Swift FSCalendar在日历中选择日期在表视图中显示事件

pod 'FSCalendar'

import UIKit
import FSCalendar

class CalendarViewController: UIViewController, FSCalendarDelegate, UITableViewDataSource, UITableViewDelegate {
    
    var calendar: FSCalendar!
    var tableView: UITableView!
    var events: [Date: [String]] = [:]
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 初始化 FSCalendar
        calendar = FSCalendar(frame: CGRect(x: 0, y: 100, width: view.bounds.width, height: 300))
        calendar.delegate = self
        view.addSubview(calendar)
        
        // 初始化 UITableView
        tableView = UITableView(frame: CGRect(x: 0, y: calendar.frame.maxY + 10, width: view.bounds.width, height: view.bounds.height - calendar.frame.maxY - 10))
        tableView.dataSource = self
        tableView.delegate = self
        view.addSubview(tableView)
    }
    
    // FSCalendarDelegate 方法
    func calendar(_ calendar: FSCalendar, didSelect date: Date, at monthPosition: FSCalendarMonthPosition) {
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "yyyy-MM-dd"
        let dateString = dateFormatter.string(from: date)
        print("Selected date: \(dateString)")
        
        // 假设这里有一些逻辑来获取事件数据
        let eventNames = getEvents(for: date)
        events[date] = eventNames
        
        // 刷新 UITableView
        tableView.reloadData()
    }
    
    // 获取事件数据的示例方法
    func getEvents(for date: Date) -> [String] {
        // 这里可以是从数据库或网络获取事件的逻辑
        return ["Meeting", "Doctor Appointment"]
    }
    
    // UITableViewDataSource 方法
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        let today = Date()
        return events[today]?.count ?? 0
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "EventCell", for: indexPath)
        let today = Date()
        if let eventNames = events[today], indexPath.row < eventNames.count {
            cell.textLabel?.text = eventNames[indexPath.row]
        }
        return cell
    }
}