Ios UIAlertView并请求访问通讯簿

这里有一点我不明白，当提示用户授予访问权限时，如果他点击cancel，我不会显示我的第二个UIAlertView，即accessDenied警报视图

另外，我觉得有一些我不明白的事情与调度和队列有关

试试这个

if (ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusNotDetermined) {
    ABAddressBookRequestAccessWithCompletion(addressBookRef, ^(bool granted, CFErrorRef error) {
        if (granted) {
            // First time access has been granted, add the contact
            [self prepareContactsIDs];
        } else {
            UIAlertView *accessDenied = [[UIAlertView alloc] initWithTitle:@"Need Access to Addressbook" message:@"KeepItClean requires an access to addressbook in order to be usable" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil];
            [accessDenied show];
        }
    });
}
else if (ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusAuthorized) {
    // The user has previously given access, add the contact
    if ([self isFirstRun]) {
        [self prepareContactsIDs];
    }
}
else {
    // The user has previously denied access
    // Send an alert telling user to change privacy setting in settings app
    UIAlertView *accessDenied = [[UIAlertView alloc] initWithTitle:@"Need Access to Addressbook" message:@"KeepItClean requires an access to addressbook in order to be usable" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil];
    [accessDenied show];
}

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为什么要发布粘贴而不是直接发布代码@这一次，toasted_flakes很好地为您做了这件事，但在将来，请在答案中发布代码。您的答案与我的问题完全无关。。请再次检查我的问题和代码。有什么吗？！我还是被卡住了，我不理解这种奇怪的行为

ABPeoplePickerNavigationController *peoplePicker = [[ABPeoplePickerNavigationController  alloc] init];
peoplePicker.peoplePickerDelegate= self;
ABAddressBookRef UsersAddressBook = ABAddressBookCreateWithOptions(NULL, NULL);

if (ABAddressBookGetAuthorizationStatus()!= kABAuthorizationStatusDenied)
{ 
    //Show alert of access
} 
else
{
    //Show alert of access denied
}