CODEWITHSUNDEEP
iosswift
S.Verma
S.Verma

Reputation: 199

Why do I get error while passing value using prepareForSegue?

I'm trying to send the value of datePicker from one VC to another using prepareForSegue why do I get an error saying "found nil while unwrapping optional value" here is my code of Sending Class:

var dateSender: Date!

@IBAction func sendDate(_ sender: UIDatePicker) {

    dateSender=datePicker.date

}

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    var DateViewController: Viola=segue.destination as! Viola

    DateViewController.HereDate=dateSender

}

the code of receiving class:

var HereDate: Date?
weak var reminder: Reminder?

@IBAction func `switch2`(_ sender: BEMCheckBox) {

        let name = "hello"
        var time1 = HereDate
        let timeInterval = floor((time1?.timeIntervalSinceReferenceDate)!/60)*60
        time1 = Date(timeIntervalSinceReferenceDate: timeInterval)
        let notification = UILocalNotification()
        notification.alertTitle = "Reminder"
        notification.alertBody = "You need to \(name)!"
        notification.fireDate = HereDate
        notification.soundName = UILocalNotificationDefaultSoundName

        UIApplication.shared.scheduleLocalNotification(notification)

        reminder = Reminder(name: name, time: time1!, notification: notification)

    }

Upvotes: 0

Views: 41

Answers (2)

Hapeki
Hapeki

Reputation: 2193

I made a demo project to demonstrate how to pass a date with a segue. Clone my project:

https://github.com/Hapeki/Example1

Notice the segue identifier in the storyboard.

Upvotes: 1

DonMag
DonMag

Reputation: 77690

I assume you have both an IBAction and a segue connected to your date picker?

Remove your @IBAction func sendDate() function (and disconnect it from the date picker).

In prepare(for segue:), simply do:

    DateViewController.HereDate = datePicker.date

Upvotes: 0

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