我正在将 API 中的数据解析到 Collection View 中，其中有一个名为 count 的字段。我不想显示 count 为 0 的数据，并且希望其他 Collection View 单元格相应地重新排列。
Assets 文件夹的屏幕截图:
我的结果截图
到目前为止，这是我的代码:
import UIKit
class CategoryViewController: UIViewController {
//MARK: IBOutlets
@IBOutlet weak var store_bar: UIViewX!
@IBOutlet weak var store_title: UIButton!
@IBOutlet weak var category_title: UIButton!
@IBOutlet weak var category_bar: UIViewX!
@IBOutlet weak var categoryColView: UICollectionView!
var selectedBtnIndex:Int = 1
var categoryData = [ModelCategories]()
var storeData = [ModelStore]()
override func viewDidLoad() {
super.viewDidLoad()
// register collectionview cell
self.categoryColView.register(UINib(nibName: "CategoryCell1", bundle: nil), forCellWithReuseIdentifier: "CategoryCell1")
self.categoryColView.register(UINib(nibName: "StoresCell", bundle: nil), forCellWithReuseIdentifier: "StoresCell")
self.store_bar.isHidden = true
self.getCategoriesList()
self.getStoreList()
}
override var preferredStatusBarStyle: UIStatusBarStyle {
return .lightContent
}
@objc func click_Category(sender: UIButton!) {
UIView.animate(withDuration: 1.0) {
sender.isSelected = !sender.isSelected
}
}
@objc func click_store(sender: UIButton!) {
UIView.animate(withDuration: 1.0) {
sender.isSelected = !sender.isSelected
}
}
//MARK: IBActions
@IBAction func categoriesData(_ sender: UIButton) {
selectedBtnIndex = 1
self.categoryColView.isHidden = false
self.store_bar.isHidden = true
self.category_title.setTitleColor(UIColor.black, for: .normal)
self.category_bar.isHidden = false
self.store_title.setTitleColor(UIColor(rgb: 0xAAAAAA), for: .normal)
self.categoryColView.reloadData()
}
@IBAction func storeData(_ sender: UIButton) {
selectedBtnIndex = 2
self.categoryColView.isHidden = false
self.store_bar.isHidden = false
self.store_title.setTitleColor(UIColor.black, for: .normal)
self.category_bar.isHidden = true
self.category_title.setTitleColor(UIColor(rgb: 0xAAAAAA), for: .normal)
self.categoryColView.reloadData()
}
@IBAction func showHomeScreen(_ sender: UIButton) {
let vc = self.storyboard?.instantiateViewController(withIdentifier: "HomeViewController") as! HomeViewController
self.navigationController?.pushViewController(vc, animated:true)
}
@IBAction func toSearchPage(_ sender: UIButton) {
let vc = self.storyboard?.instantiateViewController(withIdentifier: "SearchPageController") as! SearchPageController
self.navigationController?.pushViewController(vc, animated:true)
}
func getCategoriesList() {
if ApiUtillity.sharedInstance.isReachable() {
ApiUtillity.sharedInstance.StartProgress(view: self.view)
APIClient<ModelBaseCategoryList>().API_GET(Url: SD_GET_CategoriesList, Params: [:], Authentication: true, Progress: true, Alert: true, Offline: false, SuperVC: self, completionSuccess: { (modelResponse) in
ApiUtillity.sharedInstance.StopProgress(view: self.view)
if(modelResponse.success == true) {
self.categoryData.removeAll()
let resul_array_tmp_new = modelResponse.categories! as NSArray
if resul_array_tmp_new.count > 0 {
for i in modelResponse.categories! {
self.categoryData.append(i)
}
}
}
else {
self.view.makeToast(modelResponse.message)
}
ApiUtillity.sharedInstance.StopProgress(view: self.view)
self.categoryColView.reloadData()
}) { (failed) in
ApiUtillity.sharedInstance.StopProgress(view: self.view)
self.view.makeToast(failed.localizedDescription)
}
}
else
{
self.view.makeToast("No Internet Connection..")
