在iOS8上將ABPersonViewController推送到ABPeoplePickerNavigationController

Question

介紹人員選擇器

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

在iOS 7中實現ABPeoplePickerNavigationControllerDelegate

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

到現在為止還挺好。 人員視圖控制器按預期方式提供。 iOS7方法返回一個值-可以返回NO以確保人員選擇器保持打開狀態。 在iOS8中，不建議使用上述委托方法，並且必須實現新方法：

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

人員視圖控制器被推到人員選擇器，但是一秒鍾之后，人員選擇器被關閉（與人員視圖控制器一起）。

有沒有一種方法可以防止人員選擇器在iOS8上被解雇？ 還有其他建議嗎？

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，它說pushViewController已過時，我看到您正在嘗試在iOS8中實現它，因此請嘗試一下...像這樣的一行：

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

Answer 3

在iOS8中，初始化ABPeoplePickerNavigationController時，需要添加以下代碼，否則peoplePickerNavigationController將在您選擇聯系人后立即關閉。

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