D245.1782170397.diff
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	diff --git a/app/src/main/java/it/reyboz/bustorino/ActivityPrincipal.java b/app/src/main/java/it/reyboz/bustorino/ActivityPrincipal.java
	--- a/app/src/main/java/it/reyboz/bustorino/ActivityPrincipal.java
	+++ b/app/src/main/java/it/reyboz/bustorino/ActivityPrincipal.java
	@@ -48,6 +48,7 @@
	import com.google.android.material.snackbar.Snackbar;

	import java.util.Arrays;
	+import java.util.Map;

	import it.reyboz.bustorino.backend.Stop;
	import it.reyboz.bustorino.data.DBUpdateCheckWorker;
	@@ -73,6 +74,30 @@
	private boolean onCreateComplete = false;

	private ServiceAlertsViewModel serviceAlertsViewModel;
	+ private FragmentKind showingFragmentKind;
	+
	+ private final Map<Integer, Runnable> menuActions = Map.of(
	+ R.id.drawer_action_settings, () -> {
	+ Log.d("MAINBusTO", "Pressed button preferences");
	+ startActivity(new Intent(this, ActivitySettings.class));
	+ },
	+
	+ R.id.nav_favorites_item, () ->
	+ checkAndShowFavoritesFragment(getSupportFragmentManager(), true),
	+
	+ R.id.nav_home, () ->
	+ showHomeMainFragmentFromClick(true),
	+
	+ R.id.nav_map_item, () ->
	+ requestMapFragment(true),
	+
	+ R.id.nav_lines_item, () ->
	+ showLinesFragment(getSupportFragmentManager(), true, null),
	+
	+ R.id.drawer_action_info, () ->
	+ startActivity(new Intent(this, ActivityAbout.class)),
	+ R.id.nav_nearby, this::openNearbyStopsFragment
	+ );

	private long lastClosingAttempt = -1L;
	private final OnBackPressedCallback backPressedCallback = new OnBackPressedCallback(false) {
	@@ -99,7 +124,7 @@
	Log.d(DEBUG_TAG, "onCreate, savedInstanceState is: "+savedInstanceState);
	setContentView(R.layout.activity_principal);
	serviceAlertsViewModel = new ViewModelProvider(this).get(ServiceAlertsViewModel.class);
	-
	+ //Use LiveModel to sync fragment state
	/*if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
	getWindow().setNavigationBarContrastEnforced(false);
	}
	@@ -249,14 +274,12 @@
	}else if (savedInstanceState==null) {
	var framan = getSupportFragmentManager();
	//we are not restarting the activity from nothing
	- if (vl.equals("map")) {
	- requestMapFragment(false);
	- } else if (vl.equals("favorites")) {
	- checkAndShowFavoritesFragment(framan, false);
	- } else if (vl.equals("lines")) {
	- showLinesFragment(framan, false, null);
	- } else {
	- showMainFragmentFromClick(false);
	+ switch (vl){
	+ case "map" -> {requestMapFragment(false);}
	+ case "favorites" -> checkAndShowFavoritesFragment(framan, false);
	+ case "lines" -> showLinesFragment(framan, false, null);
	+ case "nearby" -> createShowMainFragment(framan, MainScreenFragment.makeArgsNearby(), false);
	+ default -> showHomeMainFragmentFromClick(false);
	}
	}
	onCreateComplete = true;
	@@ -347,38 +370,15 @@
	private void setupDrawerContent(NavigationView navigationView) {
	navigationView.setNavigationItemSelectedListener(
	menuItem -> {
	- if (menuItem.getItemId() == R.id.drawer_action_settings) {
	- Log.d("MAINBusTO", "Pressed button preferences");
	+ int menuId = menuItem.getItemId();
	+ if( menuActions.containsKey(menuId)){
	closeDrawerIfOpen();
	- startActivity(new Intent(ActivityPrincipal.this, ActivitySettings.class));
	- return true;
	- } else if(menuItem.getItemId() == R.id.nav_favorites_item){
	- closeDrawerIfOpen();
	- //get Fragment
	- checkAndShowFavoritesFragment(getSupportFragmentManager(), true);
	- return true;
	- } else if(menuItem.getItemId() == R.id.nav_arrivals){
	- closeDrawerIfOpen();
	- showMainFragmentFromClick(true);
	- return true;
	- } else if(menuItem.getItemId() == R.id.nav_map_item){
	- closeDrawerIfOpen();
	- requestMapFragment(true);
	- return true;
	- } else if (menuItem.getItemId() == R.id.nav_lines_item) {
	- closeDrawerIfOpen();
	- showLinesFragment(getSupportFragmentManager(), true,null);
	- return true;
	- } else if(menuItem.getItemId() == R.id.drawer_action_info) {
	- closeDrawerIfOpen();
	- startActivity(new Intent(ActivityPrincipal.this, ActivityAbout.class));
	+ var runnable = menuActions.get(menuId);
	+ if(runnable!=null) runnable.run();
	return true;
	+ } else{
	+ return false;
	}
	- //selectDrawerItem(menuItem);
	- Log.d(DEBUG_TAG, "pressed item "+menuItem);
	-
	- return true;
	-
	});

	}
	@@ -451,10 +451,7 @@
	@Override
	public boolean onOptionsItemSelected(@NonNull MenuItem item) {

	- int[] cases = {R.id.nav_arrivals, R.id.nav_favorites_item};
	Log.d(DEBUG_TAG, "Item pressed");
	-
	-
	if (item.getItemId() == android.R.id.home) {
	mDrawer.openDrawer(GravityCompat.START);
	return true;
	@@ -479,24 +476,29 @@

	private boolean activityCustomBackPressed(){
	boolean resolved = true;
	- Fragment shownFrag = getSupportFragmentManager().findFragmentById(R.id.mainActContentFrame);
	+ var mainFragManager = getSupportFragmentManager();
	+ Fragment shownFrag = mainFragManager.findFragmentById(R.id.mainActContentFrame);
	if (mDrawer.isDrawerOpen(GravityCompat.START))
	mDrawer.closeDrawer(GravityCompat.START);
	else if(shownFrag != null && shownFrag.isVisible() && shownFrag.getChildFragmentManager().getBackStackEntryCount() > 0){
	- //if we have been asked to show a stop from another fragment, we should go back even in the main
	if(shownFrag instanceof MainScreenFragment){
	//we have to stop the arrivals reload
	((MainScreenFragment) shownFrag).cancelReloadArrivalsIfNeeded();
	}
	shownFrag.getChildFragmentManager().popBackStack();
	- if(showingMainFragmentFromOther && getSupportFragmentManager().getBackStackEntryCount() > 0){
	+ if(showingMainFragmentFromOther && mainFragManager.getBackStackEntryCount() > 0){
	getSupportFragmentManager().popBackStack();
	Log.d(DEBUG_TAG, "Popping main back stack also");
	}
	}
	else if (getSupportFragmentManager().getBackStackEntryCount() > 0) {
	- getSupportFragmentManager().popBackStack();
	- Log.d(DEBUG_TAG, "Popping main frame backstack for fragments");
	+ mainFragManager.popBackStack();
	+ var newFrag = mainFragManager.findFragmentById(R.id.mainActContentFrame);
	+ if(newFrag != null) {
	+ int backStackCount = newFrag.getChildFragmentManager().getBackStackEntryCount();
	+ Log.d(DEBUG_TAG, "new fragment is "+newFrag.getClass().getSimpleName() +", count of the backstack: "+backStackCount);
	+ }
	+ Log.d(DEBUG_TAG, "Popping main backstack");
	}
	else{
	resolved = false;
	@@ -531,6 +533,16 @@
	Log.e(DEBUG_TAG, "Asked to show the snackbar but the baseView is null");
	}
	}
	+ private void updateShowingFragmentKindInternal(@NonNull FragmentKind newKind){
	+ if(showingFragmentKind == null){
	+ showingFragmentKind = newKind;
	+ showingMainFragmentFromOther = false;
	+ } else if(newKind != showingFragmentKind) {
	+ showingMainFragmentFromOther = (
	+ FragmentKind.getSuperKind(newKind) != FragmentKind.getSuperKind(showingFragmentKind));
	+ showingFragmentKind = newKind;
	+ }
	+ }

	/**
	* Show the actual fragment by adding it to the backstack
	@@ -589,8 +601,17 @@
	}
	}

