我有一个视图控制器(SignUpController
),它在顶部有1个图像视图,在底部有2个按钮,还有1个视图为container view
。容器视图(InfoRegisterController
)包含带有几个文本字段的scrollview
。容器视图不包含任何按钮。因此,现在我需要在父视图控制器中访问“容器”视图的文本字段(或者可以说:我需要从容器视图访问父视图控制器的所有数据),以便可以通过单击“注册”按钮来注册用户。 SignUpController
中的底部。我也无法通过代表和NSUserDefaults
解决此问题。因此,请帮助我迅速解决此问题4?
这是父视图控制器:
import UIKit
import Material
class SignUpController: UIViewController {
@IBOutlet weak var backgroundView: UIView!
@IBOutlet weak var register: UIButton!
override func viewDidLoad() {
super.viewDidLoad()
backgroundView.layer.borderWidth = 1
backgroundView.layer.borderColor = UIColor.blue.cgColor
register.layer.cornerRadius = 5
// Do any additional setup after loading the view.
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated) // No need for semicolon
let tv: InfoRegisterController = self.childViewControllers[0] as!InfoRegisterController
print("Hello")
//tv.viewWillAppear(true)
}
必须将所有数据访问此位置,以便我可以将其发布到服务器。
@IBAction func Register(_ sender: Any) {
}
} // class end
容器视图:
import UIKit
import Material
class InfoRegisterController: UIViewController, UITextFieldDelegate, UITableViewDelegate,UITableViewDataSource,UIImagePickerControllerDelegate,UINavigationControllerDelegate {
@IBOutlet weak var fullName: TextField!
@IBOutlet weak var Email: ErrorTextField!
@IBOutlet weak var Password: TextField!
@IBOutlet weak var verifyPassword: TextField!
@IBOutlet weak var address: TextField!
@IBOutlet weak var permanentAddress: TextField!
@IBOutlet weak var currentAddress: TextField!
@IBOutlet weak var DOB: TextField!
@IBOutlet weak var occupation: TextField!
@IBOutlet weak var selectGender: TextField!
@IBOutlet weak var identificationType: TextField!
@IBOutlet weak var identificationID: TextField!
@IBOutlet weak var issuedDate: TextField!
@IBOutlet weak var issuedDistrict: TextField!
@IBOutlet weak var licenseNumber: TextField!
@IBOutlet weak var fathersName: TextField!
@IBOutlet weak var grandfathersName: TextField!
@IBOutlet weak var mobileNumber: TextField!
override func viewDidLoad() {
super.viewDidLoad()
self.fullName.delegate = self
self.Email.delegate = self
self.Password.delegate = self
self.verifyPassword.delegate = self
self.address.delegate = self
self.permanentAddress.delegate = self
self.currentAddress.delegate = self
self.DOB.delegate = self
self.occupation.delegate = self
self.identificationID.delegate = self
self.issuedDate.delegate = self
self.issuedDistrict.delegate = self
self.licenseNumber.delegate = self
self.fathersName.delegate = self
self.grandfathersName.delegate = self
self.mobileNumber.delegate = self
}
}
这里,我需要访问SignUpController的所有字段fullName,Email,Password,verifyPassword,地址,permanentAddress,currentAddress,DOB,occupation和所有其他字段,以便我可以注册新用户。
要从父级访问容器视图,您必须将引用从容器视图传递给父级,然后在父级视图控制器中使用它,有很多方法可以做到这一点,这是其中一种。
在作为容器视图控制器的viewDidAppear
的InfoRegisterController
中添加以下代码,此方法会将InfoRegisterController
的引用获取到要使用的父级中。
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
let signUpControllerParent = self.parent as! SignUpController
signUpControllerParent.saveContrainerViewRefference(vc: self)
}
现在SignUpController
中添加本地变量,以保存即将到来的引用,以供以后从文本字段中获取数据。
var infoRegisterRefferenceVC : InfoRegisterController?
[也在您的父母SignUpController
中也添加此方法
func saveContrainerViewRefference(vc:InfoRegisterController){
self.infoRegisterRefferenceVC = vc
}
例如,现在您可以从父级访问容器视图中的所有文本字段和方法:
var fullNameTextField = self.infoRegisterRefferenceVC.fullName.text
应该是:)
有几种方法可以完成此操作。您可以在父视图控制器中使用“代理”和“协议”或prepareForSegue
方法。
var somePropertyYouWantToAccess: NSString?
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "yourChildViewSegueIdentifier" {
let childVc = segue.destinationViewController as ContainerViewController
self.somePropertyYouWantToAccess = childVc.firstName
}
}