Avoid popUpTo and navigateTo same route

app/src/main/kotlin/com/google/samples/apps/nowinandroid/ui/NiaAppState.kt

@@ -33,8 +33,11 @@ import com.google.samples.apps.nowinandroid.core.data.repository.UserNewsResourc
 import com.google.samples.apps.nowinandroid.core.data.util.NetworkMonitor
 import com.google.samples.apps.nowinandroid.core.data.util.TimeZoneMonitor
 import com.google.samples.apps.nowinandroid.core.ui.TrackDisposableJank
+import com.google.samples.apps.nowinandroid.feature.bookmarks.navigation.BookmarksRoute
 import com.google.samples.apps.nowinandroid.feature.bookmarks.navigation.navigateToBookmarks
+import com.google.samples.apps.nowinandroid.feature.foryou.navigation.ForYouRoute
 import com.google.samples.apps.nowinandroid.feature.foryou.navigation.navigateToForYou
+import com.google.samples.apps.nowinandroid.feature.interests.navigation.InterestsRoute
 import com.google.samples.apps.nowinandroid.feature.interests.navigation.navigateToInterests
 import com.google.samples.apps.nowinandroid.feature.search.navigation.navigateToSearch
 import com.google.samples.apps.nowinandroid.navigation.TopLevelDestination
@@ -142,17 +145,22 @@ class NiaAppState(
     fun navigateToTopLevelDestination(topLevelDestination: TopLevelDestination) {
         trace("Navigation: ${topLevelDestination.name}") {
             val topLevelNavOptions = navOptions {
+                val startDestination = navController.graph.findStartDestination()
+                // Avoid popUpTo and navigate to same screen.
+                val shouldNotSavedAndRestored = isStartDestinationSameWithNextDestination(
+                    startDestination, topLevelDestination
+                ) ?: false
                 // Pop up to the start destination of the graph to
                 // avoid building up a large stack of destinations
                 // on the back stack as users select items
                 popUpTo(navController.graph.findStartDestination().id) {
-                    saveState = true
+                    saveState = !shouldNotSavedAndRestored
                 }
                 // Avoid multiple copies of the same destination when
                 // reselecting the same item
-                launchSingleTop = true
+                launchSingleTop = !shouldNotSavedAndRestored
                 // Restore state when reselecting a previously selected item
-                restoreState = true
+                restoreState = !shouldNotSavedAndRestored
             }
 
             when (topLevelDestination) {
@@ -163,6 +171,14 @@ class NiaAppState(
         }
     }
 
+    /**
+     * Check if next destination is same with start destination of current graph.
+     */
+    private fun isStartDestinationSameWithNextDestination(
+        startDestination: NavDestination,
+        nextDestination: TopLevelDestination,
+    ): Boolean? = startDestination.hasRoute(nextDestination.route)
+
     fun navigateToSearch() = navController.navigateToSearch()
 }