swift开发笔记06

// 自定义cell

class Cell: UITableViewCell {

    

    @IBOutlet weak var fenLei: UILabel!

    @IBOutlet weak var tangGuoMing: UILabel!

    

    

    var mode: Candy!

    {

        didSet {

            updateUI()

        }

    }

    

    fileprivate func updateUI()

    {

        fenLei.text = mode.name

        tangGuoMing.text =  mode.category

    }

    

}

// prepare

    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

        let vc = segue.destination as! UINavigationController

        if  let index = myTableView.indexPathForSelectedRow {

            let candy: Candy

            if searchController.isActive {

                candy = filterCandies[(index.row)]

            } else {

                candy = arrMode[(index.row)]

            }

            let detail = vc.topViewController as! ViewController

            detail.mode = candy

        }

        

        

    }

 

// searchController初始化

    func setSearchController() -> Void {

        searchController.dimsBackgroundDuringPresentation = false

        definesPresentationContext = true

        myTableView.tableHeaderView = searchController.searchBar

        searchController.searchBar.scopeButtonTitles = ["All", "Chocolate", "Hard", "Other"]

        searchController.searchBar.delegate = self

        searchController.searchResultsUpdater = self

    }

 

    func updateSearchResults(for searchController: UISearchController) {

        let searchBar = searchController.searchBar

        let scope = searchBar.scopeButtonTitles![searchBar.selectedScopeButtonIndex]

        filterContentForSearchText(text: searchBar.text!, scope: scope)

    }

    

    func searchBar(_ searchBar: UISearchBar, selectedScopeButtonIndexDidChange selectedScope: Int) {

        filterContentForSearchText(text: searchBar.text!, scope: searchBar.scopeButtonTitles![selectedScope])

    }