检测哪个viewController呈现了SideMenu，并为其呈现实现了适当的功能

Question

我将the following pod用于我的SideMenu功能。现在，如果我从XYZ viewController中打开它，然后选择再次打开XYZ viewController的行，则页面将被推送，但是，我希望关闭SideMenu，而不是推送已经显示的viewController。

这是用户界面：

这是我的didSelectRow代码，很清楚：

    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，获得presentingViewController属性，但是没有成功。谁能帮助我以适当的方式处理它？<​​/ p>

Answer 1

尝试将func main() { p1 := Player{Id: 1, Username: "peter", Avatar: "avatar.png", Email: "PRIVATE"} p2 := Player{Id: 1, Username: "peter", Avatar: "avatar.png", Email: "PRIVATE"} t := Table{Id: 1, PlayerTop: p1, PlayerBottom: p2} admin, _ := json.Marshal(t) public, _ := json.Marshal(t.PublicInfo()) fmt.Println(fmt.Sprintf("For admins: %s", string(admin))) fmt.Println(fmt.Sprintf("For public: %s", string(public))) } /* Output: For admins: {"id":1,"playerTop":{"id":1,"username":"peter","email":"PRIVATE","birthdate":"0001-01-01T00:00:00Z","avatar":"avatar.png"},"playerBottom":{"id":1,"username":"peter","email":"PRIVATE","birthdate":"0001-01-01T00:00:00Z","avatar":"avatar.png"}} For public: {"id":1,"playerBottom":{"avatar":"avatar.png","id":1,"username":"peter"},"playerTop":{"avatar":"avatar.png","id":1,"username":"peter"}} */ 添加到sideMenu根视图控制器（将其称为SideMenuVC）

然后在每个视图控制器表单上，您将在其中显示add的侧面菜单

var previousVC: UIViewController?

然后在XYZViewController案例中写

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