	- private void showMainFragmentFromClick(boolean addToBackStack){
	- showMainFragmentFromClick(MainScreenFragment.makeArgsButtonsScreen(), addToBackStack);
	+ private void showHomeMainFragmentFromClick(boolean addToBackStack){
	+ FragmentManager fraMan = getSupportFragmentManager();
	+ var fragment = fraMan.findFragmentByTag(MainScreenFragment.FRAGMENT_TAG);
	+ if(fragment instanceof MainScreenFragment mainFrag){
	+ if(!mainFrag.isVisible()){
	+ showMainFragment(fraMan, mainFrag, false);
	+ }
	+ mainFrag.showButtonsFragmentIfNotNearby(addToBackStack);
	+ } else{
	+ createShowMainFragment(fraMan, MainScreenFragment.makeArgsButtonsScreen(), addToBackStack);
	+ }
	}

	private void requestMapFragment(final boolean allowReturn){
	@@ -633,6 +654,7 @@
	ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE)
	.setReorderingAllowed(false);
	ft.commit();
	+
	}

	private void showLinesFragment(@NonNull FragmentManager fragmentManager, boolean addToBackStack, @Nullable Bundle fragArgs){
	@@ -692,6 +714,8 @@
	if (mainFragmentIfVisible!=null){
	mainFragmentIfVisible.readyGUIfor(fragmentType);
	}
	+ updateShowingFragmentKindInternal(fragmentType);
	+
	Integer titleResId = null;
	switch (fragmentType){
	case MAP:
	@@ -704,18 +728,24 @@
	break;
	case ARRIVALS:
	titleResId = R.string.nav_arrivals_text;
	- mNavView.setCheckedItem(R.id.nav_arrivals);
	+ mNavView.setCheckedItem(R.id.nav_home);
	+ //TODO: Figure out way to change title
	+ //mNavView.getCheckedItem().setTitle(R.string.nav_arrivals_text);
	break;
	case STOPS:
	titleResId = R.string.stop_search_view_title;
	- mNavView.setCheckedItem(R.id.nav_arrivals);
	+ mNavView.setCheckedItem(R.id.nav_home);
	break;
	case MAIN_SCREEN_FRAGMENT:
	+ case HOME_BUTTONS:
	+ titleResId=R.string.app_name_full;
	+ mNavView.setCheckedItem(R.id.nav_home);
	+ //mNavView.getCheckedItem().setTitle(R.string.nav_home_text);
	+ break;
	case NEARBY_STOPS:
	case NEARBY_ARRIVALS:
	- case HOME_BUTTONS:
	titleResId=R.string.app_name_full;
	- mNavView.setCheckedItem(R.id.nav_arrivals);
	+ mNavView.setCheckedItem(R.id.nav_nearby);
	break;
	case LINES:
	titleResId=R.string.lines;
	@@ -730,9 +760,9 @@
	public void requestArrivalsForStopID(String ID) {
	//register if the request came from the main fragment or not
	MainScreenFragment probableFragment = getMainFragmentIfVisible();
	- showingMainFragmentFromOther = (probableFragment==null);

	- if (showingMainFragmentFromOther){
	+ // this has some contorted logic, but it works
	+ if (probableFragment == null){
	FragmentManager fraMan = getSupportFragmentManager();
	Fragment fragment = fraMan.findFragmentByTag(MainScreenFragment.FRAGMENT_TAG);
	Log.d(DEBUG_TAG, "Requested main fragment, not visible. Search by TAG returned: "+fragment);
	@@ -755,7 +785,7 @@
	probableFragment.requestArrivalsForStopID(ID);
	}

	- mNavView.setCheckedItem(R.id.nav_arrivals);
	+ mNavView.setCheckedItem(R.id.nav_home);
	}
	@Override
	public void openLineFromStop(String routeGtfsId, @Nullable String stopIDFrom){
	diff --git a/app/src/main/java/it/reyboz/bustorino/adapters/RecyclerViewMargin.java b/app/src/main/java/it/reyboz/bustorino/adapters/RecyclerViewMargin.java
	--- a/app/src/main/java/it/reyboz/bustorino/adapters/RecyclerViewMargin.java
	+++ b/app/src/main/java/it/reyboz/bustorino/adapters/RecyclerViewMargin.java
	@@ -80,6 +80,14 @@
	outRect.right = margin;
	sb.append("right ");
	}
	+ if(position % columns != 0){
	+ outRect.left = margin;
	+ sb.append("left ");
	+ }
	+ if (position >= columns){
	+ outRect.top = margin;
	+ sb.append("top ");
	+ }
	int row = (int)((double) position / columns) ;
	if(nrows == -2 \|\| row < nrows-1){
	outRect.bottom = margin;
	diff --git a/app/src/main/java/it/reyboz/bustorino/adapters/RouteOnlyLineAdapter.kt b/app/src/main/java/it/reyboz/bustorino/adapters/RouteOnlyLineAdapter.kt
	--- a/app/src/main/java/it/reyboz/bustorino/adapters/RouteOnlyLineAdapter.kt
	+++ b/app/src/main/java/it/reyboz/bustorino/adapters/RouteOnlyLineAdapter.kt
	@@ -4,35 +4,28 @@
	import android.view.View
	import android.view.ViewGroup
	import android.widget.TextView
	+import androidx.cardview.widget.CardView
	import androidx.recyclerview.widget.RecyclerView
	import it.reyboz.bustorino.R
	import it.reyboz.bustorino.backend.FiveTNormalizer
	-import it.reyboz.bustorino.backend.Palina
	-import java.lang.ref.WeakReference

	class RouteOnlyLineAdapter (val routeNames: List<String>,
	onItemClick: OnClick?) :
	RecyclerView.Adapter<RouteOnlyLineAdapter.ViewHolder>() {


	- private val clickreference: WeakReference<OnClick>?
	- init {
	- clickreference = if(onItemClick!=null) WeakReference(onItemClick) else null
	- }
	+ private val clickreference = onItemClick
	+

	/**
	* Provide a reference to the type of views that you are using
	* (custom ViewHolder)
	*/
	class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
	- val textView: TextView
	+ val textView: TextView = view.findViewById(R.id.routeBallID)
	+ val cardView: CardView = view.findViewById(R.id.headerCardView)

	- init {
	- // Define click listener for the ViewHolder's View
	- textView = view.findViewById(R.id.routeBallID)
	- }
	}
	- constructor(palina: Palina, showOnlyEmpty: Boolean): this(palina.routesNamesWithNoPassages, null)

	// Create new views (invoked by the layout manager)
	override fun onCreateViewHolder(viewGroup: ViewGroup, viewType: Int): ViewHolder {
	@@ -50,8 +43,8 @@
	// contents of the view with that element
	// SHOW "STAR" as "ST"
	viewHolder.textView.text = FiveTNormalizer.filterFullStarName(routeNames[position])
	- viewHolder.itemView.setOnClickListener{
	- clickreference?.get()?.onItemClick(position, routeNames[position])
	+ viewHolder.cardView.setOnClickListener{
	+ clickreference?.onItemClick(position, routeNames[position])
	}
	}

	diff --git a/app/src/main/java/it/reyboz/bustorino/backend/Palina.java b/app/src/main/java/it/reyboz/bustorino/backend/Palina.java
	--- a/app/src/main/java/it/reyboz/bustorino/backend/Palina.java
	+++ b/app/src/main/java/it/reyboz/bustorino/backend/Palina.java
	@@ -431,6 +431,10 @@
	return mList;
	}

	+ public List<Route> getRoutesWithNoPassages(){
	+ return routes.stream().filter(r -> r.numPassaggi()==0).toList();
	+ }
	+
	private static String pick(String a, String b) {
	return (a != null && !a.isEmpty()) ? a : b;
	}
	diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/ArrivalsFragment.kt b/app/src/main/java/it/reyboz/bustorino/fragments/ArrivalsFragment.kt
	--- a/app/src/main/java/it/reyboz/bustorino/fragments/ArrivalsFragment.kt
	+++ b/app/src/main/java/it/reyboz/bustorino/fragments/ArrivalsFragment.kt
	@@ -37,6 +37,7 @@
	import it.reyboz.bustorino.R
	import it.reyboz.bustorino.adapters.PalinaAdapter
	import it.reyboz.bustorino.adapters.PalinaAdapter.PalinaClickListener
	+import it.reyboz.bustorino.adapters.RouteAdapter
	import it.reyboz.bustorino.adapters.RouteOnlyLineAdapter
	import it.reyboz.bustorino.backend.*
	import it.reyboz.bustorino.backend.DBStatusManager.OnDBUpdateStatusChangeListener
	@@ -89,8 +90,8 @@
	private var fetchers: List<ArrivalsFetcher?> = ArrayList()
	private val arrivalsViewModel : ArrivalsViewModel by viewModels()

