[iphone] 以编程方式请求访问联系人


Answers

这对我来说是完美的伎俩!

在iOS6上,苹果推出新的隐私控制,用户可以通过每个应用程序控制联系人和日历的访问权限。 所以,在代码方面,你需要添加一些方法来请求权限。 在iOS5或之前,我们可以随时致电

ABAddressBookRef addressBook = ABAddressBookCreate();

要获得地址簿没有任何问题,但在iOS6中,如果您没有权限,则此调用将返回空指针。 那就是为什么我们需要改变方法来获取ABAddressBookRef。

__block BOOL accessGranted = NO;
if (ABAddressBookRequestAccessWithCompletion != NULL) { // we're on iOS 6
    dispatch_semaphore_t sema = dispatch_semaphore_create(0);
    ABAddressBookRequestAccessWithCompletion(addressBook, ^(bool granted, CFErrorRef error) {
        accessGranted = granted;
        dispatch_semaphore_signal(sema);
    });
    dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER);
    dispatch_release(sema);   
}
else { // we're on iOS 5 or older
    accessGranted = YES;
}

if (accessGranted) {
    // Do whatever you want here.
}

在代码中,信号量用于阻塞直到响应,而ABAddressBookRequestAccessWithCompletion会在应用程序没有询问之前询问权限。 否则,只会按照设置 - 隐私 - 联系中的设置进行操作。

消息来源: http://programmerjoe.blogspot.com/2012/10/ios6-permissions-contacts.htmlhttp://programmerjoe.blogspot.com/2012/10/ios6-permissions-contacts.html

Question

自从更新到iOS 6后,我注意到我的代码将联系人添加到iPhone的通讯簿不再有效。 我相信这是一个与权限相关的问题,因为Apple在访问联系人之前需要用户许可(解决this问题)。

我预计该应用会自动请求访问联系人的权限,如下面的屏幕截图所示,但不会。 尝试添加联系人仅仅因ABAddressBookErrorDomain error 1失败。

我是否需要以编程方式启动对联系人请求对话框的访问? 这是如何完成的?




ABAddressBookRequestAccessWithCompletion(ABAddressBookCreateWithOptions(NULL, nil), ^(bool granted, CFErrorRef error) {
        dispatch_async(dispatch_get_main_queue(), ^{
            if (!granted){
                    [[[UIAlertView alloc] initWithTitle:@"Contacts Access Denied"
                                                message:@"This app requires access to your device's Contacts.\n\nPlease enable Contacts access for this app in Settings / Privacy / Contacts"
                                               delegate:nil
                                      cancelButtonTitle:@"Dismiss"
                                      otherButtonTitles:nil] show];
            } else {
                //access authorized
            }
        });
    });

用于添加说明以提醒InfoPlist.strings中的使用。

NSContactsUsageDescription = "TESTING!";




- (void)viewDidLoad
{
    [super viewDidLoad];


    [self loadPhoneContacts];
}



-(void)loadPhoneContacts{

    ABAuthorizationStatus status = ABAddressBookGetAuthorizationStatus();

    if (status == kABAuthorizationStatusDenied) {
        // if you got here, user had previously denied/revoked permission for your
        // app to access the contacts, and all you can do is handle this gracefully,
        // perhaps telling the user that they have to go to settings to grant access
        // to contacts

        [[[UIAlertView alloc] initWithTitle:nil message:@"This app requires access to your contacts to function properly. Please visit to the \"Privacy\" section in the iPhone Settings app." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil] show];
        return;
    }

    CFErrorRef error = NULL;
    ABAddressBookRef addressBook = ABAddressBookCreateWithOptions(NULL, &error);

    if (error) {
        NSLog(@"ABAddressBookCreateWithOptions error: %@", CFBridgingRelease(error));
        if (addressBook) CFRelease(addressBook);
        return;
    }

    if (status == kABAuthorizationStatusNotDetermined) {

        // present the user the UI that requests permission to contacts ...

        ABAddressBookRequestAccessWithCompletion(addressBook, ^(bool granted, CFErrorRef error) {
            if (error) {
                NSLog(@"ABAddressBookRequestAccessWithCompletion error: %@", CFBridgingRelease(error));
            }

            if (granted) {
                // if they gave you permission, then just carry on

                [self listPeopleInAddressBook:addressBook];
            } else {
                // however, if they didn't give you permission, handle it gracefully, for example...

                dispatch_async(dispatch_get_main_queue(), ^{
                    // BTW, this is not on the main thread, so dispatch UI updates back to the main queue

                    [[[UIAlertView alloc] initWithTitle:nil message:@"This app requires access to your contacts to function properly. Please visit to the \"Privacy\" section in the iPhone Settings app." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil] show];
                });
            }

            if (addressBook) CFRelease(addressBook);
        });

    } else if (status == kABAuthorizationStatusAuthorized) {
        [self listPeopleInAddressBook:addressBook];
        if (addressBook) CFRelease(addressBook);
    }
}

