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iOS Intermediate Swift 2 Properties Property Observers

Make sure you add a property observer to the temperature property

That's not what I've done??

class TemperatureController: UIViewController {
    var temperature: Double

    didSet {
        if temperature >= 80 {
        view.backgroundColor = UIColor.redColor()

       } else if { temperature <= 40 {
       view.backgroundColor = UIColor.blueColor()
        } else {

        view.backgroundColor = UIColor.greenColor()

    init(temperature: Double) {
        self.temperature = temperature

    override func viewDidLoad() {
        view.backgroundColor = UIColor.whiteColor()

2 Answers

Moritz Lang
Moritz Lang
25,909 Points

Hey, just rewatch the video on this topic. Your syntax is wrong and I think it would be the best for you to understand this topic. (no offence) :)

thks Moritz, you were right, too much computing my brain goes marshmallow!