如何在swift 4中以编程方式更改标签颜色

Question

When I change the label color on my display programmatically, but that doesn't really change the color of the label in my simulator

this is my code :

This code works for iOS v13.3, but not for iOS v12.4

lblClockOut.text = "text"

lblClockOut.textColor = UIColor(named: "Green-9920")

is there any other way?

before that I say thank you :)

Answer 1

您是否尝试过在主线程上更新 UI，例如，

DispatchQueue.main.async{ self.lblClockOut.textColor = UIColor(named: "Green-9920") }

Answer 2

In my projects I would apply colors like this:

extension UIColor {

    static let green_9920 = #colorLiteral(red: 0.0862745098, green: 0.8509803922, blue: 0.4470588235, alpha: 1)

}

// Usage example:

lblClockOut.textColor = .green_9920

I've never had issues with simulators so maybe this will work for you. Your code seems fine at first glance so not sure why its not working but you could try resetting the iOS 12 simulator and maybe its something to do with the referencing of your custom color.