Question

正如您在下面的代码中看到的那样，一旦选择了没有运气的行，我就尝试了一些尝试将UIViewTableController放回到父ViewController中

我的UITableViewController中的

didselectRowAt代码：

override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {

    //self.storyboard?.instantiateInitialViewController()
    //self.navigationController?.popViewController(animated: true)
    print("before dismissing")
    self.dismiss(animated: true, completion: {
        print("dismissing")
        self.delegate?.showWeatherInfo()
    })
    print("after dismissing")


    let geoCoder = CLGeocoder()
    geoCoder.geocodeAddressString(self.searchResults[indexPath.row], completionHandler: {(placemarks: [CLPlacemark]?, error: Error?) -> Void in
        if let placemark = placemarks?[0] {


            print(placemark)


        }
    })

    /*
    self.dismiss(animated: true, completion: {
        self.delegate?.showWeatherInfo()
    })
     */
}

相同类别的协议：

protocol ShowWeather{
    func showWeatherInfo()
}

我在ViewController中称呼它的地方

@IBAction func searchButton(_ sender: UIButton) {
    searchButtonUIChanges()
    textFieldBg_view.backgroundColor = UIColor.clear

    //create searchresult object and add it as a subview
    searchResultController = SearchResultsController()
    searchResultController.delegate = self
    addChild(searchResultController)
    searchResultController.view.backgroundColor = UIColor.clear
    searchResultController.view.frame = CGRect(x: 0, y: 64+textFieldBg_view.frame.size.height - 25, width: self.view.frame.size.width, height: self.view.frame.size.height - 50)
    view.addSubview(searchResultController.view)
    searchResultController.didMove(toParent: self)



    let screenHeight = -(UIScreen.main.bounds.height/2 + textFieldBg_view.frame.height/2)
    textFieldBg_view.transform = CGAffineTransform(translationX: 0, y: screenHeight)

    UIView.animate(withDuration: animateDuration, delay: delay, usingSpringWithDamping: springWithDamping, initialSpringVelocity: 0, options: .allowUserInteraction, animations: {
        self.textFieldBg_view.transform = .identity
    }, completion: nil)

    searchTextField.becomeFirstResponder()
}

很显然，在解散打印作品之前和之后，而在完成版面内部解散作品并没有。我目前尚未将任何信息传递回UIViewController的原因是，嗯，我什至还没有到达那里。

是的，在我的ViewController类头中，我具有TableViewController类协议，但这无关紧要，因为UITableViewController甚至还没有正确解除。

Answer 1

关闭vc后，它会被取消初始化，因此您需要在关闭之前传递数据

print("before dismissing \(delegate)")  // print delegate to see if nil
self.delegate?.showWeatherInfo()
self.dismiss(animated: true, completion: {
    print("dismissing")
})

如果将vc推入导航dismiss内将不起作用，则需要使用

self.navigationController?.popViewController(animated: true)

UITableViewController didSelectRowAt没有正确消除

1 个答案: