我的项目包含collectionView ..但是如何基于json id从didSelectItemAt推送不同的viewcontroller。而且我为每个id具有单独的vewcontrollers。但是我无法使用基于json id的didSelectItemAt推送不同的viewcontrolls。
这是我的Json for collectionView:
{
"financer": [
{
"id": "45",
"icon": "https://hello.com//images/img1.png"
}
{
"id": "40",
"icon": "https://hello.com//images/img2.png"
}
.
.
.
]
}
这是我的家庭收藏查看代码:
import UIKit
struct JsonData {
var iconHome: String?
init(icon: String, tpe: String) {
self.iconHome = icon
}
}
class HomeViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource {
@IBOutlet weak var collectionView: UICollectionView!
var itemsArray = [JsonData]()
var idArray = [String]()
override func viewDidLoad() {
super.viewDidLoad()
homeServiceCall()
//Do any additional setup after loading the view.
collectionView.delegate = self
collectionView.dataSource = self
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return itemsArray.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! HomeCollectionViewCell
let aData = itemsArray[indexPath.row]
cell.paymentLabel.text = aData.typeName
if let url = NSURL(string: aData.iconHome ?? "") {
if let data = NSData(contentsOf: url as URL) {
cell.paymentImage.image = UIImage(data: data as Data)
}
}
return cell
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let nextViewController = self.storyboard?.instantiateViewController(withIdentifier: "MakePaymentViewController") as! MakePaymentViewController
self.navigationController?.pushViewController(nextViewController, animated: true)
let indexPathHome = indexPath.row
print("home collectionItem indexpath \(indexPathHome)")
}
//MARK:- Service-call
func homeServiceCall(){
let urlStr = "https://dev.com/webservices/getfinancer"
let url = URL(string: urlStr)
URLSession.shared.dataTask(with: url!, completionHandler: {(data, response, error) in
guard let respData = data else {
return
}
do{
let jsonObj = try JSONSerialization.jsonObject(with: respData, options: .allowFragments) as! [String: Any]
let financerArray = jsonObj["financer"] as! [[String: Any]]
for financer in financerArray {
let id = financer["id"] as! String
let pic = financer["icon"] as? String
self.itemsArray.append(JsonData(icon: pic ?? ""))
}
DispatchQueue.main.async {
self.collectionView.reloadData()
}
}
catch {
print("catch error")
}
}).resume()
}
}
当我单击collectionview中的任何项目时,我可以推送相同的视图控制器,但是我需要根据json id推送不同的视图控制器。我不知道如何以及在哪里使用json id来使用didselectItem atIndexPath推送不同的viewcontroller。任何人请在这里帮助我。
更新您的homeServiceCall
功能
func homeServiceCall(){
let urlStr = "https://dev.com/webservices/getfinancer"
let url = URL(string: urlStr)
URLSession.shared.dataTask(with: url!, completionHandler: {(data, response, error) in
guard let respData = data else {
return
}
do{
let jsonObj = try JSONSerialization.jsonObject(with: respData, options: .allowFragments) as! [String: Any]
let financerArray = jsonObj["financer"] as! [[String: Any]]
for financer in financerArray {
let id = financer["id"] as! String
let pic = financer["icon"] as? String
self.itemsArray.append(JsonData(icon: pic ?? ""))
self.idArray.append(id)
}
DispatchQueue.main.async {
self.collectionView.reloadData()
}
}
catch {
print("catch error")
}
}).resume()
}
在financerId
中创建一个名为MakePaymentViewController
的字符串属性
在didSelect
功能中
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
if let nextViewController = self.storyboard?.instantiateViewController(withIdentifier: "MakePaymentViewController") as? MakePaymentViewController {
nextViewController.finacerId = idArray[indexPath.row]
}
self.navigationController?.pushViewController(nextViewController, animated: true)
}