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我試圖從通訊錄中選擇聯繫人號碼，而當我嘗試爲其更新邏輯時，它未能選擇地址簿，而是當我單擊號碼時，它正在撥打這個號碼。當我嘗試選擇號碼時，代表團不會被呼叫。下面的代碼雖然很長，但我試圖描述一切（省略不相關的代碼），所以你得到了這個問題的想法。聯繫人選取器的代表設置不正確
因此，複雜的事情是，我有一個HomeViewController，這一點我從一個叫HomeHelper（與UITableView的一個UIView）輔助設置中的所有數據。我確實從一個名爲WidgetView的視圖添加了一個UITableViewCell，並且正在設置的數據是從WidgetHelper。 WidgetHelper將加載一個名爲WidgetProductAHelper（以及稱爲WidgetProductAView的視圖）的UITableViewCell。
WidgetProductAView包含一個圖像按鈕，當我點擊按鈕時，它應該顯示聯繫人選擇器。我嘗試將邏輯分離到一個名爲AddressBookHelper的新類，這樣我就可以在任何地方使用它，而不會有任何冗餘。它成功顯示地址簿，但是當我嘗試單擊其中一個時，它將重定向到詳細聯繫人屏幕，而不是調用peoplePickerNavigationController的方法。我已爲此設定了代表團，但仍然無效。
當我試圖將它們寫入一個類時，這些功能就會起作用。什麼可能是錯的？請幫忙弄清楚，我懷疑在使用助手時存在一些不適當的實現，但無法弄清楚。謝謝。
HomeViewController.swift
class HomeViewController: UIViewController {
var dataSource : UITableViewDataSource?
var delegate : UITableViewDelegate?
override func viewDidLoad() {
//
let helper = HomeHelper()
helper.homeViewController = self
dataSource = helper
delegate = helper
tableView.dataSource = dataSource
tableView.delegate = delegate
}
}
HomeHelper.swift
class HomeHelper: UITableViewDataSource, UITableViewDelegate, WidgetViewDelegate {
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
guard let cell = tableView.dequeueReusableCell(withIdentifier: "WidgetView", for: indexPath) as? UITableViewCell else {
return UITableViewCell()
}
if let customView = cell.customView as? WidgetView {
let helper = WidgetHelper()
customView.helperDataSource = helper
customView.helperDelegate = helper
customView.delegate = self
helper.controller = customView
customView.initCell()
return cell
}
}
// MARK: - WidgetViewDelegate
func presentOnHome(_ viewControllerToPresent: UIViewController, animated: Bool, completion: (() -> Swift.Void)? = nil) {
self.homeViewController?.present(viewControllerToPresent, animated: animated, completion: completion)
}
}
WidgetView.swift
protocol WidgetViewDelegate {
func presentOnHome(_ viewControllerToPresent: UIViewController, animated: Bool, completion: (() -> Swift.Void)?)
}
class WidgetView: NSObject {
var delegate: WidgetViewDelegate?
var helperDataSource: WidgetViewHelperDataSource?
var helperDelegate: WidgetViewHelperDelegate?
func initCell() {
//
tableView.dataSource = helperDataSource
tableView.delegate = helperDelegate
}
func presentOnHome(_ viewControllerToPresent: UIViewController, animated: Bool, completion: (() -> Swift.Void)?) {
delegate?.presentOnHome(viewControllerToPresent, animated: animated, completion: completion)
}
}
WidgetHelper.swift
class WidgetHelper: UITableViewDataSource, UITableViewDelegate, WidgetProductAHelperDelegate {
var controller: WidgetView?
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
guard let cell = tableView.dequeueReusableCell(withIdentifier: "WidgetProductAView", for: indexPath) as? UITableViewCell else {
return UITableViewCell()
}
if let customView = cell.customView as? WidgetProductAHelper {
customView.parentHelper = self
customView.delegate = self
customView.initCell()
return cell
}
}
// MARK: - WidgetProductAHelperDelegate
func presentOnHome(_ viewControllerToPresent: UIViewController, animated: Bool, completion: (() -> Swift.Void)? = nil) {
self.homeViewController?.present(viewControllerToPresent, animated: animated, completion: completion)
}
}
WidgetProductAHelper.swift
protocol WidgetProductAHelperDelegate {
func presentOnHome(_ viewControllerToPresent: UIViewController, animated: Bool, completion: (() -> Swift.Void)?)
}
class WidgetProductAHelper: UITableViewDataSource, UITableViewDelegate {
@IBOutlet var contactImageButton: UIButton!
var parentHelper: WidgetHelper?
var delegate: WidgetProductAHelperDelegate?
}
func initCell() {
//
contactImageButton.isUserInteractionEnabled = true;
contactImageButton.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(WidgetProductAHelper.contactImageButtonTapped(_:))))
}
func contactImageButtonTapped(_ sender: UIGestureRecognizer) {
let addressBookHelper = AddressBookHelper()
addressBookHelper.contactImageButton = contactImageButton
addressBookHelper.completion = { (result) in
switch result {
case .presentOnHome(let viewControllerToPresent) :
self.parentHelper?.presentOnHome(viewControllerToPresent, animated: true, completion: nil)
break
}
}
addressBookHelper.addressBookButtonTapped()
}
AddressBookHelper.swift
正如你看到下面的代碼，我已經CNPicker的委託設爲類，但不調用委託的方法。對於displayErrorMessage（）和displayPromptForAddressBookRequestAccess（）等其他內容，它在顯示彈出窗口時效果很好。
enum AddressBookActionResult {
case presentOnHome(viewControllerToPresent: UIViewController)
}
class AddressBookHelper: NSObject, CNContactPickerDelegate {
var completion: ((AddressBookActionResult) ->())?
var contactImageButton: UIButton?
@available(iOS 9.0, *)
var CNPicker: CNContactPickerViewController {
return CNContactPickerViewController()
}
func addressBookButtonTapped() {
switch CNContactStore.authorizationStatus(for: .contacts) {
case .denied, .restricted:
// displayErrorMessage()
break
case .authorized:
openUserAddressBook()
break
case .notDetermined:
// displayPromptForAddressBookRequestAccess()
break
}
}
func openUserAddressBook() {
if #available(iOS 9.0, *) {
CNPicker.delegate = self
completion?(.presentOnHome(viewControllerToPresent: CNPicker))
}
}
// MARK: - CNContactPickerDelegate
@available(iOS 9.0, *)
func contactPicker(_ picker: CNContactPickerViewController, didSelect contact: CNContact) {
// This method doesn't get called
//...
}
}
嗨@Michael Dautermann，非常感謝你，但它仍然不適合我。我已經更新了這個問題供您參考。 –
你現在正在做的事情，''CNPicker'屬性的每個調用返回一個'CNContactPickerViewController（）'，***在每次引用時創建一個新的CNContactPickerViewController。您需要創建一次CNContactPickerViewController，然後將其設置爲一個屬性，並且它會一直存在。 –
oic，它現在正常工作，謝謝@Michael Dautermann :) –