Question

我是iOS技术的新手。我正在尝试使用UILocalNotification使用swift 2.0构建一个警报应用程序。当我点击按钮时，我从UIPickerView获取时间和日期。我也想显示通知和播放声音。但声音和通知都不起作用。请帮帮我！

@IBOutlet weak var myPickerView: UIDatePicker!

override func viewDidLoad() {
    super.viewDidLoad()
    myPickerView.date = NSDate()
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}


@IBAction func setAlarmClicked(sender: UIButton) {
    let dateFormater : NSDateFormatter = NSDateFormatter()
    dateFormater.timeZone = NSTimeZone.defaultTimeZone()
    dateFormater.timeStyle = .ShortStyle
    dateFormater.dateStyle = .ShortStyle

    let dateTimeString : NSString = dateFormater.stringFromDate(myPickerView.date)
    print("date is \(dateTimeString)")

    self.sheduleLocalNotificationWithDate(myPickerView.date)
}

@IBAction func cancelAlarmClicked(sender: UIButton) {

}

func sheduleLocalNotificationWithDate(fireDate : NSDate){
    let localNotification : UILocalNotification = UILocalNotification()
    localNotification.fireDate = fireDate
    localNotification.alertBody = "Alert !!!!"
    localNotification.soundName = "minion.mp3"

    UIApplication.sharedApplication().scheduleLocalNotification(localNotification)

}

Answer 1

您必须注册本地通知。将其添加到视图控制器：

override func viewDidAppear() {

    super.viewDidAppear()
    let settings = UIUserNotificationSettings(forTypes: [.Badge, .Sound, .Alert], categories: nil)
    UIApplication.sharedApplication().registerUserNotificationSettings(settings)

}

首次显示您的视图时会出现提示，点击“确定”并且您的通知应该有效。请记住，用户始终可以禁用通知。

scheduleLocalNotification在Swift 2.0中不起作用

1 个答案: