ios – 是否可以刷新Today Widget中的计时器？

解决方法

@H_404_6@ 是的你可以.我刚刚测试过它的确有效.您只需将计时器添加到主运行循环NSRunLoopCommonModes：

RunLoop.main.add(yourTimerName,forMode: .commonModes)

import NotificationCenter

class TodayViewController: UIViewController,NCWidgetProviding {

    @IBOutlet weak var strTimer: UILabel!

    var timer = Timer()

    func updateInfo() {
        strTimer.text = Date().description
    }
    override func viewDidLoad() {
        super.viewDidLoad()
        timer = Timer.scheduledTimer(timeInterval: 1,target: self,SELEctor: #SELEctor(updateInfo),userInfo: nil,repeats: truE)
        RunLoop.main.add(timer,forMode: .commonModes)
    }
    func widgetPerformupdate(completionHandler: @escaping (NCupdateResult) -> Void) {
        completionHandler(.newData)
    }
}