我有两个视图控制器 ControllerA 和 ControllerB。两者都没有 NavigationBar，因为我在两个控制器中都隐藏了 navigationBar。在 ControllerB 上有一个 tableview，最上面是一个 searchBar。在选择任何 tablerow 时，我将控制器解散回 ControllerA。问题是它在控制器 A 上显示了一些栏，我不知道如何隐藏它。如果我不搜索任何内容并按下控制器 B 上的后退按钮，那么控制器 A 上不会出现导航栏。但是，如果我选择某些东西，它就会显示。我认为这与 searchBar 演示文稿有关。这是我的代码
控制器B
override func viewDidLoad() {
super.viewDidLoad()
self.resultSearchController = ({
let controller = UISearchController(searchResultsController: nil)
controller.searchResultsUpdater = self
controller.dimsBackgroundDuringPresentation = false
controller.searchBar.sizeToFit()
controller.searchBar.placeholder = "Search City"
self.tableView.tableHeaderView = controller.searchBar
self.definesPresentationContext = true
return controller
})()
self.tableView.reloadData()
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if (self.resultSearchController.active) {
return self.filteredKeys.count
} else {
return dict.count-1
}
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! CountryTableViewCell
if(self.resultSearchController.active){
// let key = self.filteredKeys[indexPath.row]
//let dictionary = self.dict[key] as! NSDictionary
let cityName = (((self.dict["\(indexPath.row)"] as?NSDictionary)!["Country"] as?NSDictionary)!["city_name"] as?NSString)
let stateName = (((self.dict["\(indexPath.row)"] as?NSDictionary)!["Country"] as? NSDictionary)!["state_name"] as? NSString)
let shortName = (((self.dict["\(indexPath.row)"] as?NSDictionary)!["Country"] as? NSDictionary)!["short_country_name"] as? NSString)
if (cityName !== "-" || shortName !== "-"){
cell.stateNameLabel.text = stateName as? String
cell.cityNameLabel.text = cityName as? String
cell.shortNameLabel.text = shortName as? String
}
}
return cell
}
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let id = Int((((dict["\(indexPath.item)"] as?NSDictionary)!["Country"] as?NSDictionary)!["id"] as?NSString)! as String)
let cityName = (((dict["\(indexPath.item)"] as?NSDictionary)!["Country"] as?NSDictionary)!["city_name"] as?NSString)! as String
let countryShortName = (((dict["\(indexPath.item)"] as?NSDictionary)!["Country"] as?NSDictionary)!["short_country_name"] as?NSString)! as String
delegate.country(id!,cityName: cityName, countryShortName: countryShortName,departureOrArrivalSegue: departureOrArrivalSegue!)
self.navigationController!.popViewControllerAnimated(true)
}