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iOS Intermediate Swift 2 Properties Property Observers

Marcos Reboucas
Marcos Reboucas
12,890 Points
Posted by Marcos Reboucas
Marcos Reboucas
12,890 Points

What's wrong with this code? Keep getting "Make sure you're setting your view to the correct background color based...."

ERROR: Make sure you're setting your view to the correct background color based on the temperature value

class TemperatureController: UIViewController {

    var temperature: Double
    {
        didSet
        {
            if self.temperature > 80.0
            {
                view.backgroundColor = UIColor.redColor()
            }
            if self.temperature < 40.0
            {
                view.backgroundColor = UIColor.blueColor()
            }
            else
            {
                view.backgroundColor = UIColor.greenColor()
            }
        }
    }

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

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

1 Answer

jcorum
jcorum
71,830 Points

One issue. You need to use if... else if... else:

            if self.temperature > 80.0
            {
                view.backgroundColor = UIColor.redColor()
            }
            else if self.temperature < 40.0  //need else if here in place of if
            {
                view.backgroundColor = UIColor.blueColor()
            }
            else
            {
                view.backgroundColor = UIColor.greenColor()
            }