Added search for Contacts/Allowlist tab

app/src/main/res/drawable/search_background.xml

@@ -0,0 +1,5 @@
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="?attr/colorSurfaceVariant" />
+    <corners android:radius="50dp" />
+</shape>

app/src/main/res/layout/fragment_contacts.xml

@@ -6,11 +6,25 @@
     android:layout_height="match_parent"
     android:padding="16dp">
 
+    <androidx.appcompat.widget.SearchView
+        android:id="@+id/contactSearch"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="8dp"
+        android:background="@drawable/search_background"
+        android:iconifiedByDefault="false"
+        android:queryHint="@string/contact_search"
+        android:layout_marginTop="8dp"
+        android:layout_marginHorizontal="4dp"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent" />
+
     <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/contactRecycler"
         android:layout_width="0dp"
         android:layout_height="0dp"
-        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/contactSearch"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintEnd_toEndOf="parent"

app/src/main/res/values/colors.xml

@@ -14,4 +14,6 @@
     <color name="colorOnSecondary">#000000</color>
 
     <color name="launcher_background">@color/colorPrimary</color>
+
+    <color name="colorSurfaceVariant">#2B3542</color>
 </resources>

app/src/main/res/values/strings.xml

@@ -16,6 +16,7 @@
     <string name="destination_whatsapp">WhatsApp</string>
     <string name="redirection_delay_description">The delay before a call will be redirected.</string>
     <string name="services_desc">Here you can enable or disable redirection to individual services and change their priority by dragging them. Redirection will be handled in order from top to bottom.</string>
+    <string name="contact_search">Filter contacts</string>
     <string name="popup_position">Popup position</string>
     <string name="activate_description">To start, grant the required permissions by tapping the Activate button.</string>
     <string name="activate">Activate</string>

app/src/main/res/values/themes.xml

@@ -12,5 +12,6 @@
         <item name="colorOnSurface">@color/black</item>
         <item name="textAppearanceBodyMedium">@style/TextAppearance.Material3.BodyMedium</item>
         <item name="colorSurfaceContainerLowest">?attr/colorSurfaceContainerLowest</item>
+        <item name="colorSurfaceVariant">@color/colorSurfaceVariant</item>
     </style>
 </resources>