好久沒有更新簡(jiǎn)書啦瓮恭，最近沉迷于加班，無(wú)法自拔厘熟，現(xiàn)在程序媛上線了~

一屯蹦、背景

前幾天有個(gè)需求，需要用戶點(diǎn)擊一個(gè)開啟日歷的按鈕绳姨，然后將當(dāng)前的事件和系統(tǒng)日歷綁定登澜，并且在連續(xù)的幾天的中午12點(diǎn)給用戶提醒消息，OK飘庄，廢話不多說脑蠕，上代碼

二、實(shí)現(xiàn)方式

1跪削、首先在info.plist文件中添加權(quán)限

Privacy - Calendars Usage Description 訪問日歷的權(quán)限
Privacy - Reminders Usage Description 訪問提醒事件的權(quán)限

2空郊、判斷是否有權(quán)限

class EventCalendar: NSObject {
    //單例
    static let eventStore = EKEventStore()
    
    ///用戶是否授權(quán)使用日歷
    func isEventStatus() -> Bool {
        let eventStatus = EKEventStore.authorizationStatus(for: EKEntityType.event)
        if eventStatus == .denied || eventStatus == .restricted {
            return false
        }
        return true
    }
}

EventCalendar.eventStore.requestAccess(to: EKEntityType.event) { [unowned self] (granted, error) in
//用戶沒授權(quán)
                if !granted {
                    let alertViewController = UIAlertController(title: "提示", message: "請(qǐng)?jiān)趇Phone的\"設(shè)置->隱私->日歷\"選項(xiàng)中,允許***訪問你的日歷份招。", preferredStyle: .alert)
                    let actionCancel = UIAlertAction(title: "取消", style: .cancel, handler: { (action) in
                    })
                    let actinSure = UIAlertAction(title: "設(shè)置", style: .default, handler: { (action) in
                        //跳轉(zhuǎn)到系統(tǒng)設(shè)置主頁(yè)
                        if let url = URL(string: UIApplicationOpenSettingsURLString) {
                            //根據(jù)iOS系統(tǒng)版本，分別處理
                            if #available(iOS 10, *) {
                                UIApplication.shared.open(url)
                            } else {
                                UIApplication.shared.openURL(url)
                            }
                        }
                    })
                    alertViewController.addAction(actionCancel)
                    alertViewController.addAction(actinSure)
                    self.present(alertViewController, animated: true, completion: nil)
                    return
                }
}

3狞甚、獲取第二天中午12點(diǎn)的date

func getTomorrowDate(_ timeCount: Int, dayCount: Int) -> Date {
        let calendar = NSCalendar.current
        var componts = calendar.dateComponents([.weekday, .year, .month, .day], from: Date())
        guard let day = componts.day else {
            return Date()
        }
        componts.day = day + dayCount
        let tomorrowInterval: TimeInterval = TimeInterval((calendar.date(from: componts)?.timeIntervalSince1970 ?? 0) + TimeInterval(timeCount * 60 * 60))
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
        let tomorrowDate = Date(timeIntervalSince1970: tomorrowInterval)
        return tomorrowDate
    }

最后附上Demo