UICellAccessory

gistfile1.txt

import UIKit

struct WeatherInfo{
    let title: String
    let subTitle: String
    let iconName: String
    let description: String
}

class ViewController: UIViewController {

    private var weatherCollectionView: UICollectionView? = nil

    override func viewDidLoad() {
        super.viewDidLoad()

        let listConfiguration = UICollectionLayoutListConfiguration(appearance: .insetGrouped)
        let simpleLayout = UICollectionViewCompositionalLayout.list(using: listConfiguration)

        let collectionView = UICollectionView(frame: view.bounds, collectionViewLayout: simpleLayout)
        collectionView.register(UICollectionViewListCell.self, forCellWithReuseIdentifier: "cell")
        collectionView.dataSource = self
        view.addSubview(collectionView)

        weatherCollectionView = collectionView

    }

    private var sampleData: [WeatherInfo]{

        let a = WeatherInfo(
            title: "横浜",
            subTitle: "神奈川",
            iconName: "sun.max",
            description: "きょうの関東地方は、冬型の気圧配置と強い寒気の影響で、平野部を中心に晴れるでしょう。北部の山沿いや山間部では雪が降る見込みです。")
        let b = WeatherInfo(
            title: "松本",
            subTitle: "長野",
            iconName: "cloud.rain",
            description: "長野県は、曇りや晴れで、雪の降っている所があります。")
        let c = WeatherInfo(
            title: "仙台",
            subTitle: "宮城",
            iconName: "cloud",
            description: "低気圧が日本海にあって、ゆっくり北東へ進んでいます。また、別の低気圧が三陸沖にあって北東へ進んでいます。")
        let d = WeatherInfo(
            title: "旭川",
            subTitle: "北海道",
            iconName: "snowflake",
            description: "北海道付近は、発達した低気圧が日本海に停滞するでしょう。")
        let e = WeatherInfo(
            title: "高松",
            subTitle: "香川",
            iconName: "cloud.sun",
            description: "香川県は、高気圧に覆われて晴れていますが、西部では寒気や湿った空気の影響で概ね曇りとなり、雨や雪の降っている所があります。")

        return [a,b,c,d,e]
    }

}

extension ViewController: UICollectionViewDataSource {

    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return sampleData.count
    }

    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! UICollectionViewListCell

        let info = sampleData[indexPath.row]

        var cellConfiguration = cell.defaultContentConfiguration()
        cellConfiguration.text = info.title
        cellConfiguration.secondaryText = info.subTitle
        cellConfiguration.image = UIImage(systemName: info.iconName)
        cell.contentConfiguration = cellConfiguration

        // UICellAccessory
        let customAccessory1 = UICellAccessory.CustomViewConfiguration(
          customView: UIImageView(image: UIImage(systemName: "bandage")),
          placement: .leading(displayed: .always))
        let customAccessory2 = UICellAccessory.CustomViewConfiguration(
          customView: UIImageView(image: UIImage(systemName: "tray")),
          placement: .leading(displayed: .always))
        let customAccessory3 = UICellAccessory.CustomViewConfiguration(
          customView: UIImageView(image: UIImage(systemName: "bicycle")),
          placement: .trailing(displayed: .always))

        cell.accessories = [.customView(configuration: customAccessory1),
                            .customView(configuration: customAccessory2),
                            .customView(configuration: customAccessory3),
                            .checkmark()]

        return cell
    }

}