	-
	private var reloadOnResume = true
	+ private var routesNoPassages = listOf<Route>()

	fun getStopID() = stopID

	@@ -113,19 +114,22 @@
	}

	override fun requestShowingRoute(route: Route) {
	- Log.d(
	- DEBUG_TAG, """Need to show line for route: gtfsID ${route.gtfsId} name ${route.name}"""
	- )
	- if (route.gtfsId != null) {
	- mListener.openLineFromStop(route.gtfsId, stopID)
	- } else {
	- val gtfsID = FiveTNormalizer.getGtfsRouteID(route)
	- Log.d(DEBUG_TAG, "GtfsID for route is: $gtfsID")
	- mListener.openLineFromStop(gtfsID, stopID)
	- }
	+ showRoutesInLinesFragment(route)
	}
	}

	+ private fun showRoutesInLinesFragment(route: Route) {
	+ Log.d(
	+ DEBUG_TAG, """Need to show line for route: gtfsID ${route.gtfsId} name ${route.name}"""
	+ )
	+ if (route.gtfsId != null) {
	+ mListener.openLineFromStop(route.gtfsId, stopID)
	+ } else {
	+ val gtfsID = FiveTNormalizer.getGtfsRouteID(route)
	+ Log.d(DEBUG_TAG, "GtfsID for route is: $gtfsID")
	+ mListener.openLineFromStop(gtfsID, stopID)
	+ }
	+ }

	override fun onCreate(savedInstanceState: Bundle?) {
	super.onCreate(savedInstanceState)
	@@ -230,13 +234,15 @@
	}
	//no arrivals stuff
	noArrivalsRecyclerView = root.findViewById(R.id.noArrivalsRecyclerView)
	- layoutManager = GridLayoutManager(context, 60)
	+ /*layoutManager = GridLayoutManager(context, 60)
	layoutManager!!.spanSizeLookup = object : SpanSizeLookup() {
	override fun getSpanSize(position: Int): Int {
	return 12
	}
	}
	- noArrivalsRecyclerView.setLayoutManager(layoutManager)
	+
	+ */
	+ noArrivalsRecyclerView.setLayoutManager(getFlexLayoutManager(requireContext()))
	noArrivalsTitleView = root.findViewById(R.id.noArrivalsMessageTextView)

	//canaryEndView = root.findViewById(R.id.canaryEndView);
	@@ -253,6 +259,11 @@

	}
	//lastUpdatedPalina?.let { showArrivalsSources(it) }
	+ return root
	+ }
	+
	+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
	+ super.onViewCreated(view, savedInstanceState)


	arrivalsViewModel.arrivalsRequestRunningLiveData.observe(viewLifecycleOwner, { running ->
	@@ -324,10 +335,8 @@
	arrivalsViewModel.stopInFavorites.observe(viewLifecycleOwner, { isFavorite ->
	updateStarIcon(isFavorite)
	})
	- return root
	}

	-
	private fun showShortToast(id: Int) = showToastMessage(id,true)

	private fun showFetcherMessage(id: Int, source: Source?){
	@@ -513,14 +522,20 @@
	}


	- val routesWithNoPassages = lastUpdatedPalina!!.routesNamesWithNoPassages
	+ val routesWithNoPassages = lastUpdatedPalina!!.routesWithNoPassages
	if (routesWithNoPassages.isEmpty()) {
	//hide the views if there are no empty routes
	noArrivalsRecyclerView.visibility = View.GONE
	noArrivalsTitleView!!.visibility = View.GONE
	} else {
	- Collections.sort(routesWithNoPassages, LinesNameSorter())
	- noArrivalsAdapter = RouteOnlyLineAdapter(routesWithNoPassages, null)
	+ val sorter = LinesNameSorter()
	+
	+ this.routesNoPassages = routesWithNoPassages.sortedWith{ r1, r2 -> sorter.compare(r1.displayCode, r2.displayCode) }
	+ noArrivalsAdapter = RouteOnlyLineAdapter(routesNoPassages.map{r->r.displayCode}, ){ idx,_ ->
	+ val route = routesNoPassages[idx]
	+ showRoutesInLinesFragment(route)
	+
	+ }
	noArrivalsRecyclerView.adapter = noArrivalsAdapter

	noArrivalsRecyclerView.visibility = View.VISIBLE
	diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/ButtonsFragment.kt b/app/src/main/java/it/reyboz/bustorino/fragments/ButtonsFragment.kt
	--- a/app/src/main/java/it/reyboz/bustorino/fragments/ButtonsFragment.kt
	+++ b/app/src/main/java/it/reyboz/bustorino/fragments/ButtonsFragment.kt
	@@ -10,6 +10,7 @@
	import android.widget.ImageView
	import android.widget.TextView
	import androidx.fragment.app.Fragment
	+import androidx.fragment.app.activityViewModels
	import androidx.recyclerview.widget.GridLayoutManager
	import androidx.recyclerview.widget.RecyclerView
	import com.google.android.material.card.MaterialCardView
	@@ -30,6 +31,7 @@

	private var listener: CommonFragmentListener? = null
	private lateinit var items: List<CardMenuItem>
	+ //private val fragmentShowingViewModel: FragmentShowingViewModel by activityViewModels()

	override fun onCreate(savedInstanceState: Bundle?) {
	super.onCreate(savedInstanceState)
	@@ -42,7 +44,7 @@
	}
	}
	private val marginHoriz = 30
	- private val margin = 22
	+ private val margin = 11

	override fun onCreateView(
	inflater: LayoutInflater, container: ViewGroup?,
	@@ -50,8 +52,10 @@
	): View? {
	// Inflate the layout for this fragment
	val root = inflater.inflate(R.layout.fragment_buttons, container, false)
	+
	+ // this is the actual list of the buttons
	items = listOf(
	- CardMenuItem(CardAction.NEARBY, getString(R.string.nearby_message_home_card), R.drawable.compass_3_fill),
	+ CardMenuItem(CardAction.NEARBY, getString(R.string.near_me_title), R.drawable.compass_3_fill),
	CardMenuItem(CardAction.MAP, getString(R.string.map), R.drawable.map),
	CardMenuItem(CardAction.FAVORITES_STOPS, getString(R.string.action_favorites), R.drawable.ic_star_filled_white),
	CardMenuItem(CardAction.LINES, getString(R.string.lines), R.drawable.ic_moving_emph),
	diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/FavoritesFragment.java b/app/src/main/java/it/reyboz/bustorino/fragments/FavoritesFragment.java
	--- a/app/src/main/java/it/reyboz/bustorino/fragments/FavoritesFragment.java
	+++ b/app/src/main/java/it/reyboz/bustorino/fragments/FavoritesFragment.java
	@@ -161,6 +161,7 @@
	showStops(new ArrayList<>());
	return root;
	}
	+
	@Override
	public void onAttach(@NonNull Context context) {
	super.onAttach(context);
	diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/FragmentKind.java b/app/src/main/java/it/reyboz/bustorino/fragments/FragmentKind.java
	--- a/app/src/main/java/it/reyboz/bustorino/fragments/FragmentKind.java
	+++ b/app/src/main/java/it/reyboz/bustorino/fragments/FragmentKind.java
	@@ -17,7 +17,19 @@
	*/
	package it.reyboz.bustorino.fragments;