- (void)listPeopleInAddressBook:(ABAddressBookRef)addressBook
{
    NSInteger numberOfPeople = ABAddressBookGetPersonCount(addressBook);
    NSArray *allPeople = CFBridgingRelease(ABAddressBookCopyArrayOfAllPeople(addressBook));

    for (NSInteger i = 0; i < numberOfPeople; i++) {
        ABRecordRef person = (__bridge ABRecordRef)allPeople[i];

        NSString *firstName = CFBridgingRelease(ABRecordCopyValue(person, kABPersonFirstNameProperty));
        NSString *lastName  = CFBridgingRelease(ABRecordCopyValue(person, kABPersonLastNameProperty));
        NSLog(@"Name:%@ %@", firstName, lastName);

        ABMultiValueRef phoneNumbers = ABRecordCopyValue(person, kABPersonPhoneProperty);

        CFIndex numberOfPhoneNumbers = ABMultiValueGetCount(phoneNumbers);
        for (CFIndex i = 0; i < numberOfPhoneNumbers; i++) {
            NSString *phoneNumber = CFBridgingRelease(ABMultiValueCopyValueAtIndex(phoneNumbers, i));
            NSLog(@"  phone:%@", phoneNumber);
        }

        CFRelease(phoneNumbers);

        NSLog(@"=============================================");
    }
}



对于联系人框架:

- (void)checkPermissionForCNContacts
{
    switch ([CNContactStore authorizationStatusForEntityType:CNEntityTypeContacts])
    {
        case CNAuthorizationStatusNotDetermined:
        {
            [[[CNContactStore alloc] init] requestAccessForEntityType:CNEntityTypeContacts completionHandler:^(BOOL granted, NSError * _Nullable error) {
                if (granted == YES)
                    [self showCNContactPicker];
            }];
        }
            break;
        case CNAuthorizationStatusRestricted:
        case CNAuthorizationStatusDenied:
                // Show custom alert
            break;
        case CNAuthorizationStatusAuthorized:
            [self showCNContactPicker];
            break;
    }
}



使用iOS 6你必须要求这样的权限

requestAccessToEntityType:EKEntityTypeEvent completion:



此代码显示了如何设置权限以及如何从手机获取所有联系人,并使用标签标签在列表中显示联系人

var contactStore = CNContactStore()
var contactArray = [CNContact]()

func getContacts()
{

    if CNContactStore.authorizationStatus(for: .contacts) == .notDetermined
    {

        contactStore.requestAccess(for: .contacts, completionHandler: { (authorized:Bool, error:Error?) in

            if authorized {



                let requestForContacts = CNContactFetchRequest(keysToFetch: [CNContactFormatter.descriptorForRequiredKeys(for: CNContactFormatterStyle.fullName), CNContactPhoneNumbersKey as CNKeyDescriptor, CNContactImageDataKey as CNKeyDescriptor, CNContactNicknameKey as CNKeyDescriptor])
                do{
                    try self.contactStore.enumerateContacts(with: requestForContacts) { (contacts : CNContact, stop: UnsafeMutablePointer<ObjCBool>) -> Void in
                        self.contactArray.append(contacts)
                        //print("hello")
                    }
                }
                catch {
                    print("EXCEPTION COUGHT")
                }
            }
        })
    }
    else if CNContactStore.authorizationStatus(for: .contacts) == .authorized
    {
        let requestForContacts = CNContactFetchRequest(keysToFetch: [CNContactFormatter.descriptorForRequiredKeys(for: CNContactFormatterStyle.fullName), CNContactPhoneNumbersKey as CNKeyDescriptor, CNContactImageDataKey as CNKeyDescriptor, CNContactNicknameKey as CNKeyDescriptor])
        do{
            try self.contactStore.enumerateContacts(with: requestForContacts) { (contacts : CNContact, stop: UnsafeMutablePointer<ObjCBool>) -> Void in
                self.contactArray.append(contacts)
            }
        }
        catch {

        }

    }
}

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
    getContacts()

}

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
    //print(contactArray)
    return contactArray.count

}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    let cell = tableView.dequeueReusableCell(withIdentifier: "defaultCell")

    if cell != nil{

        //var dig = String()
        var hmdig = [String]()

        let names = contactArray[indexPath.row]
        print(names)

        let name1 = names.givenName+" "+names.middleName+" "+names.familyName

        for number in names.phoneNumbers
        {
            let phoneNumber = number.value

            let dig = (phoneNumber.value(forKey: "digits") as? String)!
            hmdig.append(dig)

        }

        // Set the contact image.
        if let imageData = names.imageData
        {
            let myImage = cell?.viewWithTag(30) as! UIImageView
            myImage.image = UIImage(data: imageData)
        }


//            let niknm = names.nickname

        let nameLable1 = cell?.viewWithTag(10) as! UILabel
                nameLable1.text = name1

        let nameLable2 = cell?.viewWithTag(20) as? UILabel

            nameLable2?.text = hmdig.joined(separator: ",\n")

//           let nameLable3 = cell?.viewWithTag(40) as? UILabel
//                nameLable3?.text = niknm


        return cell!

    }
    else{

        return UITableViewCell()
    }
}





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