1
我面臨兩個主要問題第一個是： 1.我正在嘗試檢測來電，撥出電話，撥號通話爲此我使用此代碼：CXCallObserver無法正常工作，當運行應用程序超過一個（當包含聯繫人圖像數據時）應用程序崩潰
import UIKit
import CoreTelephony
import CallKit
class ViewController: UIViewController,CXCallObserverDelegate {
let callObserver = CXCallObserver()
var seconds = 0
var timer = Timer()
override func viewDidLoad() {
super.viewDidLoad()
callObserver.setDelegate(self, queue: nil)
}
override func viewWillAppear(_ animated: Bool) {
print("viewWillAppear \(seconds)")
}
fileprivate func runTimer(){
timer = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(self.updateTimer), userInfo: nil, repeats: true)
}
func updateTimer() {
seconds += 1
print("Seconds \(seconds)")
}
@IBAction func callButton(_ sender: UIButton) {
if let url = URL(string: "tel://\(12345879)"){
UIApplication.shared.open(url, options: [:], completionHandler: nil)
}
}
func callObserver(_ callObserver: CXCallObserver, callChanged call: CXCall) {
if call.hasEnded == true {
print("Disconnected")
seconds = 0
self.timer.invalidate()
}
if call.isOutgoing == true && call.hasConnected == false {
print("Dialing call")
self.runTimer()
}
if call.isOutgoing == false && call.hasConnected == false && call.hasEnded == false {
print("Incoming")
}
if call.hasConnected == true && call.hasEnded == false {
print("Connected")
}
}
}
它工作正常，當我撥打一個號碼顯示「撥號」，但是當我切斷電話，然後顯示「斷開連接」，然後再「撥號」的狀態。
- 另一個問題是，當我從設備獲取所有聯繫人信息時，它工作正常，當我沒有獲取imageData但是當我獲取聯繫人圖像時，它第一次正常工作。然後，如果我再運行一次應用程序變得緩慢。然後下一個崩潰顯示零，同時展開一個值。
我在AppDelegate中編寫了我的聯繫人數據獲取功能。它在應用程序啓動時調用。這是代碼： 一個號碼時我斷開通話，然後如果不幸它去「撥號」選項，我再次檢查了「秒」變量的值，如果：
func fetchContactList(){
let loginInformation = LoginInformation()
var contactModelData: [ContactsModel] = []
var profileImage : UIImage?
let store = CNContactStore()
store.requestAccess(for: .contacts, completionHandler: {
granted, error in
guard granted else {
let alert = UIAlertController(title: "Can't access contact", message: "Please go to Settings -> MyApp to enable contact permission", preferredStyle: .alert)
alert.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
self.window?.rootViewController?.present(alert, animated: true, completion: nil)
return
}
let keysToFetch = [CNContactFormatter.descriptorForRequiredKeys(for: .fullName),CNContactPhoneNumbersKey, CNContactEmailAddressesKey, CNContactPostalAddressesKey, CNContactImageDataKey, CNContactImageDataAvailableKey,CNContactThumbnailImageDataKey,CNContactThumbnailImageDataKey] as [Any]
let request = CNContactFetchRequest(keysToFetch: keysToFetch as! [CNKeyDescriptor])
var cnContacts = [CNContact]()
do {
try store.enumerateContacts(with: request){
(contact, cursor) -> Void in
cnContacts.append(contact)
}
} catch let error {
NSLog("Fetch contact error: \(error)")
}
for contact in cnContacts {
let fullName = CNContactFormatter.string(from: contact, style: .fullName) ?? "No Name"
var phoneNumberUnclean : String?
var labelofContact : String?
var phoneNumberClean: String?
for phoneNumber in contact.phoneNumbers {
if let number = phoneNumber.value as? CNPhoneNumber,
let label = phoneNumber.label {
let localizedLabel = CNLabeledValue<CNPhoneNumber>.localizedString(forLabel: label)
print("fullname \(fullName), localized \(localizedLabel), number \(number.stringValue)")
phoneNumberUnclean = number.stringValue
labelofContact = localizedLabel
}
}
if let imageData = contact.imageData {
profileImage = UIImage(data: imageData)
print("image \(String(describing: UIImage(data: imageData)))")
} else {
profileImage = UIImage(named: "user")
}
self.contactModelData.append(ContactsModel(contactName: fullName, contactNumber:phoneNumberUnclean!, contactLabel: labelofContact!, contactImage: profileImage!, contactNumberClean: phoneNumberUnclean!))
}
self.loginInformation.saveContactData(allContactData: self.contactModelData)
})
}