app/src/main/res/layout/menu_bar.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/menu_bar"
android:layout_width="match_parent"
android:layout_height="50dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
android:background="@color/Black">
<!-- Icons container -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="horizontal"
android:baselineAligned="false">
<!-- Settings button -->
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical"
android:layout_weight="1">
<ImageButton
android:id="@+id/menu_bar_settings"
style="@style/MenuBarButton"
android:contentDescription="@string/description_settings_button"
app:srcCompat="@drawable/menu_icons_settings" />
<ImageView
android:id="@+id/menu_bar_settings_pointer"
app:srcCompat="@drawable/menu_pointer"
android:contentDescription="@string/description_menu_pointer"
android:layout_width="15dp"
android:layout_height="10dp" />
</LinearLayout>
<!-- Gallery button -->
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical"
android:layout_weight="1">
<ImageButton
android:id="@+id/menu_bar_gallery"
style="@style/MenuBarButton"
android:contentDescription="@string/description_gallery_button"
app:srcCompat="@drawable/menu_icons_gallery" />
<ImageView
android:id="@+id/menu_bar_gallery_pointer"
app:srcCompat="@drawable/menu_pointer"
android:contentDescription="@string/description_menu_pointer"
android:layout_width="15dp"
android:layout_height="10dp" />
</LinearLayout>
<!-- Camera button -->
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical"
android:layout_weight="1">
<ImageButton
android:id="@+id/menu_bar_camera"
style="@style/MenuBarButton"
android:contentDescription="@string/description_camera_button"
app:srcCompat="@drawable/menu_icons_camera" />
<ImageView
android:id="@+id/menu_bar_camera_pointer"
app:srcCompat="@drawable/menu_pointer"
android:contentDescription="@string/description_menu_pointer"
android:layout_width="15dp"
android:layout_height="10dp" />
</LinearLayout>
<!-- Map button -->
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical"
android:layout_weight="1">
<ImageButton
android:id="@+id/menu_bar_map"
style="@style/MenuBarButton"
android:contentDescription="@string/description_map_button"
app:srcCompat="@drawable/menu_icons_map" />
<ImageView
android:id="@+id/menu_bar_map_pointer"
app:srcCompat="@drawable/menu_pointer"
android:contentDescription="@string/description_menu_pointer"
android:layout_width="15dp"
android:layout_height="10dp" />
</LinearLayout>
<!-- Social button -->
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical"
android:layout_weight="1">
<ImageButton
android:id="@+id/menu_bar_social"
style="@style/MenuBarButton"
android:contentDescription="@string/description_social_button"
app:srcCompat="@drawable/menu_icons_social" />
<ImageView
android:id="@+id/menu_bar_social_pointer"
app:srcCompat="@drawable/menu_pointer"
android:contentDescription="@string/description_menu_pointer"
android:layout_width="15dp"
android:layout_height="10dp" />
</LinearLayout>
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>