联系人访问权限在模拟器中显示，但有时在真实设备上不显示 swift

Question

我有一个请求访问联系人的简单代码

override func viewDidLoad() {
    super.viewDidLoad()
   fetchContacts()
}
func fetchContacts()
{
    let allowedCharset = CharacterSet
        .decimalDigits
    let store = CNContactStore()
    store.requestAccess(for: .contacts) { (granted, err) in
        if let error = err
            {
                print("failed to access",error)
                return
            }
        if (granted)
        {
            ///// after we get access to fetch contacts //// we reload table view data ///
            print("access granted")
            let keys = [CNContactGivenNameKey,CNContactPhoneNumbersKey,CNContactFamilyNameKey,CNContactMiddleNameKey]
            let request = CNContactFetchRequest(keysToFetch: keys as [CNKeyDescriptor])
            do {
                try store.enumerateContacts(with: request, usingBlock: { (contact, stopPointerIfYouWantToStopEnumerating) in
                    let array = contact.phoneNumbers
                    for number in array
                    {
                        let fullName = contact.givenName + contact.middleName
                        let lastName = contact.familyName
                        let value = number.value.stringValue
                        let number = String(value.unicodeScalars.filter(allowedCharset.contains))
                        print (number)
                        /////////// 4 cases we just need the phone not to be zero ///////

                        if (fullName != "SPAM")
                        {
                            self.firstName.append(fullName)
                            self.lastName.append(lastName)
                            self.numberArray.append(number)
                        }
                    }

                })
                //self.table()
            }
            catch let err2 {
                print ("failer to enurmerate",err2)
            }
          }
        }
}

此代码在模拟器上运行良好。当我在模拟器上删除应用程序并清理然后构建并再次运行应用程序时它工作正常弹出视图出现权限请求，但是在真实设备上它工作当我从中删除应用程序时第一次弹出权限phone 然后清理然后构建运行我没有再次收到 pop 权限请求

Answer 1

当您删除应用程序时，iOS 会保留捆绑包标识符一天的权限，如果您想在同一天删除它，您有三个选择

通过增加 iPhone OS (iOS) 日期来更改 iPhone OS (iOS) 数据
等一天
重置设备设置

Click here apple docs 参考，我截屏了，你也可以查看。

联系人访问权限在模拟器中显示，但有时在真实设备上不显示 swift

contact access permission is shown in simulator but not on real device sometimes swift

ios

swift

cncontactstore