当用户点击行时，表格视图在导航栏下向上滑动 [英] table view slides up under navigation bar when user taps row

问题描述

我有一个 UINavigationController (NC)，其中包含一个 UITableViewController (TVC0).当用户点击一行时，它将加载一个 UIPageViewController (PVC)，该页面在其他 UITableViewController s(TVC1)之间来回翻页.

I have a UINavigationController (NC) containing a UITableViewController (TVC0). When the user taps a row, it loads a UIPageViewController (PVC), which pages back and forth between other UITableViewControllers (TVC1).

TVC0出现在NC内部(这意味着它不会隐藏在顶部的导航栏或底部的选项卡栏的后面).当它推动PVC时，第一个TVC1出现在导航栏和标签栏的边界内.但是，当我滑动时，内部的TVC1隐藏在导航栏和标签栏的后面.我可以拉出以显示内容，但是放开时，它会弹回到条形图的后面.

TVC0 shows up inside NC (meaning it doesn't hide behind the navigation bar at the top or the tab bar at the bottom). When it pushes PVC, the first TVC1 appears inside the bounds of the nav bar and tab bar. However when I swipe, the TVC1s inside are hidden behind the navigation bar and tab bar. I can pull to reveal the contents, but when I release, it snaps back to behind the bar.

如何强制所有内容出现在两个小节之间?我无法使用情节提要(因为它是旧版应用程序)，并且内嵌...选项不可用.

How can I force everything to appear between the two bars? I can't use storyboard (because it's a legacy app) and the embed in... option isn't available.

我添加了一些日志记录，发现我的嵌入式TVC1s帧的绝对原点为0、64，但是一旦点击，它就会变为0、0.如果我找不到真正的解决方案，我可以总是通过添加64来伪造它，但我宁愿找出实际上是什么错误.

I added some logging and discovered that my embedded TVC1s frame has an absolute origin of 0, 64, but as soon as I tap, it goes to 0, 0. If I can't figure out a real solution, I can always fake it by adding 64, but I'd much rather figure out what's actually wrong.

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[更多编辑]

我正在测试iOS 6模拟器的另一个区域，并发现此分页在iOS 6中可以正常工作.所以我看到的问题是iOS 7特有的.

I was testing another area in the iOS 6 simulator and discovered that this paging works flawlessly in iOS 6. So the issue I'm seeing is iOS 7 specific.

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这是我的TVC0 viewDidLoad ，PVC pageViewController:viewControllerBeforeViewController:和助手 viewControllerAtIndex::

Here is my TVC0 viewDidLoad, PVC pageViewController:viewControllerBeforeViewController:, and a helper viewControllerAtIndex::

- (void) viewDidLoad
{
    [super viewDidLoad];
    NSDictionary* options = [NSDictionary dictionaryWithObject:
                             [NSNumber numberWithInteger: UIPageViewControllerSpineLocationMin]
                                                        forKey:
                             UIPageViewControllerOptionSpineLocationKey];
    self.pageController = [[UIPageViewController alloc] initWithTransitionStyle:
                           UIPageViewControllerTransitionStyleScroll
                                                          navigationOrientation:
                           UIPageViewControllerNavigationOrientationHorizontal
                                                                        options: options];

    self.pageController.dataSource = self;
    self.pageController.view.frame = self.view.frame;
    NSArray* viewControllers =
            [NSArray arrayWithObject: [self viewControllerAtIndex: self.initialIndex]];

    [self.pageController setViewControllers: viewControllers
                                  direction: UIPageViewControllerNavigationDirectionForward
                                   animated: NO
                                 completion: nil];

    [self addChildViewController: self.pageController];
    [self.view addSubview: self.pageController.view];
    [self.pageController didMoveToParentViewController: self];

    for (UIGestureRecognizer* recognizer in self.pageController.gestureRecognizers)
    {
        if ([recognizer isKindOfClass: [UITapGestureRecognizer class]])
        {
            recognizer.enabled = NO;
        }
    }
}

// SearchResultsList is TVC1
- (SearchResultsList*) viewControllerAtIndex: (NSUInteger) index
{
    if (index >= self.items.count)
    {
        return nil;
    }

    SearchResultsList* retVal = [[SearchResultsList alloc]
                                    initWithNibName: @"SearchResultsList" bundle: nil];

    MyListItem* myItem = [self.items objectAtIndex: index];
    MyMatchesRequest* matches = [[MyMatchesRequest alloc] initWithItemId: myItem.itemId];
    [matches execute: ^(MySearchResults* results)
     {
         retVal.tableData = [NSMutableArray arrayWithArray: results.items];
         retVal.view.frame = self.view.frame;
         retVal.myItem = myItem;
         retVal.index = index;
         self.title = myItem.displayText;
         [[retVal tableView] reloadData];
     }];

    return retVal;
}

- (UIViewController*) pageViewController: (UIPageViewController*) pageViewController
      viewControllerBeforeViewController: (UIViewController*) viewController
{
    SearchResultsList* vc = (SearchResultsList*)viewController;
    if (vc.index == 0)
    {
        [self.navigationController popViewControllerAnimated: YES];
        return nil;
    }

    return [self viewControllerAtIndex: vc.index - 1];
}

推荐答案

因为要在容器中显示视图控制器，该容器小于您需要设置的屏幕的整个大小

Because you're presenting view controllers in a container which is less than the full size of the screen you need to set

self.pageViewController.definesPresentationContext = YES; 

 viewControllerWhichIsApageInPageController.modalPresentationStyle = UIModalPresentationCurrentContext

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