swift - 当搜索 Controller 处于事件状态时，NavigationController 无法在详细 View Controller 中显示后退按钮

Question

我有一个带有搜索 Controller 的UITableView，当搜索 Controller 处于事件状态并且选择单元格时，它将数据传递到详细 View Controller 。

所有数据都已传递，但左上角没有后退导航按钮，如果搜索 Controller 处于非事件状态并且选择了单元格，则会显示后退导航按钮，并将其带回搜索并工作非常适合该场景。

这是didSelectRowAt的代码:

override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    tableView.deselectRow(at: indexPath, animated: true)
    let Storyboard = UIStoryboard(name: "Main", bundle: nil)
    let DvC = Storyboard.instantiateViewController(withIdentifier: "PostTableDetailed") as! PostTableDetailed

    var user = usersArray[indexPath.row]

    if(self.searchController.isActive) {
        user = filteredUsers[indexPath.row]

        let title = user?.value(forKey: "title")
        print(title)
        DvC.getName = title as! String

        let image = user?.value(forKey: "image")
        print(image)
        DvC.getImg = image as! String

        let desc = user?.value(forKey: "description")
        print(desc)
        DvC.getDesc = desc as! String

        var contact = user?.value(forKey: "contact")
        print(contact)
        if contact == nil {
            contact = ""
        } else {
            DvC.getContact = contact as! String
        }

        let address = user?.value(forKey: "address")
        print(address)
        DvC.getAddress = address as! String

        self.navigationController?.pushViewController(DvC, animated: true)
    }
    else {
        user = usersArray[indexPath.row]
        print(user!)

        let title = user?.value(forKey: "title")
        print(title)
        DvC.getName = title as! String

        let image = user?.value(forKey: "image")
        print(image)
        DvC.getImg = image as! String

        let desc = user?.value(forKey: "description")
        print(desc)
        DvC.getDesc = desc as! String

        var contact = user?.value(forKey: "contact")
        print(contact)
        if contact == nil {
            contact = ""
        } else {
            DvC.getContact = contact as! String
        }

        let address = user?.value(forKey: "address")
        print(address)
        DvC.getAddress = address as! String

        self.navigationController?.pushViewController(DvC, animated: true)

    }
}

Answer 1

请检查您是否添加了两个导航 Controller ，或者您可能隐藏了后退按钮。