	+import androidx.annotation.NonNull;
	+import androidx.annotation.Nullable;
	+
	public enum FragmentKind {
	STOPS,ARRIVALS,FAVORITES,NEARBY_STOPS,NEARBY_ARRIVALS, MAP, MAIN_SCREEN_FRAGMENT,
	- LINES, HOME_BUTTONS
	+ LINES, HOME_BUTTONS;
	+
	+ @NonNull
	+ public static FragmentKind getSuperKind(@NonNull FragmentKind kind){
	+ return switch (kind) {
	+ case STOPS, ARRIVALS, NEARBY_STOPS, NEARBY_ARRIVALS, HOME_BUTTONS ->
	+ MAIN_SCREEN_FRAGMENT;
	+ default -> kind;
	+ };
	+ }
	}
	diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/LinesDetailFragment.kt b/app/src/main/java/it/reyboz/bustorino/fragments/LinesDetailFragment.kt
	--- a/app/src/main/java/it/reyboz/bustorino/fragments/LinesDetailFragment.kt
	+++ b/app/src/main/java/it/reyboz/bustorino/fragments/LinesDetailFragment.kt
	@@ -281,6 +281,67 @@
	LivePositionsDialogFragment().show(parentFragmentManager, "LivePositionsDialog")
	}
	//set
	+
	+ lineInfoButton.setOnClickListener {
	+ AlertsDialogFragment(lineID).show(parentFragmentManager, "Alerts-Line$lineID")
	+ }
	+ /*
	+
	+ */
	+
	+ Log.d(DEBUG_TAG,"Data ${viewModel.stopsForPatternLiveData.value}")
	+
	+ //listeners
	+ patternsSpinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
	+ override fun onItemSelected(p0: AdapterView<*>?, p1: View?, position: Int, p3: Long) {
	+ val currentShownPattern = patternShown?.pattern
	+ val patternWithStops = currentPatterns[position]
	+
	+ Log.d(DEBUG_TAG, "request stops for pattern ${patternWithStops.pattern.code}")
	+ setPatternAndReqStops(patternWithStops)
	+
	+ if(mapView?.visibility == View.VISIBLE) {
	+ //Clear buses if we are changing direction
	+ currentShownPattern?.let { patt ->
	+ if(patt.directionId != patternWithStops.pattern.directionId){
	+ stopAnimations()
	+ updatesByVehDict.clear()
	+ updatePositionsIcons(true)
	+ livePositionsViewModel.retriggerPositionUpdate()
	+ }
	+ if (shownStopInBottomSheet!=null){
	+ //check if the stop is inside the new pattern
	+ /*val s = shownStopInBottomSheet!!
	+ val newPatternStops = patternWithStops.stopsIndices
	+ val filterPStops = newPatternStops.filter { ps -> ps.stopGtfsId == "gtt:${s.ID}" }
	+ if (filterPStops.isEmpty()){
	+ hideStopOrBusBottomSheet()
	+ }
	+ */
	+ // do another thing, just close the stop when the pattern is changed
	+ if (patt.code != patternWithStops.pattern.code){
	+ hideStopOrBusBottomSheet()
	+ }
	+ }
	+ }
	+ }
	+ livePositionsViewModel.setGtfsLineToFilterPos(lineID, patternWithStops.pattern)
	+
	+ }
	+
	+ override fun onNothingSelected(p0: AdapterView<*>?) {
	+ }
	+ }
	+ Log.d(DEBUG_TAG, "Views created!")
	+
	+ observeStatusLivePositions()
	+
	+ return rootView
	+ }
	+
	+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
	+ super.onViewCreated(view, savedInstanceState)
	+ //reflect UI
	//INITIALIZE VIEW MODELS
	viewModel.setRouteIDQuery(lineID)
	livePositionsViewModel.setGtfsLineToFilterPos(lineID, null)
	@@ -333,7 +394,7 @@
	//TODO: Decide if we should follow the camera view given by the previous screen (probably the map fragment)
	// use !restoredCameraInMap to do so

	- // val shouldZoom = (shownStopInBottomSheet == null) //use this if we want to avoid zoom when we're keeping the stop open
	+ // val shouldZoom = (shownStopInBottomSheet == null) //use this if we want to avoid zoom when we're keeping the stop open
	displayPatternWithStopsOnMap(pattern, stops, true)
	} else {
	if(stopsRecyclerView.visibility==View.VISIBLE) {
	@@ -348,7 +409,7 @@
	activity?.supportFragmentManager?.popBackStack()
	return@observe
	}
	- descripTextView.text = route.longName
	+ descripTextView.text = route.longName
	descripTextView.visibility = View.VISIBLE
	}
	mapStateViewModel.locationUserActive.observe(viewLifecycleOwner) {
	@@ -365,63 +426,7 @@
	} else
	lineInfoButton.visibility = View.GONE
	}
	- lineInfoButton.setOnClickListener {
	- AlertsDialogFragment(lineID).show(parentFragmentManager, "Alerts-Line$lineID")
	- }
	- /*
	-
	- */
	-
	- Log.d(DEBUG_TAG,"Data ${viewModel.stopsForPatternLiveData.value}")
	-
	- //listeners
	- patternsSpinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
	- override fun onItemSelected(p0: AdapterView<*>?, p1: View?, position: Int, p3: Long) {
	- val currentShownPattern = patternShown?.pattern
	- val patternWithStops = currentPatterns[position]
	-
	- Log.d(DEBUG_TAG, "request stops for pattern ${patternWithStops.pattern.code}")
	- setPatternAndReqStops(patternWithStops)
	-
	- if(mapView?.visibility == View.VISIBLE) {
	- //Clear buses if we are changing direction
	- currentShownPattern?.let { patt ->
	- if(patt.directionId != patternWithStops.pattern.directionId){
	- stopAnimations()
	- updatesByVehDict.clear()
	- updatePositionsIcons(true)
	- livePositionsViewModel.retriggerPositionUpdate()
	- }
	- if (shownStopInBottomSheet!=null){
	- //check if the stop is inside the new pattern
	- /*val s = shownStopInBottomSheet!!
	- val newPatternStops = patternWithStops.stopsIndices
	- val filterPStops = newPatternStops.filter { ps -> ps.stopGtfsId == "gtt:${s.ID}" }
	- if (filterPStops.isEmpty()){
	- hideStopOrBusBottomSheet()
	- }
	- */
	- // do another thing, just close the stop when the pattern is changed
	- if (patt.code != patternWithStops.pattern.code){
	- hideStopOrBusBottomSheet()
	- }
	- }
	- }
	- }
	- livePositionsViewModel.setGtfsLineToFilterPos(lineID, patternWithStops.pattern)
	-
	- }
	-
	- override fun onNothingSelected(p0: AdapterView<*>?) {
	- }
	- }
	- Log.d(DEBUG_TAG, "Views created!")
	-
	- observeStatusLivePositions()
	-
	- return rootView
	}
	-
	// ------------- UI switch stuff ---------

	private fun hideMapAndShowStopList(){
	diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/LinesFragment.kt b/app/src/main/java/it/reyboz/bustorino/fragments/LinesFragment.kt
	--- a/app/src/main/java/it/reyboz/bustorino/fragments/LinesFragment.kt
	+++ b/app/src/main/java/it/reyboz/bustorino/fragments/LinesFragment.kt
	@@ -127,40 +127,7 @@
	Log.d(DEBUG_TAG, "OnCreateView, selected line spinner pos: ${linesSpinner.selectedItemPosition}")
	Log.d(DEBUG_TAG, "OnCreateView, selected patterns spinner pos: ${patternsSpinner.selectedItemPosition}")

	- //set requests
	- viewModel.routesGTTLiveData.observe(viewLifecycleOwner) {
	- setRoutes(it)
	- }
	-
	- viewModel.patternsWithStopsByRouteLiveData.observe(viewLifecycleOwner){
	- patterns ->
	- run {
	- selectedPatterns = patterns.sortedBy { p-> p.pattern.code }
	- //patterns. //sortedBy {-1*it.stopsIndices.size}// "${p.pattern.directionId} - ${p.pattern.headsign}" }
	- patternsAdapter?.let {
	- it.clear()
	- it.addAll(selectedPatterns.map { p->"${p.pattern.directionId} - ${p.pattern.headsign}" })
	- it.notifyDataSetChanged()
	- }
	- viewModel.selectedPatternLiveData.value?.let {
	- setSelectedPattern(it)
	- }

	- val pos = patternsSpinner.selectedItemPosition
	- //might be possible that the selectedItem is different (larger than list size)
	- if(pos!= INVALID_POSITION && pos >= 0 && (pos < selectedPatterns.size)){
	- val p = selectedPatterns[pos]
	- Log.d(DEBUG_TAG, "Setting patterns with pos $pos and p gtfsID ${p.pattern.code}")
	- setPatternAndReqStops(selectedPatterns[pos])
	- }
	-
	- }
	- }
	-
	- viewModel.stopsForPatternLiveData.observe(viewLifecycleOwner){stops->
	- Log.d("BusTO-LinesFragment", "Setting stops from DB")
	- setCurrentStops(stops)
	- }

	if(context!=null) {
	patternsAdapter = ArrayAdapter(requireContext(), android.R.layout.simple_spinner_dropdown_item, ArrayList<String>())
	@@ -209,6 +176,44 @@
	return rootView
	}

