I m getting this lint error but when I fix the error it stil kotlinlang #compose

I'm getting this lint error, but when I fix the error... it still remains. Am I misunderstanding the issue or does the lint check/lint itself have a bug?

Ben Trengrove [G]

05/16/2022, 6:13 AM

You need a key as well

Colton Idle

05/16/2022, 6:24 AM

🤔

Oh wait. So remember takes an arg? (TIL)

So is this the intended fix?

val sharedVM = remember(navController.currentBackStackEntry) { navController.getBackStackEntry(Screen.LoggedOutScreens.route) }

It does make the error go away. so i suppose so?

Alright. I don't think that was the right thing, because I started getting some stacktrace after just trying to call navController.popBackStack (something about route not found) I went back to just a remember{} without an arg then used `

@SuppressLint("UnrememberedGetBackStackEntry")

and everything works as expected. Im sure thi will bite me and maybe Ian will have more insight (or someone else), but since I have a demo for tomorrow I will keep this for now.

Chris Fillmore

05/16/2022, 9:17 AM

Can you share more code context around that block of code? Is it in a

composable(...) { }

? If so I believe this is the right approach:

composable(...) { navBackStackEntry ->
  val sharedVM = remember(navBackStackEntry) { navController.getBackStackEntry(Screen.LoggedOutScreen.route) }
}

🤞 1

Ben Trengrove [G]

05/16/2022, 10:32 PM

Sorry, yes. You need to pass in a key to remember so it updates correctly. Something like what Chris is suggesting is the way to go

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