I have a composable screen that uses `LaunchedEffect` to per

Question

I have a composable screen that uses `LaunchedEffect` to perform one off navigation events based on state So for example if the current `viewState` is `Unauthorized` I might use a `LaunchedEffect` to call `navigateToLoginScreen ` But let s say there are two of these launched effects with two possible navigation destinations I ve noticed an issue where if the `viewState` updates and triggers a navigation event the `viewState` can again update before that navigation transition is complete triggering yet another navigation event This means my navigation can end up in an unexpected state Is there a way to ensure a LaunchedEffect is cancelled before the composition leaves the tree like during a navigation transition

Ben Trengrove [G] · Answer

You can wrap your navigate calls in a check to make sure the lifecycle is still active <https github com android compose samples blob 081721ad44dfb29b55b1bc34f83d693b6b8dc9dd Jetsnack app src main java com example jetsnack ui JetsnackAppState kt L141 L147|https github com android compose samples blob 081721ad44dfb29b55b1bc34f83d693b6b k app src main java com example jetsnack ui JetsnackAppState kt>

Ian Lake · Answer

FWIW probably a better question for < C04TPPEQKEJ|compose android> going forward

Ian Lake · Answer

But yep checking for `RESUMED` is enough see the previous time we discussed this <https kotlinlang slack com archives CJLTWPH7S p1677626180373409 thread ts=1677626180 373409 amp cid=CJLTWPH7S|https kotlinlang slack com archives CJLTWPH7S p1677626180373409 thread ts=1677626180 373409 amp cid=CJLTWPH7S>

Tim Malseed · Answer

Ohhh I thought compose and compose android were merged

Ian Lake · Answer

Just the opposite < C04TPPEQKEJ|compose android> is the new home for Android only stuff

Tim Malseed · Answer

No worries thanks slightly smiling face

Tim Malseed · Answer

Thanks all I tried this approach only navigate if the initiating back stack entry is resumed It solves one problem but introduces another I ve asked over at < C04TPPEQKEJ|compose android> It feels rather complicated disappointed