	+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
	+ super.onViewCreated(view, savedInstanceState)
	+ //set requests
	+ viewModel.routesGTTLiveData.observe(viewLifecycleOwner) {
	+ setRoutes(it)
	+ }
	+
	+ viewModel.patternsWithStopsByRouteLiveData.observe(viewLifecycleOwner){
	+ patterns ->
	+ run {
	+ selectedPatterns = patterns.sortedBy { p-> p.pattern.code }
	+ //patterns. //sortedBy {-1*it.stopsIndices.size}// "${p.pattern.directionId} - ${p.pattern.headsign}" }
	+ patternsAdapter?.let {
	+ it.clear()
	+ it.addAll(selectedPatterns.map { p->"${p.pattern.directionId} - ${p.pattern.headsign}" })
	+ it.notifyDataSetChanged()
	+ }
	+ viewModel.selectedPatternLiveData.value?.let {
	+ setSelectedPattern(it)
	+ }
	+
	+ val pos = patternsSpinner.selectedItemPosition
	+ //might be possible that the selectedItem is different (larger than list size)
	+ if(pos!= INVALID_POSITION && pos >= 0 && (pos < selectedPatterns.size)){
	+ val p = selectedPatterns[pos]
	+ Log.d(DEBUG_TAG, "Setting patterns with pos $pos and p gtfsID ${p.pattern.code}")
	+ setPatternAndReqStops(selectedPatterns[pos])
	+ }
	+
	+ }
	+ }
	+
	+ viewModel.stopsForPatternLiveData.observe(viewLifecycleOwner){stops->
	+ Log.d("BusTO-LinesFragment", "Setting stops from DB")
	+ setCurrentStops(stops)
	+ }
	+ }
	+
	override fun onAttach(context: Context) {
	super.onAttach(context)
	if(context is CommonFragmentListener)
	diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/LinesGridShowingFragment.kt b/app/src/main/java/it/reyboz/bustorino/fragments/LinesGridShowingFragment.kt
	--- a/app/src/main/java/it/reyboz/bustorino/fragments/LinesGridShowingFragment.kt
	+++ b/app/src/main/java/it/reyboz/bustorino/fragments/LinesGridShowingFragment.kt
	@@ -81,14 +81,6 @@
	private val lastQueryEmptyForAgency = HashMap<String, Boolean>(3)
	private var openRecyclerView = "AG_URBAN"

	- private fun getFlexLayoutManager(context: Context): FlexboxLayoutManager{
	- val layoutManager = FlexboxLayoutManager(context)
	- layoutManager.flexDirection = FlexDirection.ROW
	- layoutManager.justifyContent = JustifyContent.FLEX_START
	-
	- return layoutManager
	- }
	-
	override fun onCreateView(
	inflater: LayoutInflater, container: ViewGroup?,
	savedInstanceState: Bundle?
	@@ -122,7 +114,6 @@
	//init favorites recyclerview
	favoritesRecyclerView.layoutManager = getFlexLayoutManager(requireContext())

	-
	viewModel.getLinesLiveData().observe(viewLifecycleOwner){ rL ->

	routesByAgency.clear()
	@@ -167,16 +158,6 @@
	}

	}
	- viewModel.favoritesLines.observe(viewLifecycleOwner){ routes->
	- val routesNames = routes.map { it.shortName }
	- //create new item click listener every time
	- val adapter = RouteOnlyLineAdapter(routesNames){ pos, _ ->
	- val r = routes[pos]
	- fragmentListener.openLineFromStop(r.gtfsId, null)
	- }
	- favoritesRecyclerView.adapter = adapter
	- }
	-
	//onClicks
	urbanLinesTitle.setOnClickListener {
	openLinesAndCloseOthersIfNeeded(AG_URBAN)
	@@ -220,6 +201,7 @@

	return rootView
	}
	+
	fun setUserSearch(textSearch:String){
	viewModel.setLineQuery(textSearch)
	}
	@@ -228,6 +210,16 @@
	super.onViewCreated(view, savedInstanceState)
	val menuHost: MenuHost = requireActivity()

	+ viewModel.favoritesLines.observe(viewLifecycleOwner){ routes->
	+ val routesNames = routes.map { it.shortName }
	+ //create new item click listener every time
	+ val adapter = RouteOnlyLineAdapter(routesNames){ pos, _ ->
	+ val r = routes[pos]
	+ fragmentListener.openLineFromStop(r.gtfsId, null)
	+ }
	+ favoritesRecyclerView.adapter = adapter
	+ }
	+
	// Add menu items without using the Fragment Menu APIs
	// Note how we can tie the MenuProvider to the viewLifecycleOwner
	// and an optional Lifecycle.State (here, RESUMED) to indicate when
	diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/MainScreenFragment.java b/app/src/main/java/it/reyboz/bustorino/fragments/MainScreenFragment.java
	--- a/app/src/main/java/it/reyboz/bustorino/fragments/MainScreenFragment.java
	+++ b/app/src/main/java/it/reyboz/bustorino/fragments/MainScreenFragment.java
	@@ -19,10 +19,7 @@

	import android.Manifest;
	import android.content.Context;
	-import android.content.Intent;
	import android.content.pm.PackageManager;
	-import android.net.Uri;
	-import android.os.Build;
	import android.os.Bundle;

	import androidx.activity.result.ActivityResultCallback;
	@@ -33,7 +30,6 @@
	import androidx.appcompat.widget.AppCompatImageButton;
	import androidx.coordinatorlayout.widget.CoordinatorLayout;
	import androidx.core.app.ActivityCompat;
	-import androidx.core.content.ContextCompat;
	import androidx.fragment.app.Fragment;
	import androidx.fragment.app.FragmentManager;
	import androidx.fragment.app.FragmentTransaction;
	@@ -42,31 +38,25 @@

	import android.util.Log;
	import android.view.LayoutInflater;
	-import android.view.MenuItem;
	import android.view.View;
	import android.view.ViewGroup;
	import android.view.inputmethod.EditorInfo;
	import android.view.inputmethod.InputMethodManager;
	import android.widget.EditText;
	-import android.widget.FrameLayout;
	import android.widget.ProgressBar;
	import android.widget.Toast;

	import com.google.android.material.floatingactionbutton.FloatingActionButton;

	-import java.security.InvalidParameterException;
	import java.util.Map;
	+import java.util.concurrent.LinkedBlockingQueue;

	import it.reyboz.bustorino.R;
	import it.reyboz.bustorino.backend.*;
	-import it.reyboz.bustorino.middleware.BarcodeScanContract;
	-import it.reyboz.bustorino.middleware.BarcodeScanOptions;
	-import it.reyboz.bustorino.middleware.BarcodeScanUtils;
	import it.reyboz.bustorino.util.Permissions;
	import it.reyboz.bustorino.viewmodels.IntroViewModel;
	import org.jetbrains.annotations.NotNull;

	-import static it.reyboz.bustorino.backend.utils.getBusStopIDFromUri;
	import static it.reyboz.bustorino.util.Permissions.LOCATION_PERMISSIONS;


	@@ -89,20 +79,34 @@
	public final static String FRAGMENT_TAG = "MainScreenFragment";

	private enum SearchMode {SEARCH_ID,SEARCH_NAME,INITIAL}
	- public enum InitialScreen {
	+ public enum InternalScreen {
	HOME_BUTTONS(0),
	NEARBY_STOPS(1),
	ARRIVALS(2),
	- STOP_SEARCH(3);
	+ STOP_SEARCH(3),
	+ NEARBY_ARRIVALS(4);

	public final int code;
	- InitialScreen(int code) { this.code = code; }
	+ InternalScreen(int code) { this.code = code; }

