Handling Back Navigation Properly in Jetpack Compose with Custom Navigation
I'm working on a project and hit a roadblock. I'm currently implementing a custom navigation system in my Jetpack Compose application, but I'm running into issues with back navigation. When I navigate from one screen to another using a custom NavHost, pressing the back button does not take me back to the previous screen as expected. Instead, it exits the app. I suspect it might be related to how I am managing the back stack in my NavHost. Here’s a simplified version of my navigation setup: ```kotlin @Composable fun MyAppNavHost() { val navController = rememberNavController() NavHost(navController, startDestination = "home") { composable("home") { HomeScreen(navController) } composable("details/{itemId}") { backStackEntry -> DetailsScreen(backStackEntry.arguments?.getString("itemId"), navController) } } } ``` In the `DetailsScreen`, I have a button to navigate back: ```kotlin @Composable fun DetailsScreen(itemId: String?, navController: NavController) { Button(onClick = { navController.popBackStack() }) { Text("Back") } } ``` However, when I press the device back button after navigating to the Details screen, the app exits instead of going back to `HomeScreen`. I tried adding `android:launchMode="singleTop"` to my activity in the manifest, but that didn't help. I also checked the back stack with `navController.backQueue` and it seems to contain the correct entries. I am using Compose version 1.2.0 and Navigation component version 2.4.0. What am I missing or doing wrong in this custom navigation setup? Any insights would be appreciated! I recently upgraded to Kotlin 3.10. Thanks for any help you can provide!