Change ScrollView to NestedScrollView for screen size page

To make sure the collapsing toolbar work as usual, we need to use
NestedScrollView instead of ScrollView in the screen size page.

Bug: 176896338
Test: manual test and visual verified
1) Navigate to Settings -> Display -> Display size
2) Change the size on the seekbar
3) Observe and check if the preview window can be scrolled

Change-Id: Ia5bb66ef63b9d9a7713cebddbf6ab6258ff82b8d

res/layout-sw300dp-land/screen_zoom_activity.xml

@@ -38,7 +38,7 @@
             android:padding="6dp" />
     </LinearLayout>
 
-    <ScrollView
+    <androidx.core.widget.NestedScrollView
             android:layout_width="0dp"
             android:layout_weight="1"
             android:layout_height="match_parent"
@@ -106,5 +106,5 @@
                 android:layout_marginBottom="16dp"
                 android:textAppearance="@*android:style/TextAppearance.DeviceDefault.Subhead" />
         </LinearLayout>
-    </ScrollView>
+    </androidx.core.widget.NestedScrollView>
 </LinearLayout>

res/layout/preview_seek_bar_view_pager.xml

@@ -25,7 +25,7 @@
     <androidx.viewpager.widget.ViewPager
         android:id="@+id/preview_pager"
         android:layout_width="match_parent"
-        android:layout_height="100dp"
+        android:layout_height="400dp"
         android:layout_weight="1"
         android:background="?android:attr/colorBackgroundFloating"
         android:contentDescription="@string/preview_pager_content_description" />

res/layout/screen_zoom_activity.xml

@@ -14,17 +14,18 @@
      limitations under the License.
 -->
 
-<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:fillViewport="true">
+<androidx.core.widget.NestedScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:fillViewport="true">
 
     <LinearLayout
         android:orientation="vertical"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content" >
+        android:layout_height="wrap_content">
 
-        <include layout="@layout/preview_seek_bar_view_pager" />
+        <include layout="@layout/preview_seek_bar_view_pager"/>
 
         <LinearLayout
             android:orientation="vertical"
@@ -40,7 +41,7 @@
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_gravity="center_horizontal"
-                android:padding="6dp" />
+                android:padding="6dp"/>
 
             <TextView
                 android:id="@+id/current_label"
@@ -49,7 +50,7 @@
                 android:layout_gravity="center_horizontal"
                 android:padding="6dp"
                 android:textAppearance="@android:style/TextAppearance.DeviceDefault.Widget.TextView"
-                android:elevation="2dp" />
+                android:elevation="2dp"/>
 
             <LinearLayout
                 android:layout_width="match_parent"
@@ -66,7 +67,7 @@
                     android:tintMode="src_in"
                     android:scaleType="center"
                     android:focusable="true"
-                    android:contentDescription="@string/screen_zoom_make_smaller_desc" />
+                    android:contentDescription="@string/screen_zoom_make_smaller_desc"/>
 
                 <com.android.settings.widget.LabeledSeekBar
                     android:id="@+id/seek_bar"
@@ -85,7 +86,7 @@
                     android:tintMode="src_in"
                     android:scaleType="center"
                     android:focusable="true"
-                    android:contentDescription="@string/screen_zoom_make_larger_desc" />
+                    android:contentDescription="@string/screen_zoom_make_larger_desc"/>
             </LinearLayout>
 
             <TextView
@@ -93,7 +94,7 @@
                 android:layout_height="wrap_content"
                 android:text="@string/screen_zoom_summary"
                 android:layout_marginBottom="16dp"
-                android:textAppearance="@*android:style/TextAppearance.DeviceDefault.Subhead" />
+                android:textAppearance="@*android:style/TextAppearance.DeviceDefault.Subhead"/>
         </LinearLayout>
     </LinearLayout>
-</ScrollView>
+</androidx.core.widget.NestedScrollView>

res/layout/screen_zoom_preview_1.xml

@@ -13,7 +13,8 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.core.widget.NestedScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
@@ -75,4 +76,4 @@
                 app:iconBackgroundColor="@color/message_icon_background_incoming" />
         </LinearLayout>
     </view>
-</ScrollView>
+</androidx.core.widget.NestedScrollView>

res/layout/screen_zoom_preview_settings.xml

@@ -14,7 +14,8 @@
      limitations under the License.
 -->
 
-<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.core.widget.NestedScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:fillViewport="true"
@@ -223,4 +224,4 @@
             </LinearLayout>
         </LinearLayout>
     </view>
-</ScrollView>
+</androidx.core.widget.NestedScrollView>