}
}
func getStoreList() {
if ApiUtillity.sharedInstance.isReachable() {
ApiUtillity.sharedInstance.StartProgress(view: self.view)
APIClient<ModelBaseStoreList>().API_GET(Url: SD_GET_StoreList, Params: [:], Authentication: true, Progress: true, Alert: true, Offline: false, SuperVC: self, completionSuccess: { (modelResponse) in
ApiUtillity.sharedInstance.StopProgress(view: self.view)
if(modelResponse.success == true) {
self.storeData.removeAll()
let resul_array_tmp_new = modelResponse.store! as NSArray
if resul_array_tmp_new.count > 0 {
for i in modelResponse.store! {
self.storeData.append(i)
}
}
}
else {
self.view.makeToast(modelResponse.message)
}
ApiUtillity.sharedInstance.StopProgress(view: self.view)
self.categoryColView.reloadData()
}) { (failed) in
ApiUtillity.sharedInstance.StopProgress(view: self.view)
self.view.makeToast(failed.localizedDescription)
}
}
else
{
self.view.makeToast("No Internet Connection..")
}
}
}
//MARK: Delegate and Data Source Methods
extension CategoryViewController: UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
if selectedBtnIndex == 1{
return categoryData.count
}else {
return storeData.count
}
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
if selectedBtnIndex == 1{
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "CategoryCell1", for: indexPath) as! CategoryCell1
let dict = categoryData[indexPath.row]
if let catName = dict.name, catName.count != 0 {
cell.categoryName.text = catName
}
if let catOffersCount = dict.count {
if catOffersCount <= 1 {
cell.catOfferCount.text = "\(catOffersCount)"+" "+"Offer"
cell.categoryImage.image = UIImage(named: "tickets")
}else {
cell.catOfferCount.text = "\(catOffersCount)"+" "+"Offers"
}
}
if dict.slug == "mens" {
cell.categoryImage.image = UIImage(named: "MENS")
} else if dict.slug == "electronics" {
cell.categoryImage.image = UIImage(named: "ELECTRONICS")
}else if dict.slug == "beauty" {
cell.categoryImage.image = UIImage(named: "BEAUTY")
}else if dict.slug == "fashion" {
cell.categoryImage.image = UIImage(named: "FASHION")
}else if dict.slug == "kids-clothing" {
cell.categoryImage.image = UIImage(named: "KIDS FASHION")
}else if dict.slug == "travel" {
cell.categoryImage.image = UIImage(named: "TRAVEL")
}else if dict.slug == "womens-apparels" {
cell.categoryImage.image = UIImage(named: "WOMENS APPARELS")
}else if dict.slug == "eyewear" {
cell.categoryImage.image = UIImage(named: "EYEWEAR")
}else {
cell.categoryImage.image = UIImage(named: "tickets")
}
cell.btn_click.tag = indexPath.row
cell.btn_click.setImage(#imageLiteral(resourceName: "image_unchecked"), for: .normal)
cell.btn_click.setImage(#imageLiteral(resourceName: "image_checked"), for: .selected)
cell.btn_click.addTarget(self, action: #selector(self.click_Category), for: .touchUpInside)
return cell
}else {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "StoresCell", for: indexPath) as! StoresCell
let dict = storeData[indexPath.row]
if let storeName = dict.name, storeName.count != 0 {
cell.storeName.text = storeName
}
if let storeOfferCount = dict.count {
cell.storeOfferCount.text = "\(storeOfferCount)"+" "+"Offers"
}
cell.store_btn_click.tag = indexPath.row
cell.store_btn_click.setImage(#imageLiteral(resourceName: "image_unchecked"), for: .normal)
cell.store_btn_click.setImage(#imageLiteral(resourceName: "image_checked"), for: .selected)
cell.store_btn_click.addTarget(self, action: #selector(self.click_store), for: .touchUpInside)
return cell
}
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
if selectedBtnIndex == 1{
return CGSize(width: (UIScreen.main.bounds.width) / 3, height: 93)
}else {
return CGSize(width: (UIScreen.main.bounds.width) / 3, height: 93)
}
}
最佳答案
我认为你应该在这样的响应方法中添加一个条件，以消除 count 属性等于 0 的数据。
if resul_array_tmp_new.count > 0 {
for i in modelResponse.store! {
if i.count != 0 {
self.storeData.append(i)
}
}
}
类别列表相同。
if resul_array_tmp_new.count > 0 {
for i in modelResponse.categories! {
if i.count != 0 {
self.categoryData.append(i)
}
}
}
关于ios - 如果计数等于 0，如何将显示数据从 API 跳过到 Collection View 单元格，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56636022/