commit ec77ec48d119b51812212b6c81db4479e247d7d6
Author: Fabio Mazza <fab4mazz@gmail.com>
Date:   Tue May 19 20:28:31 2026 +0200

    Replace layout with ConstraintLayout

diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/BarcodeFragment.kt b/app/src/main/java/it/reyboz/bustorino/fragments/BarcodeFragment.kt
index cd37b04..199a9e2 100644
--- a/app/src/main/java/it/reyboz/bustorino/fragments/BarcodeFragment.kt
+++ b/app/src/main/java/it/reyboz/bustorino/fragments/BarcodeFragment.kt
@@ -11,6 +11,7 @@ import it.reyboz.bustorino.middleware.BarcodeScanContract
 import it.reyboz.bustorino.middleware.BarcodeScanOptions
 import it.reyboz.bustorino.middleware.BarcodeScanUtils
 
+//TODO: This might be probably implemented as interface
 abstract class BarcodeFragment : ScreenBaseFragment(){
 
     private val barcodeLauncher = registerForActivityResult(BarcodeScanContract(), ActivityResultCallback {
diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/ButtonsFragment.kt b/app/src/main/java/it/reyboz/bustorino/fragments/ButtonsFragment.kt
index 07b8f0e..662c372 100644
--- a/app/src/main/java/it/reyboz/bustorino/fragments/ButtonsFragment.kt
+++ b/app/src/main/java/it/reyboz/bustorino/fragments/ButtonsFragment.kt
@@ -52,7 +52,7 @@ class ButtonsFragment : BarcodeFragment() {
             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),
             CardMenuItem(CardAction.SETTINGS, getString(R.string.action_settings), R.drawable.ic_baseline_settings_24),
-            CardMenuItem(CardAction.QR_SCAN, getString(R.string.scan_qr_code_stop), R.drawable.qrcode_button_default)
+            CardMenuItem(CardAction.QR_SCAN, getString(R.string.scan_qr_code_stop), R.drawable.qr_code_scan)
         )
         gridLayout = root.findViewById(R.id.homeGridLayout)
 
diff --git a/app/src/main/res/layout/fragment_main_screen.xml b/app/src/main/res/layout/fragment_main_screen.xml
index 8e450a1..b2ab7c6 100644
--- a/app/src/main/res/layout/fragment_main_screen.xml
+++ b/app/src/main/res/layout/fragment_main_screen.xml
@@ -1,38 +1,47 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
                 xmlns:tools="http://schemas.android.com/tools"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent" xmlns:app="http://schemas.android.com/apk/res-auto"
                 tools:context=".fragments.MainScreenFragment"
                 android:paddingTop="10dip"
 >
-    >
     <ImageButton
             android:id="@+id/QRButton"
             style="?android:attr/borderlessButtonStyle"
             android:layout_width="40dip"
             android:layout_height="40dip"
-            android:layout_alignBottom="@+id/searchButton"
             android:layout_marginStart="16dp"
             android:background="@drawable/qrcode_button_custom"
-            android:contentDescription="@string/qrcode"
-        />
+            android:contentDescription="@string/scan_qr_code_stop"
+            android:scaleType="fitCenter"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+    />
+    <androidx.constraintlayout.widget.Guideline
+            android:id="@+id/leftGuide"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            app:layout_constraintStart_toEndOf="@id/QRButton"
+    />
 
     <EditText
             android:id="@+id/busStopSearchByIDEditText"
-            android:layout_width="wrap_content"
+            android:layout_width="0dp"
             android:layout_height="wrap_content"
-            android:layout_marginEnd="5dp"
-            android:layout_marginLeft="5dip"
-            android:layout_marginRight="5dip"
-            android:layout_toEndOf="@+id/QRButton"
-            android:layout_toStartOf="@+id/searchButton"
+            android:layout_marginEnd="10dp"
+            android:layout_marginStart="10dp"
             android:ems="10"
             android:hint="@string/insert_bus_stop_number"
             android:imeOptions="actionSearch"
+
             android:inputType="number"
             android:selectAllOnFocus="true"
             android:singleLine="true"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintStart_toStartOf="@id/leftGuide"
+            app:layout_constraintEnd_toEndOf="@id/rightGuide"
     >
     </EditText>
 
