FBFriendPickerViewController（FBTaggableFriendPickerViewController）没有导航栏

Question

在iOS 8 FBFriendPickerViewController中显示没有导航栏（在iOS 7中，一切都很完美）。 我使用Facebook-iOS-SDK v3.9.0，但我检查了最新的SDK并且也有相同的行为（我运行名为Scrumptious的示例项目。）

代码：

- (void)pickFacebookFriends{
    FBFriendPickerViewController *friendPicker = [[FBFriendPickerViewController alloc] init];
    ABAddressBookCreateWithOptions(NULL, NULL);
    ABPersonSortOrdering sortOrdering = ABPersonGetSortOrdering();
    ABPersonCompositeNameFormat nameFormat = ABPersonGetCompositeNameFormatForRecord(NULL);

    friendPicker.sortOrdering = (sortOrdering == kABPersonSortByFirstName) ? FBFriendSortByFirstName : FBFriendSortByLastName;
    friendPicker.displayOrdering = (nameFormat == kABPersonCompositeNameFormatFirstNameFirst) ? FBFriendDisplayByFirstName : FBFriendDisplayByLastName;
    friendPicker.fieldsForRequest = [[NSSet alloc] initWithObjects:@"picture", nil];
    [friendPicker loadData];
    [friendPicker presentModallyFromViewController:self
                                          animated:YES
                                           handler:^(FBViewController *sender, BOOL donePressed) {
                                               if (donePressed) {
                                                   if (friendPicker.selection.count > 0) {

                                                       [self dismissViewControllerAnimated:YES completion:nil];
                                                   }
                                               }}];
    return;

    [self presentViewController:friendPickerController animated:YES completion:nil];
}

这是截图：  

Answer 1

确保nav.bar不隐藏并按下。

[self.navigationController setNavigationBarHidden:NO animated:NO];

_taggableFriendPickerViewController = [FBTaggableFriendPickerViewController new];
[_taggableFriendPickerViewController loadData];
_taggableFriendPickerViewController.delegate = self;
[self.navigationController pushViewController:_taggableFriendPickerViewController animated:YES];

#pragma mark - FBViewControllerDelegate

///When you press on done button will call this method.
- (void)facebookViewControllerDoneWasPressed:(FBViewController *)sender
{
 _arrayWithUsers = ((FBTaggableFriendPickerViewController *)sender).selection;
}

Answer 2

您需要符合<FBViewControllerDelegate>，然后符合：

FBFriendPickerViewController *friendPicker = [[FBFriendPickerViewController alloc] init];
    friendPicker.delegate = self;
    ABAddressBookCreateWithOptions(NULL, NULL);
    ABPersonSortOrdering sortOrdering = ABPersonGetSortOrdering();
    ABPersonCompositeNameFormat nameFormat = ABPersonGetCompositeNameFormatForRecord(NULL);

    friendPicker.sortOrdering = (sortOrdering == kABPersonSortByFirstName) ? FBFriendSortByFirstName : FBFriendSortByLastName;
    friendPicker.displayOrdering = (nameFormat == kABPersonCompositeNameFormatFirstNameFirst) ? FBFriendDisplayByFirstName : FBFriendDisplayByLastName;
    friendPicker.fieldsForRequest = [[NSSet alloc] initWithObjects:@"picture", nil];
    [friendPicker loadData];

UINavigationController *nc = [[UINavigationController alloc]initWithRootViewController:friendPicker];
[self presentViewController:nc animated:YES completion:nil];

- (void)facebookViewControllerDoneWasPressed:(id)sender{
    NSLog(@"%s",__PRETTY_FUNCTION__);
    FBFriendPickerViewController *friendPicker = sender;
    NSLog(friendPicker.selection.description);
}

结果是：