	@Nullable
	- public static InitialScreen fromCode(int code) {
	- for (InitialScreen c : values()) if (c.code == code) return c;
	+ public static InternalScreen fromCode(int code) {
	+ for (InternalScreen c : values()) if (c.code == code) return c;
	return null;
	}
	+ @NonNull
	+ public static InternalScreen fromFragmentKind(@NonNull FragmentKind kind){
	+ switch (kind){
	+ case HOME_BUTTONS -> { return InternalScreen.HOME_BUTTONS; }
	+ case NEARBY_STOPS -> { return InternalScreen.NEARBY_STOPS; }
	+ case FragmentKind.ARRIVALS -> { return InternalScreen.ARRIVALS; }
	+ case FragmentKind.STOPS -> { return InternalScreen.STOP_SEARCH; }
	+ case FragmentKind.NEARBY_ARRIVALS -> { return InternalScreen.NEARBY_ARRIVALS; }
	+ default -> {
	+ throw new IllegalArgumentException("Unknown fragment kind");
	+ }
	+ }
	+ }
	}

	private FragmentHelper fragmentHelper;
	@@ -110,23 +114,34 @@
	private EditText busStopSearchByIDEditText;
	private EditText busStopSearchByNameEditText;
	private ProgressBar progressBar;
	-
	- private MenuItem actionHelpMenuItem;
	private FloatingActionButton floatingActionButton;
	- private FrameLayout resultFrameLayout;
	+
	+ /// VIEW MODELS in BaseFragment
	+

	private boolean setupOnStart = true;
	private boolean suppressArrivalsReload = false;
	- //private Snackbar snackbar;
	- /*
	- * Search mode
	- */
	-
	+ private boolean initialScreenShown = false;
	private SearchMode searchMode = SearchMode.INITIAL;
	- //private ImageButton addToFavorites;
	- //// HIDDEN BUT IMPORTANT ELEMENTS ////
	private FragmentManager childFragMan;
	- private IntroViewModel introViewModel;
	+
	+ /// LOCATION STUFF ///
	+ boolean pendingIntroRun = false;
	+ boolean pendingNearbyStopsFragmentRequest = false;
	+ boolean pendingNearbyAddToBackStack = false;
	+ boolean locationPermissionGranted, locationPermissionAsked = false;
	+
	+ //// ACTIVITY ATTACHED (LISTENER ///
	+ private CommonFragmentListener mListener;
	+
	+ private String pendingStopID = null;
	+ private String pendingSearchQuery = null;
	+ private InternalScreen internalScreen = InternalScreen.HOME_BUTTONS;
	+ private CoordinatorLayout coordLayout;
	+
	+ //this is really a hackish thing, but it works
	+ private LinkedBlockingQueue<Runnable> thingsToDoOnStart = new LinkedBlockingQueue<>();
	+
	private void refreshStop() {
	if(getContext() == null){
	Log.w(DEBUG_TAG,"Asked to refresh stop but context is null");
	@@ -146,13 +161,6 @@
	}
	}

	-
	- /// LOCATION STUFF ///
	- boolean pendingIntroRun = false;
	- boolean pendingNearbyStopsFragmentRequest = false;
	- boolean pendingNearbyAddToBackStack = false;
	- boolean locationPermissionGranted, locationPermissionAsked = false;
	- //AppLocationManager locationManager;
	private final ActivityResultLauncher<String[]> requestPermissionLauncher =
	registerForActivityResult(new ActivityResultContracts.RequestMultiplePermissions(), new ActivityResultCallback<>() {
	@Override
	@@ -187,28 +195,19 @@
	}
	});

	-
	- //// ACTIVITY ATTACHED (LISTENER ///
	- private CommonFragmentListener mListener;
	-
	- private String pendingStopID = null;
	- private String pendingSearchQuery = null;
	- private InitialScreen initialScreen = InitialScreen.HOME_BUTTONS;
	- private CoordinatorLayout coordLayout;
	-
	public MainScreenFragment() {
	// Required empty public constructor
	}


	- public static MainScreenFragment newInstance(@NonNull InitialScreen kind,
	+ public static MainScreenFragment newInstance(@NonNull InternalScreen kind,
	@Nullable String stopId,
	@Nullable String query) {
	MainScreenFragment f = new MainScreenFragment();
	f.setArguments(makeArgs(kind, stopId, query));
	return f;
	}
	- public static MainScreenFragment newInstance(@NonNull InitialScreen kind, @Nullable Bundle args){
	+ public static MainScreenFragment newInstance(@NonNull InternalScreen kind, @Nullable Bundle args){
	MainScreenFragment f = new MainScreenFragment();
	if (args != null) {
	f.setArguments(args);
	@@ -223,7 +222,7 @@
	* @param query
	* @return
	*/
	- public static Bundle makeArgs(@NonNull InitialScreen kind, @Nullable String stopId, @Nullable String query) {
	+ public static Bundle makeArgs(@NonNull InternalScreen kind, @Nullable String stopId, @Nullable String query) {
	Bundle b = new Bundle();
	b.putInt(ARG_INITIAL_CONTENT, kind.code);
	if (stopId != null) b.putString(ARG_STOP_ID, stopId);
	@@ -231,16 +230,16 @@
	return b;
	}
	public static Bundle makeArgsArrivals(@NonNull String stopID){
	- return makeArgs(InitialScreen.ARRIVALS, stopID, null);
	+ return makeArgs(InternalScreen.ARRIVALS, stopID, null);
	}
	public static Bundle makeArgsStops(@NonNull String query){
	- return makeArgs(InitialScreen.STOP_SEARCH, query, null);
	+ return makeArgs(InternalScreen.STOP_SEARCH, query, null);
	}
	public static Bundle makeArgsNearby(){
	- return makeArgs(InitialScreen.NEARBY_STOPS, null, null);
	+ return makeArgs(InternalScreen.NEARBY_STOPS, null, null);
	}
	public static Bundle makeArgsButtonsScreen(){
	- return makeArgs(InitialScreen.HOME_BUTTONS, null, null);
	+ return makeArgs(InternalScreen.HOME_BUTTONS, null, null);
	}


	@@ -253,9 +252,9 @@
	Log.d(DEBUG_TAG, "ARGS ARE NOT NULL: "+ args);

	if (args.containsKey(ARG_INITIAL_CONTENT)) {
	- int code = args.getInt(ARG_INITIAL_CONTENT, InitialScreen.HOME_BUTTONS.code);
	- InitialScreen parsed = InitialScreen.fromCode(code);
	- initialScreen = (parsed != null) ? parsed : InitialScreen.HOME_BUTTONS;
	+ int code = args.getInt(ARG_INITIAL_CONTENT, InternalScreen.HOME_BUTTONS.code);
	+ InternalScreen parsed = InternalScreen.fromCode(code);
	+ internalScreen = (parsed != null) ? parsed : InternalScreen.HOME_BUTTONS;
	}
	String stopId = args.getString(ARG_STOP_ID);
	if (stopId != null) pendingStopID = stopId;
	@@ -276,7 +275,6 @@

	swipeRefreshLayout = root.findViewById(R.id.listRefreshLayout);
	floatingActionButton = root.findViewById(R.id.floatingActionButton);
	- resultFrameLayout = root.findViewById(R.id.resultFrame);
	busStopSearchByIDEditText.setSelectAllOnFocus(true);
	busStopSearchByIDEditText
	.setOnEditorActionListener((v, actionId, event) -> {
	@@ -337,14 +335,30 @@
	cr.setPowerRequirement(Criteria.NO_REQUIREMENT);
	*/
	//locationManager = AppLocationManager.getInstance(requireContext());
	- introViewModel = new ViewModelProvider(requireActivity()).get(IntroViewModel.class);
	+ IntroViewModel introViewModel = new ViewModelProvider(requireActivity()).get(IntroViewModel.class);
	introViewModel.getIntroIsRunning().observe(getViewLifecycleOwner(), isRunning -> {
	pendingIntroRun = isRunning;
	});

	- Log.d(DEBUG_TAG, "OnCreateView, savedInstanceState null: "+(savedInstanceState==null));
	+ // TODO: Figure out how to go back to home when pressing home in the nav side bar
	+ /*fragShowingViewModel.getKindShowingFragment().observe(getViewLifecycleOwner(), kind -> {
	+ Log.w(DEBUG_TAG, "showing fragment kind: " + kind);
	+ try {
	+ var screenType = InternalScreen.fromFragmentKind(kind);
	+ if(screenType != internalScreen) {
	+ showDifferentSubFragments(screenType);
	+ internalScreen = screenType;
	+ }
	+ } catch (IllegalArgumentException e) {
	+ //ignored
	+ Log.d(DEBUG_TAG, "no update from fragment kind");
	+ }
	+
	+ });

