Qfyilyi

I'm facing two problems. I want to create an array of UILabel.
I tried:

private var weekdayLabels = [DayLabel](repeating: DayLabel(), count: 7),
but it uses the same instance of DayLabel().

I ended up using this other, much uglier solution:

(0...6).forEach { _ in

        weekdayLabels.append(DayLabel())

}

Is there a way I can make [DayLabel](repeating: DayLabel(), count: 7) work?

The second problem comes while mapping an array of String with the weekday names to my array of [UILabel] :

weekdayLabels.enumerated().forEach {

        $0.element.text = weekdayNames[$0.offset]

}

I believe there must be a better way to map the String to the UILabel().text. Am I right?

1. Array(repeating:count:) really means repeating. The expression for the repeating argument is only evaluated once. Use (0..<count).map instead.




2. Ue zip to pair each label to the corresponding string.

The code:

weekDayLabels = (0..<7).map { _ in DayLabel() }



let weekDayNames = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]

zip(weekDayLabels, weekDayNames).forEach { label, dayName in

    label.text = dayName

}

Have you tried declaring your weekdayLabels array as a private lazy var?

I've had problems in the past with declaring arrays of other UIKit objects (assuming because they may or may not have been instantiated yet by the storyboard) and had to resort to the following to access the state of a ToggleButton (a custom, toggle-able UIButton implementation) in an optional array of buttons:

lazy var buttonsArray = {

    [buttonOne, buttonTwo, buttonThree]

}()



...



if buttonsArray[index]?.isOn == true {

        buttonsArray[index]?.buttonPressed()

}