Question

只是想知道用于Raywenderlich Tutorial的代码如何添加UISearchController以及如何将其与UITableViewController一起使用我似乎无法使其正常运行有人告诉我，它可能已经在iOS 8.0中被弃用，有人知道如何仍然这样做吗？

UISearchController内置于UIViewController NOT StoryBoard！

Answer 1

UISearchDisplayController已弃用并由UISearchController取代。并且可在 iOS 8.0 及更高版本中使用。

UISearchController类定义了一个管理它的接口与搜索结果一致地显示搜索栏控制器的内容。搜索结果控制器，a 由searchResultsController指定的UIViewController对象 property，管理搜索结果

https://developer.apple.com/library/prerelease/ios/documentation/UIKit/Reference/UISearchController/index.html

以下是一个示例，我如何使用UITableView中的UIViewController重新定位。如果您想使用UITableViewController，请进行一些更改......

import UIKit

class ViewController: UIViewController , UITableViewDataSource, UITableViewDelegate,UISearchResultsUpdating {


    @IBOutlet weak var tblView: UITableView!

    var tabledata = ["lucques","chickendijon","godaddy","amazon","chris","ambata","bankofamerica","abelcine","AUTO + TRANSPORTATION","BILLS + UTILITIES","FOOD + DINING","HEALTH","AutoCare", "Auto Payment" , "Gas+Fuel","Electric Bill", "Internet/Television","Fast Foodd", "Gorceries" , "Restaurants","Gym Membership", "Health Insurance","auto","note-bullet","knife","heart"]

    var filteredTableData = [String]()

    var resultSearchController = UISearchController()



    override func viewDidLoad() {
        super.viewDidLoad()

        tblView.delegate = self
        tblView.dataSource = self

        self.resultSearchController = ({

            let controller = UISearchController(searchResultsController: nil)
            controller.searchResultsUpdater = self
            controller.dimsBackgroundDuringPresentation = false
            controller.searchBar.sizeToFit()
            controller.searchBar.barStyle = UIBarStyle.Black
            controller.searchBar.barTintColor = UIColor.whiteColor()
            controller.searchBar.backgroundColor = UIColor.clearColor()
            self.tblView.tableHeaderView = controller.searchBar


            return controller


        })()
        self.tblView.reloadData()

    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


     func numberOfSectionsInTableView(tableView: UITableView) -> Int {

        return 1

    }



     func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

        if self.resultSearchController.active {


           return self.filteredTableData.count

        }else{


            return self.tabledata.count



        }

    }



     func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

        var section = indexPath.section
        var row = indexPath.row
        let cell: UITableViewCell = UITableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier:"addCategoryCell")
        cell.selectionStyle =  UITableViewCellSelectionStyle.None
        cell.backgroundColor = UIColor.clearColor()
        cell.contentView.backgroundColor = UIColor.clearColor()
        cell.textLabel?.textAlignment = NSTextAlignment.Left
        cell.textLabel?.textColor = UIColor.blackColor()
        cell.textLabel?.font = UIFont.systemFontOfSize(14.0)

        if self.resultSearchController.active {

              cell.textLabel?.text = filteredTableData[indexPath.row]


        }else{

                 cell.textLabel?.text = tabledata[indexPath.row]

        }

        return cell

    }


    func updateSearchResultsForSearchController(searchController: UISearchController) {

        filteredTableData.removeAll(keepCapacity: false)

        let searchPredicate = NSPredicate(format: "SELF CONTAINS[c] %@", searchController.searchBar.text)

        let array = (tabledata as NSArray).filteredArrayUsingPredicate(searchPredicate)
        filteredTableData = array as! [String]

        self.tblView.reloadData()



    }



}

使用UITableView实现UISearchController

1 个答案: