Hello everyone, I made a very simple app using com...

# compose

[bmo]

Hello everyone, I made a very simple app using compose and it crashes with the error : java.lang.IllegalArgumentException: Key 640122159 was already registered. Please call unregister before registering again
The code can be found here https://github.com/bmonjoie/ComposeTipsCalculator
I have seriously no idea what I'm doing wrong so if someone could give me any pointers, that would be really appreciated

[Andrey Kulikov]

hey, it is a known bug, where we don't do keys namespacing automatically yet, but it will be fixed. for now please change
(tips + null as TipsEntry?).forEach { entry ->
Entry(entry, onEntryChanged)
}
to
(tips + null as TipsEntry?).forEach { entry ->
key(entry) {
Entry(entry, onEntryChanged)
}
}
inside your Tips function

[bmo]

Thank you very much. I tried the following :

(tips + null as TipsEntry?).forEach { entry ->
            val index = tips.indexOf(entry)
            key(if (index < 0) tips.size else index) {
                Entry(entry, onEntryChanged)
            }
        }

The first time I insert something in the empty field, it works. If i then proceed to the second line (now empty field) and type 1 number, the third line is added but if I enter again a number (in the second field, not changing the focus), it crashes with the same error

[bmo]

I think I figured out the problem, it's basically when I enter the same amount twice

[bmo]

So, because I'm using a data class, when I have the same value in two rows, even with the key(index) {} it crashes. If I remove the keyword data from my TipsEntry, it doesn't crash anymore

[Andrey Kulikov]

right, basically you need to provide something unique in the key function. seems like some of your entries are equals to each other