如何将具有动态高度的xib子视图添加到UIView

func loadDynamicSubview() {
    let bundle = Bundle(for: type(of: self))
    let nib = UINib(nibName: "DynamicSubview", bundle: bundle)
    let view = nib.instantiate(withOwner: self, options: nil).first as! UIView
    view.translatesAutoresizingMaskIntoConstraints = false
    addSubview(view)
    
    // 添加约束，确保子视图填充整个父视图
    NSLayoutConstraint.activate([
        view.topAnchor.constraint(equalTo: topAnchor),
        view.leadingAnchor.constraint(equalTo: leadingAnchor),
        view.trailingAnchor.constraint(equalTo: trailingAnchor),
        view.bottomAnchor.constraint(equalTo: bottomAnchor)
    ])
}