如何为不可滑动的ViewPager添加页面更改侦听器？

Question

我的非滑动ViewPager自定义类如下。如何获取ViewPager侦听器调用的更改？

public class NonSwipeableViewPager extends ViewPager {

    private boolean isPagingEnabled = false;

    public NonSwipeableViewPager(Context context) {
        super(context);
    }

    public NonSwipeableViewPager(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent event) {
        return isPagingEnabled && super.onInterceptTouchEvent(event);
    }

    @SuppressLint("ClickableViewAccessibility")
    @Override
    public boolean onTouchEvent(MotionEvent event) {
        return isPagingEnabled && super.onTouchEvent(event);
    }

    public void setPagingEnabled(boolean pagingEnabled) {
        isPagingEnabled = pagingEnabled;
    }
}