Android back button callback?

[react-native-modal]

Android back button callback?

[mmazzarolo]

Maybe I'm missing something but isn't onModalHide enough to achieve your desired effect?
You just navigate to the previous screen when onModalHide is triggered. 🤔

Thank you for noticing the hideOnBack missing documentation, I'm adding it right now :)

[yairk]

Thanks for the quick reply!

The thing is that I don't think I can tell that onModalHide was called as a result of the Back button being pressed. In my particular case, there are other triggers that can cause the modal to go away, and I want to treat the Back button differently.

[mmazzarolo]

I think I got it now :)
Did you already try handling the back button press by catching it in the modal's parent component (through react-native's backandroid)?
I'm not a master of the Android back button functionality but it seems that toying a bit with it should solve your issue.

If it doesn't work I guess another solution would be making this component close when changing it's isVisible prop, but it would require a bit more code on my side... so let me know if the first solution works first! :)

[yairk]

I have a listener for back button at the very "top level" of my app, and when I set hideOnBack to false my listener isn't getting called. I guess that react-native's Modal swallows the notification somehow. I actually didn't try installing a handler in the modal's parent component. Will give it a try.

Not sure I follow what you meant by closing when changing isVisible, but would it be possible for react-native-modal to expose a callback from closeOnBack (or maybe provide an argument to the onModalHide callback that indicates wasClosedByBack)? I don't think this should require too much code. I can try it tomorrow and send it as a pull request if it makes sense to you.

[mmazzarolo]

Honestly, I wanted to preserve closeOnBack/onRequestClose to the current status for another nifty future I planned (hiding modal on backdrop press) but in the end add a callback shouldn't interfere too much at all so... sure, you can do it, a PR is very much welcome :)

Thanks!

[mmazzarolo]

Released on v2.2.0, closing!