ios - 在模拟器中单击后文本字段不起作用

Question

我正在使用 Google Maps SDK，目前我有一张 map ，可以将用户从任何地方引导到特定位置。我希望用户能够输入他们想去的地方，而不是总是被路由到同一个位置。我在 GUI 中添加了一个文本字段，每当我在模拟器中运行该应用程序并单击该文本字段时，都不会出现键盘，就好像我没有点击它一样。

这是我设置项目的方式:

import UIKit
import GoogleMaps
import GooglePlaces
import CoreData

class ViewController: UIViewController, CLLocationManagerDelegate, UITextFieldDelegate
{

let locationManager = CLLocationManager()
    var currLocation: CLLocationCoordinate2D!
    var keyy = "myKeyIsHere"
    var didFindMyLocation = false
    var count: Int = 0
    var button = UIButton()
    var latitude = UITextField()
    var longitude = UITextField()
    var path = GMSMutablePath()

super.viewDidLoad()
        let blah = GMSCameraPosition.camera(withLatitude: 39.8282, longitude: -98.5795, zoom: 25.0)
        mapView.camera = blah
        locationManager.delegate = self
        locationManager.requestWhenInUseAuthorization()
        mapView.addObserver(self, forKeyPath: "myLocation", options: NSKeyValueObservingOptions.new, context: nil)

        currLocation = mapView.myLocation?.coordinate

        button = UIButton(type: .system)
        button.frame = CGRect(x: 135, y: 40, width: 100, height: 40)
        button.backgroundColor = UIColor.clear
        button.layer.cornerRadius = 5
        button.layer.borderWidth = 1
        button.layer.borderColor = UIColor.blue.cgColor
        button.setTitle("Route", for: UIControlState.normal)
        button.addTarget(self, action: #selector(ViewController.buttonPressed), for: UIControlEvents.touchUpInside)

        latitude = UITextField()
        latitude.frame = CGRect(x: 5, y: 90, width: 175, height: 35)
        latitude.backgroundColor = UIColor.white
        latitude.layer.cornerRadius = 5
        latitude.layer.borderWidth = 1
        latitude.layer.borderColor = UIColor.black.cgColor
        latitude.isUserInteractionEnabled = true
        latitude.text = " Enter Latitude"
        latitude.keyboardType = UIKeyboardType.numbersAndPunctuation
        self.latitude.delegate = self

        longitude = UITextField()
        longitude.frame = CGRect(x: 195, y: 90, width: 175, height: 35)
        longitude.backgroundColor = UIColor.white
        longitude.layer.cornerRadius = 5
        longitude.layer.borderWidth = 1
        longitude.layer.borderColor = UIColor.black.cgColor
        longitude.isUserInteractionEnabled = true
        longitude.text = " Enter Longitude"
        longitude.keyboardType = UIKeyboardType.numbersAndPunctuation
        self.longitude.delegate = self

        self.view.addSubview(latitude)
        self.view.addSubview(button)
        self.view.addSubview(longitude)
    }

还有更多，但我认为这与问题相关。我实际上在这里添加了两个文本字段，但都不起作用!请帮忙!

Answer 1

您需要从 Storyboard或编程方式启用您的文本字段的控制状态，如下所示。

 latitude.isEnabled = true
 longitude.isEnabled = true

更新:

注意:将所有代码移动到 viewDidLoad? 中，如下所示

 override func viewDidLoad() {
 super.viewDidLoad()
 } 

尝试使用以下方法之一启用 textField。当 textField 开始编辑时...

  func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {
  print("textFieldShouldBeginEditing:")
  return true
  }

  func textFieldDidBeginEditing(_ textField: UITextField){
  print("textFieldDidBeginEditing:")
  }