if let items = json.item のInitializer for conditional binding must have Optional type, not '[ViewController.ItemJson]'がエラーが出て消えません。
//
// ViewController.swift
// myokashi
//
// Created by MacOS on 2018/10/15.
// Copyright © 2018年 Swift-Beginners. All rights reserved.
//
import UIKit
class ViewController: UIViewController,UISearchBarDelegate {
override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. searchText.delegate = self searchText.placeholder = "お菓子の名前を入力して下さい" } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. } @IBOutlet weak var searchText: UISearchBar! @IBOutlet weak var tableView: UITableView! var okashiList : [(maker:String , name:String , link:URL , image:URL)] = [] func searchBarSearchButtonClicked(_ searchBar: UISearchBar){ view.endEditing(true) if let searchWord = searchBar.text{ print(searchWord) searchOkashi(keyWord: searchWord) } } struct ItemJson: Codable{ let name: String? let maker: String? let url: URL? } struct ResultJson: Codable{ let item:[ItemJson] } func searchOkashi(keyWord : String) { guard let keyword_encode = keyWord.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed) else { return } guard let req_url = URL(string: "http://www.sysbird.jp/toriko/api/?apikey=guest&format=json&keyword=(keyword_encode)&max=10&order=r")else{return} print(req_url) let req = URLRequest(url: req_url) let session = URLSession(configuration: .default, delegate: nil, delegateQueue: OperationQueue.main) let task = session.dataTask(with: req, completionHandler: { (data, response, error) in session.finishTasksAndInvalidate() do { let decoder = JSONDecoder() let json = try decoder.decode(ResultJson.self, from: data!) **if let items = json.item {** for item in items { if let maker = item.maker , let name = item.name , let link = item.url , let image = item.image { let okashi = (maker,name,link,image) self.okashiList.append(okashi) } } if let okashidbg = self.okashiList.first { print("-------------") print("okashiList[0] = (okashidbg)") } } } catch { print("エラーが出ました") } }) task.resume() }
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