FBFriendPickerViewController（FBTaggableFriendPickerViewController）没有导航栏

Question

在iOS 8FBFriendPickerViewController显示没有导航栏（在iOS 7一切都很完美）。 我使用Facebook-iOS-SDK v3.9.0，但我检查了最新的SDK，也有同样的行为（我运行示例项目称为Scrumptious）。

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

确保您nav.bar不掩饰和做俯卧撑。

[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>，则：

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：