mbrucedogs/vds_ios_sample
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added keyboard handling

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Signed-off-by: Matt Bruce <matt.bruce@verizon.com>
This commit is contained in:
Matt Bruce 2023-07-20 19:35:49 -05:00
parent abe93d2298
commit 69482c2c7a
1 changed files with 65 additions and 26 deletions
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91
VDSSample/ViewControllers/BaseViewController.swift
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@ -22,7 +22,7 @@ public class FormSection: UIStackView {
}
}
private var titleLabel = Label().with { $0.isHidden = true; $0.textStyle = .boldBodyLarge }
private var titleLabel = Label().with { $0.isHidden = true; $0.textStyle = .boldBodyLarge; }
public override init(frame: CGRect) {
super.init(frame: frame)
@ -164,10 +164,8 @@ public class BaseViewController<Component: UIView>: UIViewController, Initable {
super.viewDidLoad()
view.backgroundColor = .white
let top = UIView.makeWrapper(for: contentTopView, edgeSpacing: 16, isTrailing: false)
// Add the top and bottom views to the stack view
stackView.addArrangedSubview(top)
stackView.addArrangedSubview(contentTopView.makeWrapper(edgeSpacing: 16))
stackView.addArrangedSubview(bottomScrollView)
// Add the stack view to the view controller's view
@ -178,7 +176,7 @@ public class BaseViewController<Component: UIView>: UIViewController, Initable {
stackView.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor),
stackView.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor),
stackView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor),
stackView.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor)
stackView.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor, constant: -25)
])
bottomScrollView.addSubview(contentBottomView)
@ -191,7 +189,7 @@ public class BaseViewController<Component: UIView>: UIViewController, Initable {
contentBottomView.bottomAnchor.constraint(equalTo: bottomScrollView.bottomAnchor),
contentBottomView.widthAnchor.constraint(equalTo: bottomScrollView.widthAnchor)
])
contentBottomView.addSubview(formStackView)
formStackView.pinToSuperView(.init(top: 0, left: 16, bottom: 0, right: edgeSpacing))
@ -202,6 +200,52 @@ public class BaseViewController<Component: UIView>: UIViewController, Initable {
picker.isHidden = true
setupForm()
NotificationCenter.default
.publisher(for: UIResponder.keyboardWillShowNotification)
.sink { [weak self] notification in
self?.keyboardWillShow(notification: notification)
}.store(in: &subscribers)
NotificationCenter.default
.publisher(for: UIResponder.keyboardWillHideNotification)
.sink { [weak self] notification in
self?.keyboardWillHide(notification: notification)
}.store(in: &subscribers)
NotificationCenter.default
.publisher(for: UITextField.textDidBeginEditingNotification)
.sink { [weak self] notification in
guard let self, let textField = notification.object as? UITextField else { return }
self.activeTextField = textField
}.store(in: &subscribers)
NotificationCenter.default
.publisher(for: UITextField.textDidEndEditingNotification)
.sink { [weak self] notification in
self?.activeTextField?.resignFirstResponder()
self?.activeTextField = nil
}.store(in: &subscribers)
}
func isViewHiddenByKeyboard(view: UIView, keyboardFrame: CGRect) -> Bool {
let viewFrameInWindow = view.convert(view.bounds, to: nil)
let inetersectionFrame = viewFrameInWindow.intersection(keyboardFrame)
return inetersectionFrame.height > 0
}
func keyboardWillShow(notification: UIKit.Notification) {
if let keyboardSize = (notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue {
if let activeTextField, self.view.frame.origin.y == 0, isViewHiddenByKeyboard(view: activeTextField, keyboardFrame: keyboardSize) {
self.view.frame.origin.y -= keyboardSize.height
}
}
}
func keyboardWillHide(notification: UIKit.Notification) {
if self.view.frame.origin.y != 0 {
self.view.frame.origin.y = 0
}
}
public func setupForm() {
@ -236,31 +280,25 @@ public class BaseViewController<Component: UIView>: UIViewController, Initable {
return formStackView.addFormRow(label: label, view: view)
}
var activeTextField: UITextField?
open func setup() {
if let textFields = allTextFields() {
for textField in textFields {
if textField.isNumeric {
let keypadToolbar: UIToolbar = UIToolbar()
// add a done button to the numberpad
keypadToolbar.items=[
UIBarButtonItem(barButtonSystemItem: UIBarButtonItem.SystemItem.flexibleSpace, target: self, action: nil),
UIBarButtonItem(title: "Done", style: UIBarButtonItem.Style.done, target: textField, action: #selector(UITextField.resignFirstResponder))
]
keypadToolbar.sizeToFit()
// add a toolbar with a done button above the number pad
textField.inputAccessoryView = keypadToolbar
textField.keyboardType = .numberPad
}
let keypadToolbar: UIToolbar = UIToolbar()
// add a done button to the numberpad
keypadToolbar.items=[
UIBarButtonItem(barButtonSystemItem: UIBarButtonItem.SystemItem.flexibleSpace, target: self, action: nil),
UIBarButtonItem(title: "Done", style: UIBarButtonItem.Style.done, target: textField, action: #selector(UITextField.resignFirstResponder))
]
keypadToolbar.sizeToFit()
// add a toolbar with a done button above the number pad
textField.inputAccessoryView = keypadToolbar
textField.keyboardType = textField.isNumeric ? .numberPad : .alphabet
textField.returnKeyType = .done
textField
.publisher(for: .editingDidEndOnExit)
.sink { textField in
textField.resignFirstResponder()
}
.store(in: &subscribers)
}
}
}
@ -270,4 +308,5 @@ public class BaseViewController<Component: UIView>: UIViewController, Initable {
}
open func allTextFields() -> [TextField]? { nil }
}