/** Handles thumb selection and movement. Notifies listener callback on certain events. */
@Override
public boolean onTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
pressedThumb = evalPressedThumb(event.getX());
invalidate();
break;
case MotionEvent.ACTION_MOVE:
if (pressedThumb != null) {
if (Thumb.MIN.equals(pressedThumb)) {
setNormalizedMinValue(screenToNormalized(event.getX()));
} else if (Thumb.MAX.equals(pressedThumb)) {
setNormalizedMaxValue(screenToNormalized(event.getX()));
}
if (notifyWhileDragging && listener != null) {
listener.rangeSeekBarValuesChanged(getSelectedMinValue(), getSelectedMaxValue());
}
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
pressedThumb = null;
invalidate();
if (listener != null) {
listener.rangeSeekBarValuesChanged(getSelectedMinValue(), getSelectedMaxValue());
}
break;
}
return true;
}
