Remove loading spinner from Premium SMS access

The loading spinner in the page is displayed by default, regardless of
whether or not how many apps are in the page. This change is trying to
remove the loading spinner from the page since this page doesn't have
many apps in it.

Bug: 222441974
Test: visual verify
Change-Id: I9b2b031122e6b6d521466ccf53e39185cfcab687

res/values/dimens.xml

@@ -443,6 +443,7 @@
 
     <!-- Text padding for EmptyTextSettings -->
     <dimen name="empty_text_padding">24dp</dimen>
+    <dimen name="empty_text_layout_height">450dp</dimen>
 
     <!--  Choose SIM Activity dimens  -->
     <dimen name="subtitle_bottom_padding">24dp</dimen>

src/com/android/settings/applications/specialaccess/premiumsms/PremiumSmsAccess.java

@@ -68,7 +68,7 @@ public class PremiumSmsAccess extends EmptyTextSettings
     @Override
     public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
-        setLoading(true, false);
+        setEmptyText(R.string.premium_sms_none);
     }
 
     @Override
@@ -138,8 +138,6 @@ public class PremiumSmsAccess extends EmptyTextSettings
 
     private void updatePrefs(ArrayList<AppEntry> apps) {
         if (apps == null) return;
-        setEmptyText(R.string.premium_sms_none);
-        setLoading(false, true);
         final PreferenceScreen screen = getPreferenceScreen();
         screen.removeAll();
         screen.setOrderingAsAdded(true);

src/com/android/settings/widget/EmptyTextSettings.java

@@ -43,8 +43,10 @@ public abstract class EmptyTextSettings extends SettingsPreferenceFragment {
         TypedValue value = new TypedValue();
         getContext().getTheme().resolveAttribute(android.R.attr.textAppearanceMedium, value, true);
         mEmpty.setTextAppearance(value.resourceId);
+        final int layoutHeight = getContext().getResources()
+                .getDimensionPixelSize(R.dimen.empty_text_layout_height);
         ((ViewGroup) view.findViewById(android.R.id.list_container)).addView(mEmpty,
-                new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
+                new LayoutParams(LayoutParams.MATCH_PARENT, layoutHeight));
         setEmptyView(mEmpty);
     }