如何以编程方式将不同单元格的不同图像添加到tableView（Swift）

Question

I want to add different images to different cell in a tableView where i have already a list of string, this is my code, the struct of category:

  struct QCategoryy {
        var name:String
        var image:UIImage
        var isSelected = false
        init(name:String, image.UIImage) {
            self.name = name
            self.image = image
}


    extension QCategoryy: ExpressibleByStringLiteral {
        init(stringLiteral value: String) {
            self.name = value
        }
        init(unicodeScalarLiteral value: String) {
            self.init(name: value)
        }
        init(extendedGraphemeClusterLiteral value: String) {
            self.init(name: value)
        }
    }

and here is where i create the list (which i will then add to the tableView)

import Foundation
import UIKit
import CoreLocation
import Alamofire

class NearbyPlaces {
    static func getCategories() -> [QCategoryy] {
        let list:[QCategoryy] = ["Art_gallery", "Amusement_park", "Zoo", "Bar", "Night_club", "Movie_theater", "Restaurant", "Shopping_mall", "Atm", "Gym", "Store", "Spa", "Museum", "Stadium", "Hardware_store", "Casino", "Library", "Painter", "Book_store", "Bowling_alley", "Cafe", "Clothing_store",  ]
        return list
    }

for each item in the list i want to add a specific image of the cell size but how can i do?

EDIT

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let identifier = "CATEGORY_CELL"
        let cell = tableView.dequeueReusableCell(withIdentifier: identifier, for: indexPath)
        let selectedIndexPaths = tableView.indexPathsForSelectedRows
        let rowIsSelected = selectedIndexPaths != nil && selectedIndexPaths!.contains(indexPath)
       /* cell.accessoryType = rowIsSelected ? .checkmark : .none  */
        cell.accessoryType = list[indexPath.row].isSelected ? .checkmark : .none
        cell.textLabel?.text = list[indexPath.row].name
        return cell
    }

Answer 1

The List ist static, right?

Why do you not add an image url (or what u need) to your object. That would solve your problem ^^. So you can call it in cell for row :)

Answer 2

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
 let cell = tableView.dequeueReusableCell(withIdentifier: "your_cell_identifier") 
let category = NearbyPlaces.getCategory()[indexPath.row] 
cell.image = category.image 
cell.name = category.name
return cell!

}

You cant read it in the comments^^

Answer 3

As @TMX said, you can use:

func cellForRow(at indexPath: IndexPath) -> UITableViewCell?

See: https://developer.apple.com/documentation/uikit/uitableview/1614983-cellforrow

And: https://stackoverflow.com/a/8079765/7510062

And if you just started to code, you should follow this tutorial: https://developer.apple.com/library/content/referencelibrary/GettingStarted/DevelopiOSAppsSwift/CreateATableView.html

..in order to understand how it works, then it should be EASY!

Answer 4

It would be better if you can create custom cells. rather with your same code you just below line in CellForRowAtIndex method.

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
            let identifier = "CATEGORY_CELL"
            let cell = tableView.dequeueReusableCell(withIdentifier: identifier, for: indexPath)
            let selectedIndexPaths = tableView.indexPathsForSelectedRows
            let rowIsSelected = selectedIndexPaths != nil && selectedIndexPaths!.contains(indexPath)

            cell.accessoryType = list[indexPath.row].isSelected ? .checkmark : .none
            cell.textLabel?.text = list[indexPath.row].name
            cell.imageView?.image = list[indexPath.row].image // make sure you are saving images in struct.
            return cell
        }

initalize as

init(name:String, image:UIImage) {
            self.name = name
            self.image = image
        }

change func as

static func getCategories() -> [QCategoryy] {
        let list:[QCategoryy] = [QCategoryy(name: "name", image: UIImage(named: "imageName")!)]
        return list
    }

extension code:

extension QCategoryy: ExpressibleByStringLiteral {
     init(stringLiteral value: String) {
            self.name = value
            self.image = UIImage()
        }
        init(unicodeScalarLiteral value: String) {
            self.init(name: value, image: UIImage())
        }
        init(extendedGraphemeClusterLiteral value: String) {
            self.init(name: value, image: UIImage())
        }
    }