我收到以下JSON的回复，我想获取点击对象的id
{
"totalHits":500,
"hits":[
{
"largeImageURL":"https://pixabay.com/get/ea32b90a2af3073ed1584d05fb1d4190e070e4d71aac104491f1c270a0eeb7b0_1280.jpg",
"webformatHeight":426,
"webformatWidth":640,
"likes":0,
"imageWidth":4494,
"id":3785276,
"user_id":10546560,
"views":21,
"comments":0,
"pageURL":"https://pixabay.com/en/port-river-liner-sea-cruise-3785276/",
"imageHeight":2996,
"webformatURL":"https://pixabay.com/get/ea32b90a2af3073ed1584d05fb1d4190e070e4d71aac104491f1c270a0eeb7b0_640.jpg",
"type":"photo",
"previewHeight":99,
"tags":"port, river, liner",
"downloads":9,
"user":"LunevAndrey",
"favorites":0,
"imageSize":3306757,
"previewWidth":150,
"userImageURL":"",
"previewURL":"https://cdn.pixabay.com/photo/2018/10/31/06/55/port-3785276_150.jpg"
}
]
}
这是我到目前为止所拥有的，
import UIKit
import SDWebImage
class Model: NSObject {
var title : Any!
init (dict : [String:Any]) {
self.title = (((dict as AnyObject)["hits"] as! [String:AnyObject])) ["id"] as? Any
}
}
在视图控制器中，我的编码如下。
import UIKit
import Alamofire
class CollectionView: UIViewController,UICollectionViewDelegate,UICollectionViewDataSource,UICollectionViewDelegateFlowLayout {
let url1 = ["URL path string"]
@IBOutlet weak var collection: UICollectionView!
var arrList = [Model]()
override func viewDidLoad() {
super.viewDidLoad()
reequest()
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(true)
self.collection.reloadData()
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return arrList.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell: firstCollectionViewCell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! firstCollectionViewCell
let objct = arrList[indexPath.row]
cell.label.text = objct.title as AnyObject as? String
return cell
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
let width = (self.view.frame.size.width - 5 * 3 ) / 2 //some width
let height = width * 1.34 //ratio
return CGSize(width: width, height: height)
}
func reequest() {
let url = URL(string: "URL path string")
Alamofire.request(url!).responseJSON {(response) in
switch (response.result){
case .success:
if let data = response.result.value{
if let arrdata = data as? [[String:Any]]{
for dataList in arrdata {
print(dataList)
let obj = Model(dict: dataList)
self.arrList.append(obj)
self.collection.reloadData()
}
}
}
case .failure(let error):
print("error to print the data \(error)")
}
}
}
}
答案 0 :(得分：1)
Codable's易于使用，在这种情况下应该是最好的选择。下面是根据响应对模型的完整重写，
class HitItem: Codable {
var id : Int
var user: String
}
class HitsResponse: Codable {
var totalHits: Int
var hits: [HitItem]
}
class CollectionView: UIViewController,UICollectionViewDelegate,UICollectionViewDataSource,UICollectionViewDelegateFlowLayout {
let url1 = ["URL path string"]
@IBOutlet weak var collection: UICollectionView!
var arrList = [HitItem]()
override func viewDidLoad() {
super.viewDidLoad()
reequest()
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(true)
self.collection.reloadData()
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return arrList.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell: firstCollectionViewCell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! firstCollectionViewCell
let objct = arrList[indexPath.row]
cell.label.text = String(objct.id)
return cell
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
let width = (self.view.frame.size.width - 5 * 3 ) / 2 //some width
let height = width * 1.34 //ratio
return CGSize(width: width, height: height)
}
func reequest() {
let url = URL(string: "URL path string")
Alamofire.request(url!).responseJSON {(response) in
switch (response.result){
case .success:
if let data = response.data {
do {
let response = try JSONDecoder().decode(HitsResponse.self, from: data)
self.arrList = response.hits
self.collection.reloadData()
} catch {
print(error.localizedDescription)
}
}
case .failure(let error):
print("error to print the data \(error)")
}
}
}
}
答案 1 :(得分：0)
尝试做这样的事情。
case .success:
if let data = response.result.value{
if let arrdata = data as? [[String:Any]]{
for dataList in arrdata {
print(dataList)
let obj = Model(dict: dataList)
self.arrList.append(obj)
self.collection.reloadData()
}
for index in 0..<arrdata.count {
print(arrdata[index]["id"])
}
}
}