Question

我正在使用以下代码，我的应用程序在iOS 7及以上版本上不要求iOS 6的许可，它要求联系人权限访问。在iOS 6上，它也不会在隐私设置中显示应用程序。我已阅读其他一些帖子但未找到任何解决方案。

App crashed in iOS 6 when user changes Contacts access permissions

if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"6.0")) {

    __block CDNDeviceContact *controller = self;

    // Request authorization to Address Book
    ABAddressBookRef addressBookRef = ABAddressBookCreateWithOptions(NULL, NULL);

    if (ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusNotDetermined) {

        ABAddressBookRequestAccessWithCompletion(addressBookRef,
                                                 ^(bool granted, CFErrorRef error) {
                                                     if (granted)
                                                         [controller loadContacts];
                                                     else [controller doAlertForContact];
                                                 });
    } else if (ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusAuthorized) {

        // The user has previously given access, add the contact
        [self loadContacts];
    } else {
        [controller doAlertForContact];
    }
    if (addressBookRef)  CFRelease(addressBookRef);
}

Answer 1

如果之前已向用户显示获得许可的请求，则不会再次显示该请求。根据{{3}}，

首次请求访问时，系统仅向用户请求权限。以后的呼叫使用用户授予的权限。

如果在模拟器中测试，我建议你去iOS模拟器 - ＆gt;重置内容和设置，以便您能够模拟事件。

Answer 2

您不需要SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO，也无需创建ABAddressBookRef。

对我而言，这就像魅力一样：

if (ABAddressBookGetAuthorizationStatus) {
    switch (ABAddressBookGetAuthorizationStatus()) {
        case kABAuthorizationStatusNotDetermined:{
            ABAddressBookRequestAccessWithCompletion(self.addressBook, ^(bool granted, CFErrorRef error) {
                self.addContactButton.enabled = granted;
                if (granted) {
                    // granted
                } else {
                    // User denied access
                }});
        } break;

        case kABAuthorizationStatusDenied: break;
        case kABAuthorizationStatusAuthorized: break;
        default: break;
    }
}

应用不要求iOS 6上的联系人访问权限

2 个答案: