ios - Swift UISearchController tableview 搜索结果滚动不会在键盘上方移动到最后一行

Question

在我的场景中，我将 Tableview 与 searchController 结合使用。单击搜索按钮后将显示 searchcontroller。在这里，一旦搜索 Controller 通过搜索结果列表时间，如果我滚动我的表格 View ，它不会滚动到底部的最后一个“行”。我需要在键盘上方显示底行。我尝试了下面的代码但不起作用。

单击按钮以显示搜索 Controller

@IBAction func Click_search(_ sender: Any) {
        searchController = UISearchController(searchResultsController: nil)
        searchController.hidesNavigationBarDuringPresentation = false
        searchController.searchBar.keyboardType = UIKeyboardType.asciiCapable
        searchController.searchBar.placeholder = "Search"
         searchController.searchBar.backgroundColor =  UIColor.red
        searchController.searchBar.tintColor =  UIColor.white
        let cancelButtonAttributes = [NSAttributedString.Key.foregroundColor: UIColor.white]
        UIBarButtonItem.appearance().setTitleTextAttributes(cancelButtonAttributes , for: .normal)
        searchController.dimsBackgroundDuringPresentation = false
        self.searchController.searchBar.delegate = self
        searchController.searchResultsUpdater = self
        present(searchController, animated: true, completion: nil)
    }

ViewDidload 内部

  NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow(notification:)), name: UIResponder.keyboardWillShowNotification, object: nil)
        NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillHide(notification:)), name: UIResponder.keyboardWillHideNotification, object: nil)

键盘隐藏和显示以调整 Tablview 高度

@objc private func keyboardWillShow(notification: NSNotification) {
        if let keyboardSize = (notification.userInfo?[UIResponder.keyboardFrameBeginUserInfoKey] as? NSValue)?.cgRectValue {
            tableView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: keyboardSize.height + 25, right: 0)
        }
    }

    @objc private func keyboardWillHide(notification: NSNotification) {
        tableView.contentInset = .zero
    }

Answer 1

试试这个代码。您正在滚动 TableView。请尝试滚动您的 super View 。它会起作用的。尝试让我知道。

在 Click_search 操作中添加以下代码。

NotificationCenter.default.addObserver(self, selector: #selector(self.keyboard(notification:)), name: UIResponder.keyboardWillShowNotification, object: nil)
        NotificationCenter.default.addObserver(self, selector: #selector(self.keyboard(notification:)), name: UIResponder.keyboardWillHideNotification, object: nil)
        NotificationCenter.default.addObserver(self, selector: #selector(self.keyboard(notification:)), name:UIResponder.keyboardWillChangeFrameNotification, object: nil)

调用此函数来检查并将 tableView 向上滚动。//标记:- 键盘检查

 @objc func keyboard(notification:Notification) {
        if notification.name == UIResponder.keyboardWillShowNotification ||  notification.name == UIResponder.keyboardWillChangeFrameNotification {
           self.view.frame.origin.y = -15
        }else{
            self.view.frame.origin.y = 0
        }
    }