Add showing suggestion only on portrait mode and fixing the state of suggestion strip

Change-Id: I7babd1400a3516c87506a3ea4bd46ddaf89e19b4
diff --git a/java/res/xml/prefs.xml b/java/res/xml/prefs.xml
index af1396c..2ca1af9 100644
--- a/java/res/xml/prefs.xml
+++ b/java/res/xml/prefs.xml
@@ -90,12 +90,14 @@
             android:defaultValue="true"
             />
 
-        <CheckBoxPreference
-            android:key="show_suggestions"
-            android:title="@string/show_suggestions"
-            android:summary="@string/show_suggestions_summary"
+        <ListPreference
+            android:key="show_suggestions_setting"
+            android:summary="@string/prefs_show_suggestions_summary"
+            android:title="@string/prefs_show_suggestions"
             android:persistent="true"
-            android:defaultValue="true"
+            android:entryValues="@array/prefs_suggestion_visibility_values"
+            android:entries="@array/prefs_suggestion_visibilities"
+            android:defaultValue="@string/prefs_suggestion_visibility_default_value"
             />
 
         <ListPreference