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我沒有任何故事板，所有內容都是編程式的。我有三個TextField，其中一個隱藏（isHidden = true），在登錄按鈕後面，登錄按鈕下面是一個註冊按鈕。如果點擊註冊按鈕，登錄按鈕在註冊按鈕下滑動，隱藏的textField顯示使用layoutSubViews（）並將設置爲隱藏爲false。點擊文本域後重置位置的動畫視圖
我的問題是，當點擊任何文本字段時，loginButton會移回原始位置。我曾嘗試將textfield委託移動到viewcontroller，在willLayoutSubviews和didLayoutSubviews中調用setup（），但仍然發生同樣的情況。
的ViewController：
class WelcomeScreenViewController: UIViewController {
private var currentUser: SplitterUser? {
didSet {
let nextViewController = MyBillsViewController()
nextViewController.currentUser = self.currentUser
present(nextViewController, animated: true)
}
}
// swiftlint:disable line_length
private let titleLogoLabel = TitleLabelLogo(frame: CGRect.zero, accessID: AccesID.titleLogoLabel)
private let emailTextField = SplitterTextField(frame: CGRect.zero, accessID: AccesID.emailTextField)
private let passwordTextField = SplitterTextField(frame: CGRect.zero, accessID: AccesID.passwordTextField)
private let confirmPasswordTextField = SplitterTextField(frame: CGRect.zero, accessID: AccesID.confirmPasswordTextField)
private let loginButton = SplitterButton(frame: CGRect.zero, accessID: AccesID.loginButton)
private let registerButton = SplitterButton(frame: CGRect.zero, accessID: AccesID.registerButton)
// swiftlint:enable line_length
override func viewDidLoad() {
super.viewDidLoad()
setup()
}
private func setup() {
view.backgroundColor = Color.mainBackground
view.addSubview(titleLogoLabel)
view.addSubview(emailTextField)
view.addSubview(passwordTextField)
view.addSubview(confirmPasswordTextField)
view.addSubview(loginButton)
view.addSubview(registerButton)
applyCommonLayoutFeaturesToAllViews()
placeTitleLogoLabel()
placeEmailTextField()
placePasswordTextField()
placePasswordConfirmationTextField()
placeLoginButton()
placeRegisterButton()
setupKeyboard()
}
private func applyCommonLayoutFeaturesToAllViews() {
view.subviews.forEach { subview in
subview.pinToSuperview(edges: [.left, .right])
subview.translatesAutoresizingMaskIntoConstraints = false
}
}
private func placeTitleLogoLabel() {
let titleLogoLabelY = view.frame.height/4.5
titleLogoLabel.pinTop(to: view, constant: titleLogoLabelY)
titleLogoLabel.addHeightConstraint(with: Layout.titleLogoTextHeight)
}
private func placeEmailTextField() {
emailTextField.centerYToSuperview()
emailTextField.addHeightConstraint(with: Layout.textFieldHeight)
}
private func placePasswordTextField() {
passwordTextField.pinTop(to: emailTextField,
constant: Layout.textFieldHeight + Layout.spacer,
priority: .required,
relatedBy: .equal)
passwordTextField.addHeightConstraint(with: Layout.textFieldHeight)
}
private func placePasswordConfirmationTextField() {
confirmPasswordTextField.pinTop(to: passwordTextField,
constant: Layout.textFieldHeight + Layout.spacer,
priority: .required,
relatedBy: .equal)
confirmPasswordTextField.addHeightConstraint(with: Layout.textFieldHeight)
confirmPasswordTextField.isHidden = true
}
private func placeLoginButton() {
loginButton.pinTop(to: passwordTextField,
constant: Layout.textFieldHeight + Layout.spacer,
priority: .required,
relatedBy: .equal)
loginButton.addHeightConstraint(with: Layout.buttonHeight)
loginButton.addTarget(self, action: #selector(loginButtonTapped), for: .touchUpInside)
}
private func placeRegisterButton() {
registerButton.pinTop(to: loginButton,
constant: Layout.buttonHeight + Layout.spacer,
priority: .required,
relatedBy: .equal)
registerButton.addHeightConstraint(with: Layout.buttonHeight)
registerButton.addTarget(self, action: #selector(registerButtonTapped), for: .touchUpInside)
}
@objc private func registerButtonTapped() {
if confirmPasswordTextField.isHidden {
animateLoginButton()
} else {
registerNewUser()
}
}
@objc private func loginButtonTapped() {
if !confirmPasswordTextField.isHidden {
animateLoginButton()
self.view.layoutSubviews()
} else {
//segue to next vc
}
}
private func animateLoginButton() {
if confirmPasswordTextField.isHidden {
moveLoginButtonDown()
} else {
moveLoginButtonUp()
}
}
private func moveLoginButtonDown() {
//Move loginButton down revealing confirmationPasswordTextView behind it
UIView.animate(withDuration: 0.3, animations: {
self.loginButton.frame.origin.y += Layout.loginButtonYMovement
self.confirmPasswordTextField.isHidden = false
})
}
private func moveLoginButtonUp() {
//Move the loginButton up, when it has finished moving hide the confirmationPasswordTextView
UIView.animate(withDuration: 0.3, animations: {
self.loginButton.frame.origin.y -= Layout.loginButtonYMovement
}, completion: { _ in
self.confirmPasswordTextField.isHidden = true
})
}
}
extension UIViewController {
func setupKeyboard() {
NotificationCenter.default.addObserver(self,
selector: #selector(keyboardWillShow(sender:)),
name: NSNotification.Name.UIKeyboardWillShow,
object: nil)
NotificationCenter.default.addObserver(self,
selector: #selector(keyboardWillHide(sender:)),
name: NSNotification.Name.UIKeyboardWillHide,
object: nil)
}
@objc private func keyboardWillShow(sender: NSNotification) {
self.view.frame.origin.y = Layout.welcomeScreenKeyboardMovement
}
@objc private func keyboardWillHide(sender: NSNotification) {
self.view.frame.origin.y = 0
}
}
文本字段：
class SplitterTextField: UITextField, UITextFieldDelegate {
var accessID: String!
required init(frame: CGRect, accessID: String) {
super.init(frame: frame)
self.accessID = accessID
setup()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
}
private func setup() {
delegate = self
backgroundColor = Color.textFieldBackground
accessibilityIdentifier = accessID
textAlignment = .center
returnKeyType = .done
placeholder = NSLocalizedString("\(accessID!)PlaceHolder", comment: "")
}
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
resignFirstResponder()
return true
}
}
我失去了什麼嘗試。任何想法都會很棒。謝謝
當按下登錄按鈕的位置正在重新設置然後動畫喲umean？ –
沒有按下登錄按鈕和註冊按鈕，因爲他們應該做，但當我點擊一個文本字段後，登錄按鈕已移動它重置回到它的起點 – Wazza
是否有代碼textFieldShouldReturn以外代碼中的文本字段的任何edlegate函數？ –