阿超 > iOS开发之创建日历提醒

iOS开发之创建日历提醒

2025-01-13

ios

一个没有实现的愿望所带来的痛苦，远远小于因后悔遗憾而带来的痛苦。因为前者面对的是无限广阔的开放未来，后者却是无法挽回的过去。——叔本华

首先是XCode创建一个新的项目

然后是修改ContentView文件，代码如下：

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//
//  ContentView.swift
//  backmoney
//
//  Created by 阿超 on 2025/1/13.
//

import SwiftUI
import EventKit

struct ContentView: View {
    @State private var showAlert = false
    @State private var alertMessage = ""
    let eventStore = EKEventStore()

    var body: some View {
        VStack {
            Image(systemName: "globe")
                .imageScale(.large)
                .foregroundStyle(.tint)
            Text("Hello, world!")

            // 添加一个按钮
            Button(action: {
                // 请求访问权限并创建事件
                requestAccessToCalendar { granted in
                    if granted {
                        createCalendarEvent()
                    } else {
                        showAlert = true
                        alertMessage = "没有权限访问日历"
                    }
                }
            }) {
                Text("创建日历提醒")
                    .font(.title2)
                    .padding()
                    .foregroundColor(.white)
                    .background(Color.blue)
                    .cornerRadius(8)
            }
        }
        .padding()
        .alert(isPresented: $showAlert) {
            Alert(title: Text("提示"), message: Text(alertMessage), dismissButton: .default(Text("确定")))
        }
    }

    // 请求访问权限
    func requestAccessToCalendar(completion: @escaping (Bool) -> Void) {
        eventStore.requestAccess(to: .event) { granted, error in
            if let error = error {
                print("请求访问日历时出错：\(error.localizedDescription)")
                completion(false)
            }
            completion(granted)
        }
    }

    // 创建日历事件
    func createCalendarEvent() {
        let event = EKEvent(eventStore: eventStore)
        event.title = "测试事件"
        event.startDate = Date().addingTimeInterval(3600) // 一小时后
        event.endDate = event.startDate.addingTimeInterval(3600) // 持续一小时
        event.calendar = eventStore.defaultCalendarForNewEvents

        do {
            try eventStore.save(event, span: .thisEvent)
            showAlert = true
            alertMessage = "事件创建成功！"
        } catch {
            showAlert = true
            alertMessage = "事件创建失败：\(error.localizedDescription)"
        }
    }
}

#Preview {
    ContentView()
}