Make transformer demo configuration options scrollable.

On devices with a smaller screen / low resolution not all
options fit, so scrolling is needed.

PiperOrigin-RevId: 425635224

demos/transformer/build.gradle

@@ -48,6 +48,7 @@ android {
 }
 }
 
 
 dependencies {
 dependencies {
+    implementation 'androidx.core:core:' + androidxCoreVersion
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
     implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     implementation 'androidx.appcompat:appcompat:' + androidxAppCompatVersion
     implementation 'androidx.appcompat:appcompat:' + androidxAppCompatVersion

demos/transformer/src/main/res/layout/configuration_activity.xml

@@ -58,19 +58,25 @@
     app:layout_constraintEnd_toEndOf="parent"
     app:layout_constraintEnd_toEndOf="parent"
     app:layout_constraintStart_toStartOf="parent"
     app:layout_constraintStart_toStartOf="parent"
     app:layout_constraintTop_toBottomOf="@+id/choose_file_button" />
     app:layout_constraintTop_toBottomOf="@+id/choose_file_button" />
+  <androidx.core.widget.NestedScrollView
+    android:layout_width="fill_parent"
+    android:layout_height="0dp"
+    app:layout_constraintEnd_toEndOf="parent"
+    app:layout_constraintStart_toStartOf="parent"
+    app:layout_constraintTop_toBottomOf="@+id/chosen_file_text_view"
+    app:layout_constraintBottom_toTopOf="@+id/transform_button">
     <TableLayout
     <TableLayout
-    android:layout_width="wrap_content"
+      android:layout_width="fill_parent"
       android:layout_height="wrap_content"
       android:layout_height="wrap_content"
       android:stretchColumns="1"
       android:stretchColumns="1"
       android:layout_marginTop="32dp"
       android:layout_marginTop="32dp"
-    android:layout_marginStart="32dp"
-    android:layout_marginEnd="32dp"
       android:measureWithLargestChild="true"
       android:measureWithLargestChild="true"
       android:paddingLeft="24dp"
       android:paddingLeft="24dp"
       android:paddingRight="12dp"
       android:paddingRight="12dp"
       app:layout_constraintEnd_toEndOf="parent"
       app:layout_constraintEnd_toEndOf="parent"
       app:layout_constraintStart_toStartOf="parent"
       app:layout_constraintStart_toStartOf="parent"
-    app:layout_constraintTop_toBottomOf="@+id/chosen_file_text_view" >
+      app:layout_constraintTop_toTopOf="parent"
+      app:layout_constraintBottom_toBottomOf="parent">
       <TableRow
       <TableRow
         android:layout_weight="1"
         android:layout_weight="1"
         android:gravity="center_vertical" >
         android:gravity="center_vertical" >
@@ -175,6 +181,7 @@
           android:layout_gravity="right" />
           android:layout_gravity="right" />
       </TableRow>
       </TableRow>
     </TableLayout>
     </TableLayout>
+  </androidx.core.widget.NestedScrollView>
   <Button
   <Button
     android:id="@+id/transform_button"
     android:id="@+id/transform_button"
     android:layout_width="wrap_content"
     android:layout_width="wrap_content"