MDC crashing with 'NSInvalidArgumentException', reason: '-[UIButton applyOutlinedThemeWithScheme:]: unrecognized selector sent to instance

Question

I am trying to set a button property like this, When i add this code it crashes without even displaying the button i have in the main.storyboard.

 let containerScheme = MDCContainerScheme()
        cancelButton.applyOutlinedTheme(withScheme: containerScheme)

score 1 · Answer 1 · answered Jul 18 '20 at 09:01

I faced the same problem. But I was building the UI through code.

import MaterialComponents.MaterialButtons
import MaterialComponents.MaterialButtons_Theming

let button = MDCButton()
button.applyTextTheme(withScheme: MDCContainerScheme())

The following helped me. I just called the option Product -> Clean Build Folder. After that, the abnormal termination of the program disappeared.

score 0 · Answer 2 · answered Jun 10 '19 at 03:30

0

From the error, you can see that UIButton does not have a method called applyOutlinedThemeWithScheme, which could mean that in your storyboard or XIB, you are using a UIButton instead of a MDCButton.

In your storyboard or XIB, go to Identity Inspector, make sure Class is set to MDCButton.

answered Jun 10 '19 at 03:30

Bill

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Hey Bill, Thanks for replying I checked i did add the class as MDCButton but it still says the same thing. – mridul ghanshala Jun 10 '19 at 14:15

MDC crashing with 'NSInvalidArgumentException', reason: '-[UIButton applyOutlinedThemeWithScheme:]: unrecognized selector sent to instance

2 Answers2