Don't cache resource value that depends on orientation

Bug: 5794655
Change-Id: Ib324366c772e20bb54aba63c2f4540dc0f9de515
diff --git a/java/src/com/android/inputmethod/latin/LatinIME.java b/java/src/com/android/inputmethod/latin/LatinIME.java
index 59de798..e60f550 100644
--- a/java/src/com/android/inputmethod/latin/LatinIME.java
+++ b/java/src/com/android/inputmethod/latin/LatinIME.java
@@ -1019,7 +1019,10 @@
 
     @Override
     public boolean onEvaluateFullscreenMode() {
-        return super.onEvaluateFullscreenMode() && mSettingsValues.mUseFullScreenMode;
+        // Reread resource value here, because this method is called by framework anytime as needed.
+        final boolean isFullscreenModeAllowed =
+                mSettingsValues.isFullscreenModeAllowed(getResources());
+        return super.onEvaluateFullscreenMode() && isFullscreenModeAllowed;
     }
 
     @Override
diff --git a/java/src/com/android/inputmethod/latin/SettingsValues.java b/java/src/com/android/inputmethod/latin/SettingsValues.java
index 83b27f7..0ae28d3 100644
--- a/java/src/com/android/inputmethod/latin/SettingsValues.java
+++ b/java/src/com/android/inputmethod/latin/SettingsValues.java
@@ -41,7 +41,6 @@
     private final String mSymbolsExcludedFromWordSeparators;
     public final String mWordSeparators;
     public final CharSequence mHintToSaveText;
-    public final boolean mUseFullScreenMode;
 
     // From preferences, in the same order as xml/prefs.xml:
     public final boolean mAutoCap;
@@ -107,7 +106,6 @@
         mWordSeparators = createWordSeparators(mMagicSpaceStrippers, mMagicSpaceSwappers,
                 mSymbolsExcludedFromWordSeparators, res);
         mHintToSaveText = context.getText(R.string.hint_add_to_dictionary);
-        mUseFullScreenMode = res.getBoolean(R.bool.config_use_fullscreen_mode);
 
         // Get the settings preferences
         mAutoCap = prefs.getBoolean(Settings.PREF_AUTO_CAP, true);
@@ -294,6 +292,10 @@
         return mVoiceKeyOnMain;
     }
 
+    public boolean isFullscreenModeAllowed(Resources res) {
+        return res.getBoolean(R.bool.config_use_fullscreen_mode);
+    }
+
     // Accessed from the settings interface, hence public
     public static float getCurrentKeypressSoundVolume(final SharedPreferences sp,
                 final Resources res) {