'hideUISearchBarWhenScrolling'-属性不适用于tableView作为属性 [英] 'hideUISearchBarWhenScrolling'-Property not working with tableView as property

问题描述

我尝试了新的Swift4/iOS11可能性，并遇到了 hideSearchBarWhenScrolling 在UIViewController中不能作为属性使用tableView的问题.

I played around with the new Swift4/iOS11 possibilities and stuck with the problem that hideSearchBarWhenScrolling isn't working with a tableView as a property in UIViewController.

在UITableViewController中，它像应该正常工作一样工作.

In UITableViewController it's working like it should work.

我做错了什么?有人提出了同样的问题，对此有解决方案吗?

What am I doing wrong? Somebody issued the same problem an has an solution for this?

class AddController: UIViewController {

    let tableView: UITableView = {
        let tv = UITableView()
        tv.translatesAutoresizingMaskIntoConstraints = false
        return tv
    }()
    let searchController = UISearchController(searchResultsController: nil)

    override func viewDidLoad() {
        navigationItem.title = "Heading"
        navigationItem.searchController = searchController
        navigationController?.navigationBar.prefersLargeTitles = true
    }

    override func viewWillLayoutSubviews() {
        view.addSubview(tableView)

        NSLayoutConstraint.activate([
            tableView.leftAnchor.constraint(equalTo: view.leftAnchor),
            tableView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor),
            tableView.rightAnchor.constraint(equalTo: view.rightAnchor),
            tableView.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor)
        ])
    }
}

谢谢

推荐答案

像这样使用:

navigationItem.hidesSearchBarWhenScrolling

这篇关于'hideUISearchBarWhenScrolling'-属性不适用于tableView作为属性的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！