvents.size();
for ( int i=0; i<len; i++ )
touchEventPool.free(touchEvents.get(i));
touchEvents.clear();
touchEvents.addAll(touchEventsBuffer);
touchEventsBuffer.clear();
return touchEvents;
}
}
}
The final method, SingleTouchHandler.getTouchEvents() , should be familiar to you, and is
similar to the KeyboardHandler.getKeyEvents() methods. Remember that we call this method
frequently so that the touchEvents list doesn't fill up.
The MultiTouchHandler
For multitouch handling, we use a class called MultiTouchHandler , as shown in Listing 5-11.
Listing 5-11. MultiTouchHandler.java (More of the Same)
package com.badlogic.androidgames.framework.impl;
import java.util.ArrayList;
import java.util.List;
import android.view.MotionEvent;
import android.view.View;
import com.badlogic.androidgames.framework.Input.TouchEvent;
import com.badlogic.androidgames.framework.Pool;
import com.badlogic.androidgames.framework.Pool.PoolObjectFactory;
@TargetApi(5)
public class MultiTouchHandler implements TouchHandler {
private static final int MAX_TOUCHPOINTS =10;