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iOS Build a Simple iPhone App with Swift Improving Our User Interface Adding a Pop of Color

Posted by Raghav Bhasin
Raghav Bhasin
2,657 Points

UIColor is an unresolved identifier, while running the test code in the playground. How to fix that?

I wrote, var redColor = UIColor(red : 223/255.0, green : 86/255.0, blue : 94/255.0, alpha : 1.0)

4 Answers

oivindberg
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oivindberg
Full Stack JavaScript Techdegree Graduate 43,923 Points
oivindberg
.a{fill-rule:evenodd;}techdegree seal-36
oivindberg
Full Stack JavaScript Techdegree Graduate 43,923 Points

Did you remember import UIKit at the top of your code?

Raghav Bhasin
Raghav Bhasin
2,657 Points
Raghav Bhasin
Raghav Bhasin
2,657 Points

Yes I did, some other problem. Thanks.

oivindberg
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PLUS
.a{fill-rule:evenodd;}techdegree seal-36
oivindberg
Full Stack JavaScript Techdegree Graduate 43,923 Points
oivindberg
.a{fill-rule:evenodd;}techdegree seal-36
oivindberg
Full Stack JavaScript Techdegree Graduate 43,923 Points

Do you have some other code in the playground that may cause the problem? Do you have the latest version of Xcode? It works for me when I copy your code over to an empty playground with import UIKit at the top.

Raghav Bhasin
Raghav Bhasin
2,657 Points
Raghav Bhasin
Raghav Bhasin
2,657 Points

I wasn't working in the playground, I was writing in a separate swift file. Yes, I have the latest version of Xcode and I tried both @import UIKit and import UIKit at different times. I switched the simulator to iPhone 5s from iPhone 5 and it worked, don't know how.