commit b9e799359669f208ec4bd734a05814016e7d44c7
Author: Fabio Mazza <fab4mazz@gmail.com>
Date:   Thu May 21 17:53:04 2026 +0200

    Fix floating action button

diff --git a/app/src/main/java/it/reyboz/bustorino/ActivityPrincipal.java b/app/src/main/java/it/reyboz/bustorino/ActivityPrincipal.java
index 449c60a..e90e6df 100644
--- a/app/src/main/java/it/reyboz/bustorino/ActivityPrincipal.java
+++ b/app/src/main/java/it/reyboz/bustorino/ActivityPrincipal.java
@@ -534,6 +534,8 @@ public class ActivityPrincipal extends GeneralActivity implements FragmentListen
         }
     }
     private void updateShowingFragmentKindInternal(@NonNull FragmentKind newKind){
+        if(BuildConfig.DEBUG)
+            Log.d(DEBUG_TAG, "Updating fragment kind, new: "+newKind+", current: "+showingFragmentKind);
         if(showingFragmentKind == null){
             showingFragmentKind = newKind;
             showingMainFragmentFromOther = false;
@@ -606,7 +608,7 @@ public class ActivityPrincipal extends GeneralActivity implements FragmentListen
         var fragment = fraMan.findFragmentByTag(MainScreenFragment.FRAGMENT_TAG);
         if(fragment instanceof MainScreenFragment mainFrag){
             if(!mainFrag.isVisible()){
-                showMainFragment(fraMan, mainFrag, false);
+                showMainFragment(fraMan, mainFrag, addToBackStack);
             }
             mainFrag.showButtonsFragmentIfNotNearby(addToBackStack);
         } else{
@@ -654,7 +656,6 @@ public class ActivityPrincipal extends GeneralActivity implements FragmentListen
         ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE)
                 .setReorderingAllowed(false);
         ft.commit();
-
     }
 
     private void showLinesFragment(@NonNull FragmentManager fragmentManager,  boolean addToBackStack, @Nullable Bundle fragArgs){
@@ -689,7 +690,10 @@ public class ActivityPrincipal extends GeneralActivity implements FragmentListen
 
     @Override
     public void showFloatingActionButton(boolean yes) {
-        //TODO
+        var frag =  getMainFragmentIfVisible();
+        if(frag!=null){
+            frag.showFloatingActionButton(yes);
+        }
     }
 
     /*
@@ -790,18 +794,16 @@ public class ActivityPrincipal extends GeneralActivity implements FragmentListen
     @Override
     public void openLineFromStop(String routeGtfsId, @Nullable String stopIDFrom){
 
-        readyGUIfor(FragmentKind.LINES);
-
         FragmentTransaction tr = getSupportFragmentManager().beginTransaction();
         tr.replace(R.id.mainActContentFrame, LinesDetailFragment.class,
                 LinesDetailFragment.Companion.makeArgs(routeGtfsId, stopIDFrom));
         tr.addToBackStack("LineFromStop-"+routeGtfsId);
         tr.commit();
+
     }
 
     @Override
     public void openLineFromVehicle(String routeGtfsId, @Nullable String optionalPatternId, @Nullable Bundle args) {
-        readyGUIfor(FragmentKind.LINES);
 
         FragmentTransaction tr = getSupportFragmentManager().beginTransaction();
         tr.replace(R.id.mainActContentFrame, LinesDetailFragment.class,
@@ -816,7 +818,7 @@ public class ActivityPrincipal extends GeneralActivity implements FragmentListen
         var fragment = fraMan.findFragmentByTag(MainScreenFragment.FRAGMENT_TAG);
         if(fragment instanceof MainScreenFragment mainFrag){
             if(!mainFrag.isVisible()){
-                showMainFragment(fraMan, mainFrag, false);
+                showMainFragment(fraMan, mainFrag, true);
             }
             mainFrag.openNearbyStopsFragment();
         } else{
diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/MainScreenFragment.java b/app/src/main/java/it/reyboz/bustorino/fragments/MainScreenFragment.java
index 5d90339..1282296 100644
--- a/app/src/main/java/it/reyboz/bustorino/fragments/MainScreenFragment.java
+++ b/app/src/main/java/it/reyboz/bustorino/fragments/MainScreenFragment.java
@@ -613,7 +613,7 @@ public class MainScreenFragment extends BarcodeFragment implements  FragmentList
             pendingStopID = null;
         }
 
-        mListener.readyGUIfor(FragmentKind.MAIN_SCREEN_FRAGMENT);
+        //mListener.readyGUIfor(FragmentKind.MAIN_SCREEN_FRAGMENT);
 
         //fragmentHelper.setBlockAllActivities(false);
 
@@ -778,7 +778,11 @@ public class MainScreenFragment extends BarcodeFragment implements  FragmentList
 
     @Override
     public void showFloatingActionButton(boolean yes) {
-        mListener.showFloatingActionButton(yes);
+        //mListener.showFloatingActionButton(yes);
+        if(yes)
+            floatingActionButton.setVisibility(View.VISIBLE);
+        else
+            floatingActionButton.setVisibility(View.GONE);
     }
 
     /**