	+ */

	+ Log.d(DEBUG_TAG, "OnCreateView, savedInstanceState null: "+(savedInstanceState==null));
	return root;
	}

	@@ -371,16 +385,19 @@

	if (savedInstanceState != null) return;

	- dispatchInitialContent();
	+ showDifferentSubFragments(internalScreen);
	}

	/**
	* Installs the initial child fragment based on the arguments supplied as arguments
	*/
	- private void dispatchInitialContent() {
	- switch (initialScreen) {
	+ private void showDifferentSubFragments(@NonNull InternalScreen screen) {
	+ boolean firstTime = !initialScreenShown;
	+ switch (screen) {
	case NEARBY_STOPS:
	- showNearbyStopsFragmentChecking(false);
	+ case NEARBY_ARRIVALS: // TODO differentiate later
	+ //add to back stack if it is not just created
	+ showNearbyStopsFragmentChecking(!firstTime);
	break;
	case ARRIVALS:
	// pendingStopID is consumed in onResume → requestArrivalsForStopID
	@@ -389,13 +406,16 @@
	if (pendingSearchQuery != null && pendingSearchQuery.length() >= 2) {
	fragmentHelper.requestStopSearch(pendingSearchQuery);
	} else {
	- showButtonsFragment(true);
	+ showButtonsFragment(firstTime);
	}
	pendingSearchQuery = null;
	break;
	case HOME_BUTTONS:
	default:
	- showButtonsFragment(true);
	+ showButtonsFragment(firstTime);
	+ }
	+ if(!initialScreenShown){
	+ initialScreenShown = true;
	}
	}

	@@ -461,6 +481,15 @@
	public void onStart() {
	super.onStart();
	Log.d(DEBUG_TAG, "onStart called, setupOnStart: "+setupOnStart);
	+ try {
	+ while (!thingsToDoOnStart.isEmpty()) {
	+ var task = thingsToDoOnStart.take();
	+ task.run();
	+ }
	+ } catch (InterruptedException e) {
	+ Log.w(DEBUG_TAG, "Interrupted while doing task for start");
	+ thingsToDoOnStart.clear();
	+ }
	if (setupOnStart) {
	if (pendingStopID==null){

	@@ -492,6 +521,35 @@
	ft.commit();
	}

	+ public void showButtonsFragmentIfNotNearby(boolean addToBackStack){
	+ if(isAdded()) {
	+ var framan = getChildFragmentManager();
	+ var showingFrag = framan.findFragmentById(R.id.resultFrame);
	+ if (showingFrag == null \|\| showingFrag instanceof NearbyStopsFragment) {
	+ var fragHome = ButtonsFragment.newInstance();
	+ var ft = framan.beginTransaction();
	+ if (showingFrag == null) {
	+ ft.add(R.id.resultFrame, fragHome, ButtonsFragment.FRAGMENT_TAG);
	+ } else {
	+ ft.replace(R.id.resultFrame, fragHome, ButtonsFragment.FRAGMENT_TAG);
	+ }
	+ if (addToBackStack) ft.addToBackStack(null);
	+ ft.commit();
	+ } else {
	+ Log.d(DEBUG_TAG, "attempting to show buttons home fragment but have other types (different than nearby)");
	+ }
	+ } else{
	+ Log.d(DEBUG_TAG, "Fragment is not added, putting in queue of things to do");
	+ try {
	+ thingsToDoOnStart.put(() -> {
	+ showButtonsFragmentIfNotNearby(addToBackStack);
	+ });
	+ } catch (InterruptedException e) {
	+ Log.e(DEBUG_TAG,"Cannot add task");
	+ }
	+ }
	+ }
	+
	private void showNearbyStopsFragmentChecking(boolean addToBackStack){
	if(!checkLocationPermission()){
	requestLocationPermission();
	@@ -554,6 +612,7 @@
	requestArrivalsForStopID(pendingStopID);
	pendingStopID = null;
	}
	+
	mListener.readyGUIfor(FragmentKind.MAIN_SCREEN_FRAGMENT);

	//fragmentHelper.setBlockAllActivities(false);
	@@ -773,7 +832,14 @@

	@Override
	public void openNearbyStopsFragment() {
	- showNearbyStopsFragmentChecking(true);
	+ if(isAdded())
	+ showNearbyStopsFragmentChecking(true);
	+ else
	+ try{
	+ thingsToDoOnStart.put(() -> showNearbyStopsFragmentChecking(true));
	+ } catch (InterruptedException e) {
	+ Log.e(DEBUG_TAG, "trying to put open nearby in task but was interrupted");
	+ }
	}

	@Override
	@@ -791,6 +857,7 @@
	if(mListener!=null) mListener.showMapCenteredOnStop(stop);
	}

	+
	/**
	* Main method for stops requests
	* @param ID the Stop ID
	@@ -869,11 +936,13 @@
	if (!(existingFrag instanceof NearbyStopsFragment)){
	Log.d(DEBUG_TAG, "actually showing Nearby Stops Fragment");
	//there is no fragment showing
	- final NearbyStopsFragment fragment = NearbyStopsFragment.newInstance(NearbyStopsFragment.FragType.STOPS);
	-
	+ var nearbyFrag = (NearbyStopsFragment) childFragMan.findFragmentByTag(NearbyStopsFragment.FRAGMENT_TAG);
	+ if(nearbyFrag==null){
	+ nearbyFrag = NearbyStopsFragment.newInstance(NearbyStopsFragment.FragType.STOPS);
	+ }
	FragmentTransaction ft = childFragMan.beginTransaction();

	- ft.replace(R.id.resultFrame, fragment, NearbyStopsFragment.FRAGMENT_TAG);
	+ ft.replace(R.id.resultFrame, nearbyFrag, NearbyStopsFragment.FRAGMENT_TAG);
	if(addToBackStack) ft.addToBackStack(null);
	if (getActivity()!=null && !getActivity().isFinishing())
	ft.commit();
	diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/MapLibreFragment.kt b/app/src/main/java/it/reyboz/bustorino/fragments/MapLibreFragment.kt
	--- a/app/src/main/java/it/reyboz/bustorino/fragments/MapLibreFragment.kt
	+++ b/app/src/main/java/it/reyboz/bustorino/fragments/MapLibreFragment.kt
	@@ -196,13 +196,21 @@
	}

	*/
	-
	-
	// Setup close button
	rootView.findViewById<View>(R.id.btnClose).setOnClickListener {
	hideStopOrBusBottomSheet()
	}
	- observeStatusLivePositions()
	+
	+
	+ Log.d(DEBUG_TAG, "Fragment View Created!")
	+
	+ //TODO: Reshow last open stop when switching back to the map fragment
	+ return rootView
	+ }
	+
	+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
	+ super.onViewCreated(view, savedInstanceState)
	+
	//observe change in source of the live positions
	livePositionsViewModel.useMQTTPositionsLiveData.observe(viewLifecycleOwner){ useMQTT->
	//Log.d(DEBUG_TAG, "Changed MQTT positions, now have to use MQTT: $useMQTT")
	@@ -237,10 +245,8 @@
	setLocationIconEnabled(it)}
	mapStateViewModel.followingUserPosition.observe(viewLifecycleOwner){ updateFollowingIcon(it)}

	- Log.d(DEBUG_TAG, "Fragment View Created!")
	+ observeStatusLivePositions()

	- //TODO: Reshow last open stop when switching back to the map fragment
	- return rootView
	}

	/**
	diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/NearbyStopsFragment.java b/app/src/main/java/it/reyboz/bustorino/fragments/NearbyStopsFragment.java
	--- a/app/src/main/java/it/reyboz/bustorino/fragments/NearbyStopsFragment.java
	+++ b/app/src/main/java/it/reyboz/bustorino/fragments/NearbyStopsFragment.java
	@@ -486,6 +486,7 @@
	super.onViewCreated(view, savedInstanceState);
	gridRecyclerView.setVisibility(View.INVISIBLE);
	gridRecyclerView.addOnScrollListener(scrollListener);
	+ if(mListener!=null) mListener.readyGUIfor(FragmentKind.NEARBY_STOPS);
	}

