ios - 检测哪个 viewController 呈现了 SideMenu 并为其呈现实现适当的功能

Question

我正在使用the following pod用于我的 SideMenu 功能。现在，如果我从 XYZ viewController 打开它并选择再次打开 XYZ viewController 的行，则页面将被推送，但相反，我希望关闭 SideMenu，而不是推送已呈现的 viewController。

这是用户界面:

这是我的 didSelectRow 代码，非常清楚:

    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    switch indexPath.row {
    case 0:
        let playerVC = NavigationHelper.shared.getStoryBoard().instantiateViewController(withIdentifier: "mainPage") as? MainViewController
        navigationController?.pushViewController(playerVC!, animated: true)
    case 1:
        let historyVC = NavigationHelper.shared.getStoryBoard().instantiateViewController(withIdentifier: "historyPage") as? BroadcastsHistoryViewController
        navigationController?.pushViewController(historyVC!, animated: true)
    case 2:
        let sendMessageVC = NavigationHelper.shared.getStoryBoard().instantiateViewController(withIdentifier: "messagingPage") as? MessaginViewController
        navigationController?.pushViewController(sendMessageVC!, animated: true)
    case 3:
        let settingsVC = NavigationHelper.shared.getStoryBoard().instantiateViewController(withIdentifier: "settingPage") as? SettingsViewController
        navigationController?.pushViewController(settingsVC!, animated: true)
    case 4:
        let aboutVC = NavigationHelper.shared.getStoryBoard().instantiateViewController(withIdentifier: "aboutPage") as? AboutAppViewController
        navigationController?.pushViewController(aboutVC!, animated: true)
    default: break
    }
}

到目前为止，我已经尝试检测 topMost viewController，获取 presentingViewController 属性，但没有成功。谁能帮我以正确的方式处理它？<​​/p>

Answer 1

尝试将 var previousVC: UIViewController? 添加到 sideMenu Root View Controller (我们称之为 SideMenuVC)

然后在每个 View Controller 表单上，您将在其中显示添加的侧面菜单

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if let nextVC = segue.destination as? SideMenuVC {
        nextVC.previousVC = self
    }
}

然后在 XYZViewController 案例上写入

if let vc = previousVC as? XYZViewController{
    //dismiss sidemenu
} else {
   //instantiate and push ViewController 
}