![](/img/trans.png)
[英]How to add different images for different cell to a tableView programmatically (Swift 3)
[英]How to add different images for different cell to a tableView programmatically (Swift)
我想将不同的图像添加到tableView的不同单元格中,其中我已经有一个字符串列表,这是我的代码,类别的结构:
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)
}
}
这是我创建列表的地方(然后将其添加到tableView中)
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
}
对于列表中的每个项目,我想添加单元格大小的特定图像,但是我该怎么办?
编辑
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
}
List ist静态的,对吗?
为什么不将图像网址(或您需要的内容)添加到对象。 那会解决你的问题^^。 因此,您可以在单元格中将其称为:)
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!
}
您无法在评论中阅读它^^
正如@TMX所说,您可以使用:
func cellForRow(at indexPath: IndexPath) -> UITableViewCell?
参见: https : //developer.apple.com/documentation/uikit/uitableview/1614983-cellforrow
和: https : //stackoverflow.com/a/8079765/7510062
而且,如果您刚刚开始编写代码,则应遵循以下教程: https : //developer.apple.com/library/content/referencelibrary/GettingStarted/DevelopiOSAppsSwift/CreateATableView.html
..为了了解它是如何工作的,那应该很容易!
如果可以创建自定义单元,那就更好了。 而不是使用相同的代码,只在CellForRowAtIndex方法的行下面。
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
}
初始化为
init(name:String, image:UIImage) {
self.name = name
self.image = image
}
将func更改为
static func getCategories() -> [QCategoryy] {
let list:[QCategoryy] = [QCategoryy(name: "name", image: UIImage(named: "imageName")!)]
return list
}
扩展代码:
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())
}
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.