@@ -40,33 +49,36 @@
     android:layout_alignParentStart="true"-->
     <EditText
         android:id="@+id/busStopSearchByNameEditText"
-        android:layout_width="wrap_content"
+        android:layout_width="0dp"
         android:layout_height="wrap_content"
-        android:layout_marginEnd="5dp"
-        android:layout_marginLeft="5dip"
-        android:layout_marginRight="5dip"
-        android:layout_toEndOf="@+id/QRButton"
-        android:layout_toLeftOf="@+id/searchButton"
-        android:layout_toRightOf="@+id/QRButton"
-        android:layout_toStartOf="@+id/searchButton"
+        android:layout_marginEnd="10dp"
+        android:layout_marginStart="10dp"
         android:inputType="text"
         android:ems="10"
         android:hint="@string/insert_bus_stop_name"
         android:imeOptions="actionSearch"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintStart_toStartOf="@id/leftGuide"
+        app:layout_constraintEnd_toEndOf="@id/rightGuide"
         android:singleLine="true"
         android:visibility="gone">
     </EditText>
-
+    <androidx.constraintlayout.widget.Guideline
+            android:id="@+id/rightGuide"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            app:layout_constraintEnd_toStartOf="@id/searchButton"
+    />
     <ImageButton
             android:id="@+id/searchButton"
             style="?android:attr/borderlessButtonStyle"
             android:layout_width="40dip"
             android:layout_height="40dip"
-            android:layout_alignParentEnd="true"
-            android:layout_alignParentRight="true"
             android:layout_alignTop="@+id/busStopSearchByIDEditText"
             android:layout_marginEnd="16dp"
-            android:layout_marginRight="16dp"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
             android:background="@drawable/search_button_custom"
             android:contentDescription="@string/search"
             />
@@ -76,30 +88,32 @@
             style="?android:attr/progressBarStyleHorizontal"
             android:layout_width="match_parent"
             android:layout_height="8dp"
-            android:layout_alignParentEnd="true"
-            android:layout_alignParentStart="true"
             android:layout_below="@+id/QRButton"
             android:layout_marginTop="3dp"
             android:layout_marginEnd="10dp"
             android:layout_marginStart="10dp"
             android:indeterminateOnly="true"
             android:minWidth="10dp"
-            android:visibility="gone" />
-
-
+            android:visibility="gone"
+            app:layout_constraintTop_toBottomOf="@id/searchButton"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+    />
 
 
     <androidx.coordinatorlayout.widget.CoordinatorLayout
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:id="@+id/coord_layout"
-            android:layout_alignParentBottom="true"
-            android:layout_alignParentEnd="true"
-            android:layout_alignParentRight="true"
             android:layout_gravity="bottom|end"
             android:layout_below="@+id/searchButton"
-            android:layout_marginTop="5dp"
-
+            android:layout_marginTop="8dp"
+            app:layout_constraintTop_toBottomOf="@id/searchButton"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:flow_verticalBias="0.0"
+            app:layout_constraintVertical_bias="0.0"
     >
         <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
                 android:id="@+id/listRefreshLayout"
@@ -128,11 +142,11 @@
                 android:layout_gravity="bottom|end"
                 android:layout_margin="13dp"
                 android:src="@drawable/alphabetical"
-                fabSize="normal"
-                backgroundTint="@color/teal_500"
-                rippleColor="@color/teal_300"
-                elevation="13dp"
+                app:fabSize="normal"
+                app:backgroundTint="@color/teal_500"
+                app:rippleColor="@color/teal_300"
+                app:elevation="13dp"
 
         />
     </androidx.coordinatorlayout.widget.CoordinatorLayout>
-</RelativeLayout>
\ No newline at end of file
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file