How to validate keystrokes in SwiftUI?

Using Swift
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1

The question is in the subject.

2

Maybe you can use onEditingChange to monitor the changes to the text and do your validation.

You could even add a didSet to the variable that holds the text and do your validation there perhaps? Something like this.

3

Will that prevent invalid characters appearing in the text field?

4

It's now been three months since I started this thread. I there nobody who has tried to solve this?

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5

I think there are a couple of articles on this topic. Have you tried a google search? One way would be to have your own @Binding with a custom setter that does the validation on the newValue.

6

I still haven't found a decent solution. Have you by chance?

7

See here and here

1 Like
8

Thanks! I'll give these a look.