如何在单击按钮时迅速消除弹出窗口？

Question

我创建了其中有两个按钮的弹出窗口。 单击弹出框内的按钮时，我想关闭弹出框。

这是我的代码：FirstViewController：

 @IBAction func bar_button(_ sender: UIBarButtonItem) {

    let vc = storyboard?.instantiateViewController(withIdentifier: "SecondViewController") as!
    SecondViewController
    vc.preferredContentSize = CGSize(width: 200,height:80)
    let navController = UINavigationController(rootViewController: vc)
    navController.modalPresentationStyle = UIModalPresentationStyle.popover

    let popover = navController.popoverPresentationController
    popover?.delegate = self
    popover?.barButtonItem = sender as! UIBarButtonItem
    self.present(navController, animated: true, completion: nil)

}

SecondViewController：

@IBAction func second_button(_ sender: UIButton) {
    //want to dismiss popover when button clicked
      }
@IBAction func second_button(_ sender: UIButton) {
   //want to dismiss popover when button clicked
      }

Answer 1

呼叫

dismiss(animated: true, completion: nil)

在这些方法中，这将消除显示的弹出框。