create if statement based on time - swift

Question

I want my swift code to follow a if statement based on a certain time. My timer is in military time right now. So I want to do something like if the hour in time is 01:00 to 01:59. Then the view background color should turn blue. So I am just trying to control the hour time in the time style.
import UIKit
class ViewController: UIViewController {
var box = UILabel()
#objc func tick() {
box.text = DateFormatter.localizedString(from: Date(), dateStyle: .none, timeStyle: .short)
}
var timer = Timer()
var currentDateTime = Date()
lazy var dateFormatter: DateFormatter = {
let formatter = DateFormatter()
formatter.dateFormat = "hh:mm" // or "hh:mm a" if you need to have am or pm symbols
return formatter
}()
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(true)
dateFormatter.timeStyle = .medium
box.text = "\(dateFormatter.string(from: currentDateTime))"
}
override func viewDidLoad() {
super.viewDidLoad()
box.text = DateFormatter.localizedString(from: Date(), dateStyle: .none, timeStyle: .short)
timer = Timer.scheduledTimer(timeInterval: 1.0, target: self, selector:#selector(self.tick) , userInfo: nil, repeats: true)
box.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(box)
box.backgroundColor = .red
NSLayoutConstraint.activate([
box.widthAnchor.constraint(equalTo: view.widthAnchor, multiplier: 0.5),
box.heightAnchor.constraint(equalTo: view.heightAnchor, multiplier: 0.5),
box.centerXAnchor.constraint(equalTo: view.centerXAnchor),
box.centerYAnchor.constraint(equalTo: view.centerYAnchor),
])
}
}

Answer 1

If I understand exactly what you want to do, this code should help you:
...
var box = UILabel()
#objc func tick() {
box.text = DateFormatter.localizedString(from: Date(), dateStyle: .none, timeStyle: .short)
let minutesNow = getMinutesFromDate(date: Date())
if minutesNow >= 60 && minutesNow < 120 {
box.backgroundColor = .blue
}
else {
box.backgroundColor = .red
}
}
func getMinutesFromDate(date: Date) -> Int {
let dateComponents = Calendar.current.dateComponents([.hour, .minute], from: date)
let minutes = ((dateComponents.hour ?? 0) * 60) + (dateComponents.minute ?? 0)
return minutes
}
...