Altered bottom navigation view back stack saving

app/src/main/java/com/rtbishop/look4sat/presentation/MainActivity.kt

@@ -24,6 +24,7 @@ import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
 import androidx.navigation.fragment.NavHostFragment
+import androidx.navigation.ui.NavigationUI
 import androidx.navigation.ui.setupWithNavController
 import com.rtbishop.look4sat.R
 import com.rtbishop.look4sat.databinding.ActivityMainBinding
@@ -42,7 +43,14 @@ class MainActivity : AppCompatActivity() {
         val binding = ActivityMainBinding.inflate(layoutInflater)
         val host = supportFragmentManager.findFragmentById(R.id.navigation_host) as NavHostFragment
         setContentView(binding.root)
-        binding.navigationBar.setupWithNavController(host.navController)
+        binding.navigationBar.apply {
+            setupWithNavController(host.navController)
+            setOnItemSelectedListener { item ->
+                NavigationUI.onNavDestinationSelected(item, host.navController)
+                host.navController.popBackStack(item.itemId, inclusive = false)
+                true
+            }
+        }
         mainViewModel.calculatePasses()
     }
 }