如何以编程方式将图像添加到现有tableView的单元格中? [英] How to add images [programmatically] to cells of existing tableView?

问题描述

我需要将图像添加到与tableView单元格相同名称的tableView单元格中.即波音"单元格使用"Boeing.png"图片.有些图像为.jpg格式.

I need to add images to tableView cells of the same names as the tableView cells. i.e. 'Boeing' cell uses 'Boeing.png' image. Some images are of .jpg format.

我尝试以与节和行布局相同的方式添加图像数组.图片与单元格具有相同的名称.我在尝试进行更改的地方添加了注释(#1-4).这应该很简单，但是我看不到我所缺少的.

I have tried adding an array of images in the same manner as the section and row layout. The pictures have the same names as the cells. I have added comments(#1-4) to where I have tried to make changes. This should be rather simple, but I cannot see what I am missing.

import UIKit

class NewTableViewController: UITableViewController {

        let  transportMeans = ["Cars" : ["Ferrari", "Chrysler", "Toyota"], "Trains" : ["Steam", "Diesel", "Electric"], "Planes" : ["AirBus", "Boeing", "Cessna"]]
    // #1 added a line for images to be applied:
        var transportImages =   ["Cars" : ["Ferrari.png", "Chrysler.png","Toyota.png"], "Trains" : ["Steam.png","Diesel.png","Electric.png"], "Planes" : ["AirBus.jpg","Boeing.jpg","Cessna.png"]]
        var selectedFileName = ""

        struct Objects {

            var sectionName : String!
            var sectionObjects : [String]!
    //#2 added a line for images:
            var transportImages : String!
        }

        var objectArray = [Objects]()


        override func viewDidLoad() {
            super.viewDidLoad()
    // #3 added term 'value' to key:

            for (key, value, value) in transportMeans {
                print("\(key) -> \(value) -> \(value)")
    //#4 added a line for 'transportImages' in the append section-------:
                objectArray.append(Objects(sectionName: key, sectionObjects: value, transportImages: value))
            }


        }

我在这段代码中遇到的错误是:

The errors I am getting with this code are:

源文件中的编辑器占位符"，'((键:字符串，值:[字符串])'不能转换为'(_，_，_)'，元组的数目不同..."， 定义与先前的冲突..." @ 线: 、、、 用于运输方式中的(键，值){ 、、

"Editor placeholder in source file", "'(key: String, value: [String])' is not convertible to '(_, _, _)', tuples have a different number of...", "Definition conflicts with previous ..." @ line: ,,, 'for (key, value) in transportMeans {' ,,,

推荐答案

您的transportMeans具有类型:[String : [String]].因此，在for循环中，您应该执行以下操作:

Your transportMeans has type: [String : [String]]. So in the for loop you should do something like this:

    for (key, value) in transportMeans {
        print("\(key) -> \(value) -> \(value)")
        //#4 added a line for 'transportImages' in the append section-------:
        objectArray.append(Objects(sectionName: key, sectionObjects: value, transportImages: key))
    }

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