从CFArray获取值时出错

Question

我正在尝试从地址簿中获取联系人。我的代码在Objective C中正常工作，但当我将其转换为swift时，我遇到了错误

无法转换类型'Swift.UnsafePointer＆lt;（）＆gt;'的值到'Swift.AnyObject'

以下是我的代码

    var errorRef: Unmanaged<CFError>? = nil
    let addressBook: ABAddressBookRef = ABAddressBookCreateWithOptions(nil, &errorRef).takeRetainedValue()
    let allPeople = ABAddressBookCopyArrayOfAllPeople(addressBook).takeRetainedValue() as NSArray //as [ABRecordRef]
    let numberOfPeople = ABAddressBookGetPersonCount(addressBook)

    for (var i=0; i < numberOfPeople; i++){
        runOnMainQueueWithoutDeadlocking({ () -> () in
            ProgressHUD.show("Reading Contact \(i) out of \(numberOfPeople)")
        })

        let aPerson = CFArrayGetValueAtIndex(allPeople, i) as! ABRecordRef     //Error here
    }

如何将记录转换为ABRecordRef。请帮忙

Answer 1

您无法强制将UnsafePointer<Void>强制转换为某种类型。您必须先将该void指针转换为UnsafePointer<Type>然后获取其内存：

let aPerson = UnsafePointer<ABRecordRef>(CFArrayGetValueAtIndex(allPeople, i)).memory

仅供参考... ABAddressBook已在iOS 9上弃用。对于定位该操作系统的新代码，请改用CNContactStore。