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我有一个实现 UISearchBarDelegate 的 UITableVIewController，视图嵌入在导航控制器中。

    class FacilityTableViewController: UITableViewController, UISearchResultsUpdating, UISearchBarDelegate, AmenityFilterDelegate {

        // MARK: - Public Variables

        var targetFacilities = [Int]()
        var searchController: UISearchController = UISearchController(searchResultsController: nil)

        // MARK: - Private Variables

        private var viewModel: FacilityTableViewModel!
        private let parkGreenColor = UIColor(red: 73/255, green: 136/255, blue: 84/255, alpha: 1)
        private var showEmptyMessage = false

        // MARK: - View Lifecycle

        /**
        Setup view after loading
        */
        override func viewDidLoad() {
            super.viewDidLoad()

            trackScreenView("Facility Table View")

            if targetFacilities.isEmpty {
                viewModel = FacilityTableViewModel()
            } else {
                viewModel = FacilityTableViewModel(facilityIds: targetFacilities)
            }

            // Seup search controller
            searchController.searchResultsUpdater = self
            searchController.dimsBackgroundDuringPresentation = false
            searchController.hidesNavigationBarDuringPresentation = false
            searchController.searchBar.frame = CGRectMake(self.searchController.searchBar.frame.origin.x, searchController.searchBar.frame.origin.y, searchController.searchBar.frame.size.width, 44)
            searchController.searchBar.tintColor = UIColor.whiteColor()
            searchController.searchBar.barTintColor = parkGreenColor
            searchController.searchBar.translucent = false

            self.definesPresentationContext = true

            tableView.tableHeaderView = searchController.searchBar
        }

在点击搜索之前

我发现当我禁用导航栏的半透明属性时，搜索框会向下移动它的位置。

点击搜索后

如果我设置，definesPresentationContext = false则搜索栏不会向下移动，但是如果我在搜索框中输入文本并选择其中一个结果，则无法打开生成的模式窗口。我收到以下错误：

搜索结果

    2015-03-17 15:06:56.101 VB ParkFinder[16368:2667719] Warning: Attempt to present <UINavigationController: 0x7fa2f9ced930>  on <VB_ParkFinder.FacilityTableViewController: 0x7fa2f9c27ba0> which is already presenting (null)

下面是我的segue代码：

    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        let navController = segue.destinationViewController as UINavigationController
        if segue.identifier == "facilityDetailsSegue" {
            let detailsViewController = navController.childViewControllers.last as FacilityDetailsViewController

            if let indexPath = tableView.indexPathForSelectedRow() {
                var facilityId: Int
                if searchController.active {
                    facilityId = viewModel.idForSearchResultsAtIndexPath(indexPath)
                } else {
                    facilityId = viewModel.idForFacilityAtIndexPath(indexPath)
                }

                detailsViewController.currentFacilityId = facilityId
            }
        } else if segue.identifier == "FilterPopover" {
            let aftvc = navController.childViewControllers.last as AmenityFilterTableViewController
            aftvc.delegate = self
        }
    }

我不知道该怎么做。我想关闭半透明的导航栏，并且我需要能够从搜索结果中启动模式窗口。关于如何做到这一点的任何想法？

4

1 回答 1

6

我遇到了同样的问题，看看

嵌入导航栏中时 iOS 7 中奇怪的 UISearchDisplayController 视图偏移行为

这解决了我的问题。

猜猜它可能被标记为重复，不知道该怎么做。

于 2015-03-26T03:12:07.847 回答