当ViewPager2的用户输入被禁用时，如何添加左右边缘效果

public class EdgeEffectDecoration extends RecyclerView.ItemDecoration {
    private Drawable leftEdgeEffect;
    private Drawable rightEdgeEffect;

    public EdgeEffectDecoration(Context context) {
        // 初始化左右边缘效果的Drawable，可以使用自定义的图片资源或者系统提供的边缘效果样式
        leftEdgeEffect = ContextCompat.getDrawable(context, R.drawable.left_edge_effect);
        rightEdgeEffect = ContextCompat.getDrawable(context, R.drawable.right_edge_effect);
    }

    @Override
    public void onDrawOver(@NonNull Canvas c, @NonNull RecyclerView parent, @NonNull RecyclerView.State state) {
        super.onDrawOver(c, parent, state);

        int left = parent.getPaddingLeft();
        int right = parent.getWidth() - parent.getPaddingRight();
        int top = parent.getPaddingTop();
        int bottom = parent.getHeight() - parent.getPaddingBottom();

        // 绘制左边缘效果
        leftEdgeEffect.setBounds(left, top, left + leftEdgeEffect.getIntrinsicWidth(), bottom);
        leftEdgeEffect.draw(c);

        // 绘制右边缘效果
        rightEdgeEffect.setBounds(right - rightEdgeEffect.getIntrinsicWidth(), top, right, bottom);
        rightEdgeEffect.draw(c);
    }
}

ViewPager2 viewPager = findViewById(R.id.viewPager);
viewPager.setUserInputEnabled(false); // 禁用用户输入

EdgeEffectDecoration edgeEffectDecoration = new EdgeEffectDecoration(this);
viewPager.addItemDecoration(edgeEffectDecoration); // 添加自定义的ItemDecoration