在iOS8上将ABPersonViewController推送到ABPeoplePickerNavigationController

Question

介绍人员选择器

ABPeoplePickerNavigationController *peoplePicker = [[ABPeoplePickerNavigationController alloc] init];
peoplePicker.allowsActions = YES;
peoplePicker.allowsEditing = NO;
peoplePicker.peoplePickerDelegate = self;
[self presentViewController:peoplePicker animated:YES completion:nil];

在iOS 7中实现ABPeoplePickerNavigationControllerDelegate

- (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person {
  ABPersonViewController *personViewController = [[ABPersonViewController alloc] init];
  personViewController.displayedPerson = person;
  [peoplePicker pushViewController:personViewController animated:YES];
  return NO;
}

到现在为止还挺好。 人员视图控制器按预期方式提供。 iOS7方法返回一个值-可以返回NO以确保人员选择器保持打开状态。 在iOS8中，不建议使用上述委托方法，并且必须实现新方法：

- (void)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker didSelectPerson:(ABRecordRef)person {
  ABPersonViewController *personViewController = [[ABPersonViewController alloc] init];
  personViewController.displayedPerson = person;
  [peoplePicker pushViewController:personViewController animated:YES];
}

人员视图控制器被推到人员选择器，但是一秒钟之后，人员选择器被关闭（与人员视图控制器一起）。

有没有一种方法可以防止人员选择器在iOS8上被解雇？ 还有其他建议吗？

Answer 1

-(void)peoplePickerNavigationController:(ABPeoplePickerNavigationController*)peoplePicker didSelectPerson:(ABRecordRef)person
{ 
    [self dismissViewControllerAnimated:NO completion:^{
      ABPersonViewController *personController = [[ABPersonViewController alloc] init];

      [personController setDisplayedPerson:person];
      [personController setPersonViewDelegate:self];
      [personController setAllowsEditing:NO];
      personController.displayedProperties = [NSArray arrayWithObjects:[NSNumber numberWithInt:kABPersonPhoneProperty], nil];

      [self.navigationController pushViewController:personController animated:YES];
    }];
}

Answer 2

如何使用presentViewController而不是pushViewController ...在Xcode 6中，它说pushViewController已过时，我看到您正在尝试在iOS8中实现它，因此请尝试一下...像这样的一行：

[peoplePicker presentViewController: personViewController animated: YES completion: nil];

Answer 3

在iOS8中，初始化ABPeoplePickerNavigationController时，需要添加以下代码，否则peoplePickerNavigationController将在您选择联系人后立即关闭。

if(IOS8_OR_LATER){
    peoplePicker.predicateForSelectionOfPerson = [NSPredicate predicateWithValue:false]; }