相关疑难解决方法(0)

我已经实现了一个UISearchBar来搜索外部API中的项目目录.搜索功能按预期工作,但问题是,每次按下取消按钮(位于搜索栏文本字段的右侧)时,整个搜索栏向下移动一行,看起来它会推动整个表视图也是如此.

因此,如果我在搜索栏文本字段中键入一个字母,然后按取消,搜索栏文本字段向下移动44px,这是行高,并且表视图本身也会被按下相同的量.如果我连续按类型,然后按取消,搜索栏将在视图中进一步向下移动.任何建议都会很棒!这是我的代码:

import Foundation
import UIKit
import ItemLogger


private extension Selector {
    static let dismiss = #selector(SearchVC.dismissView)
}


extension SearchVC: UISearchResultsUpdating {
    func updateSearchResultsForSearchController(searchController: UISearchController) {
        let searchBar = searchController.searchBar
        let scope = searchBar.scopeButtonTitles![searchBar.selectedScopeButtonIndex]
        filterContentForSearchText(searchController.searchBar.text!, scope: scope)
    }
}
extension SearchVC: UISearchBarDelegate {
    func searchBar(searchBar: UISearchBar, selectedScopeButtonIndexDidChange selectedScope: Int) {
        filterContentForSearchText(searchBar.text!, scope: searchBar.scopeButtonTitles![selectedScope])
    }
}

class SearchVC: UITableViewController {

    let searchController = UISearchController(searchResultsController: nil)
    var searchedItems = [ItemLog]()
    var searchedImages = [UIImage]()

    override func viewDidLoad() {
        super.viewDidLoad()

        let leftBarButtonItem = …