	@Override
	@@ -711,4 +712,5 @@
	}

	*/
	+
	}
	diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/ResultBaseFragment.java b/app/src/main/java/it/reyboz/bustorino/fragments/ResultBaseFragment.java
	--- a/app/src/main/java/it/reyboz/bustorino/fragments/ResultBaseFragment.java
	+++ b/app/src/main/java/it/reyboz/bustorino/fragments/ResultBaseFragment.java
	@@ -2,7 +2,6 @@

	import android.content.Context;
	import androidx.annotation.NonNull;
	-import androidx.fragment.app.Fragment;

	public abstract class ResultBaseFragment extends ScreenBaseFragment {

	diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/ResultListFragment.java b/app/src/main/java/it/reyboz/bustorino/fragments/ResultListFragment.java
	--- a/app/src/main/java/it/reyboz/bustorino/fragments/ResultListFragment.java
	+++ b/app/src/main/java/it/reyboz/bustorino/fragments/ResultListFragment.java
	@@ -41,7 +41,6 @@
	import it.reyboz.bustorino.backend.Route;
	import it.reyboz.bustorino.backend.Stop;
	import it.reyboz.bustorino.data.UserDB;
	-
	/**
	* This is a generalized fragment that can be used both for
	*
	diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/ScreenBaseFragment.java b/app/src/main/java/it/reyboz/bustorino/fragments/ScreenBaseFragment.java
	--- a/app/src/main/java/it/reyboz/bustorino/fragments/ScreenBaseFragment.java
	+++ b/app/src/main/java/it/reyboz/bustorino/fragments/ScreenBaseFragment.java
	@@ -3,6 +3,7 @@
	import android.Manifest;
	import android.content.Context;
	import android.content.SharedPreferences;
	+import android.os.Bundle;
	import android.util.Log;
	import android.view.View;
	import android.view.ViewGroup;
	@@ -19,6 +20,9 @@
	import androidx.core.view.WindowInsetsCompat;
	import androidx.fragment.app.Fragment;

	+import com.google.android.flexbox.FlexDirection;
	+import com.google.android.flexbox.FlexboxLayoutManager;
	+import com.google.android.flexbox.JustifyContent;
	import com.google.android.material.snackbar.Snackbar;
	import it.reyboz.bustorino.BuildConfig;

	@@ -30,6 +34,13 @@

	protected final static String PREF_FILE= BuildConfig.APPLICATION_ID+".fragment_prefs";

	+ @Override
	+ public void onCreate(@Nullable Bundle savedInstanceState) {
	+ super.onCreate(savedInstanceState);
	+ }
	+
	+
	+
	protected void setOption(String optionName, boolean value) {
	Context mContext = getContext();
	assert mContext != null;
	@@ -114,6 +125,14 @@
	}
	});
	}
	+
	+ protected FlexboxLayoutManager getFlexLayoutManager(@NonNull Context context) {
	+ var layoutManager = new FlexboxLayoutManager(context);
	+ layoutManager.setFlexDirection(FlexDirection.ROW);
	+ layoutManager.setJustifyContent(JustifyContent.FLEX_START);
	+
	+ return layoutManager;
	+ }
	/*protected void runActionFavorites(@NonNull Stop s, @NonNull FavoritesChangeWorker.Action action, @NonNull FavoritesChangeWorker.Companion.ResultListener resultListener){
	Context mContext = requireContext();

	@@ -172,6 +191,7 @@
	});
	}

	+
	public interface LocationRequestListener{
	void onPermissionResult(boolean locationGranted);
	}
	diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/StopListFragment.java b/app/src/main/java/it/reyboz/bustorino/fragments/StopListFragment.java
	--- a/app/src/main/java/it/reyboz/bustorino/fragments/StopListFragment.java
	+++ b/app/src/main/java/it/reyboz/bustorino/fragments/StopListFragment.java
	@@ -17,11 +17,9 @@
	*/
	package it.reyboz.bustorino.fragments;

	-import android.content.Context;
	import android.database.Cursor;
	import android.net.Uri;
	import android.os.Bundle;
	-import androidx.annotation.NonNull;
	import androidx.loader.app.LoaderManager;
	import androidx.loader.content.CursorLoader;
	import androidx.loader.content.Loader;
	@@ -31,7 +29,6 @@
	import it.reyboz.bustorino.data.AppDataProvider;
	import it.reyboz.bustorino.data.NextGenDB.Contract.StopsTable;
	import it.reyboz.bustorino.adapters.StopAdapter;
	-import org.jetbrains.annotations.NotNull;

	import java.util.Arrays;
	import java.util.List;
	diff --git a/app/src/main/res/layout/round_line_header.xml b/app/src/main/res/layout/round_line_header.xml
	--- a/app/src/main/res/layout/round_line_header.xml
	+++ b/app/src/main/res/layout/round_line_header.xml
	@@ -3,10 +3,10 @@
	xmlns:app="http://schemas.android.com/apk/res-auto"
	android:layout_width="wrap_content"
	android:layout_height="wrap_content"
	-
	+ android:id="@+id/headerCardView"
	android:background="@color/orange_500"
	app:cardCornerRadius="26sp"
	- app:cardElevation="0sp"
	+ app:cardElevation="1sp"
	android:layout_gravity="center_vertical"
	android:layout_margin="5dp"
	android:padding="3dp"
	diff --git a/app/src/main/res/menu/drawer_main.xml b/app/src/main/res/menu/drawer_main.xml
	--- a/app/src/main/res/menu/drawer_main.xml
	+++ b/app/src/main/res/menu/drawer_main.xml
	@@ -3,9 +3,14 @@

	<group android:checkableBehavior="single">
	<item
	- android:id="@+id/nav_arrivals"
	+ android:id="@+id/nav_home"
	android:icon="@drawable/ic_baseline_departure_board_24"
	android:title="@string/nav_home_text" />
	+ <item
	+ android:id="@+id/nav_nearby"
	+ android:icon="@drawable/compass_3_fill"
	+ android:title="@string/near_me_title"
	+ />
	<item
	android:id="@+id/nav_map_item"
	android:icon="@drawable/ic_baseline_map_24"
	diff --git a/app/src/main/res/values-it/strings.xml b/app/src/main/res/values-it/strings.xml
	--- a/app/src/main/res/values-it/strings.xml
	+++ b/app/src/main/res/values-it/strings.xml
	@@ -75,7 +75,7 @@
	<string name="action_view_on_map">Visualizza sulla mappa</string>
	<string name="cannot_show_on_map_no_activity">Non trovo un\'applicazione dove mostrarla</string>
	<string name="cannot_show_on_map_no_position">Posizione della fermata non trovata</string>
	- <string name="nearby_message_home_card">Vicino a me</string>
	+ <string name="near_me_title">Vicino a me</string>
	<string name="nearby_stops_message">Fermate vicine</string>
	<string name="position_searching_message">Ricerca della posizione</string>
	<string name="no_stops_nearby">Nessuna fermata nei dintorni</string>
	diff --git a/app/src/main/res/values/keys.xml b/app/src/main/res/values/keys.xml
	--- a/app/src/main/res/values/keys.xml
	+++ b/app/src/main/res/values/keys.xml
	@@ -8,7 +8,9 @@


	<array name="first_screen_values">
	+ <!-- the "arrivals" key is just a placeholder for "home" screen, keeping for backwards compatibility -->
	<item>arrivals</item>
	+ <item>nearby</item>
	<item>favorites</item>
	<item>map</item>
	<item>lines</item>
	diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
	--- a/app/src/main/res/values/strings.xml
	+++ b/app/src/main/res/values/strings.xml
	@@ -152,8 +152,9 @@
	<string name="list_fragment_debug" translatable="false">ListFragment - BusTO</string>
	<string name="mainSharedPreferences" translatable="false">it.reyboz.bustorino.preferences</string>
	<string name="databaseUpdatingPref" translatable="false">db_is_updating</string>
	- <!-- used in the buttons as generic title for "show what is near me" -->
	- <string name="nearby_message_home_card">Near me</string>
	+
	+ <!-- used as generic title for "show what is near me" -->
	+ <string name="near_me_title">Near me</string>
	<string name="nearby_stops_message">Nearby stops</string>
	<string name="nearby_arrivals_message">Nearby connections</string>
	<string name="app_version">App version</string>
	@@ -293,6 +294,7 @@

	<array name="first_screen_shown">
	<item>@string/nav_home_text</item>
	+ <item>@string/near_me_title</item>
	<item>@string/nav_favorites_text</item>
	<item>@string/nav_map_text</item>
	<item>@string/lines</item>

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