小编Ced*_*dar的帖子

所以我有两个选项卡，选项卡 A 和选项卡 B。每个选项卡都有自己的后堆栈。我使用此谷歌文档中的代码实现了多个返回堆栈导航

    val navController = rememberNavController()
Scaffold(
  bottomBar = {
    BottomNavigation {
      val navBackStackEntry by navController.currentBackStackEntryAsState()
      val currentDestination = navBackStackEntry?.destination
      items.forEach { screen ->
        BottomNavigationItem(
          icon = { Icon(Icons.Filled.Favorite, contentDescription = null) },
          label = { Text(stringResource(screen.resourceId)) },
          selected = currentDestination?.hierarchy?.any { it.route == screen.route } == true,
          onClick = {
            navController.navigate(screen.route) {
              // Pop up to the start destination of the graph to
              // avoid building up a large stack of destinations
              // on the …