public boolean onTouchEvent(final MotionEvent event) {
// these data are used in ACTION_MOVE and ACTION_CANCEL
final int pointerNumber = event.getPointerCount();
final int[] ids = new int[pointerNumber];
final float[] xs = new float[pointerNumber];
final float[] ys = new float[pointerNumber];
for (int i = 0; i < pointerNumber; i++) {
ids[i] = event.getPointerId(i);
xs[i] = event.getX(i);
ys[i] = event.getY(i);
}
switch (event.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_POINTER_DOWN:
final int idPointerDown = event.getAction() >> MotionEvent.ACTION_POINTER_ID_SHIFT;
final float xPointerDown = event.getX(idPointerDown);
final float yPointerDown = event.getY(idPointerDown);
queueEvent(
new Runnable() {
@Override
public void run() {
mRenderer.handleActionDown(idPointerDown, xPointerDown, yPointerDown);
}
});
break;
case MotionEvent.ACTION_DOWN:
// there are only one finger on the screen
final int idDown = event.getPointerId(0);
final float xDown = event.getX(idDown);
final float yDown = event.getY(idDown);
queueEvent(
new Runnable() {
@Override
public void run() {
mRenderer.handleActionDown(idDown, xDown, yDown);
}
});
break;
case MotionEvent.ACTION_MOVE:
queueEvent(
new Runnable() {
@Override
public void run() {
mRenderer.handleActionMove(ids, xs, ys);
}
});
break;
case MotionEvent.ACTION_POINTER_UP:
final int idPointerUp = event.getAction() >> MotionEvent.ACTION_POINTER_ID_SHIFT;
final float xPointerUp = event.getX(idPointerUp);
final float yPointerUp = event.getY(idPointerUp);
queueEvent(
new Runnable() {
@Override
public void run() {
mRenderer.handleActionUp(idPointerUp, xPointerUp, yPointerUp);
}
});
break;
case MotionEvent.ACTION_UP:
// there are only one finger on the screen
final int idUp = event.getPointerId(0);
final float xUp = event.getX(idUp);
final float yUp = event.getY(idUp);
queueEvent(
new Runnable() {
@Override
public void run() {
mRenderer.handleActionUp(idUp, xUp, yUp);
}
});
break;
case MotionEvent.ACTION_CANCEL:
queueEvent(
new Runnable() {
@Override
public void run() {
mRenderer.handleActionCancel(ids, xs, ys);
}
});
break;
}
if (debug) {
dumpEvent(event);
}
return true;
}
