am f145fff0: Merge "Fix NPE when pressing ALT key" into lmp-dev

* commit 'f145fff0855cedb83551021c7682e05e1783f5b2':
  Fix NPE when pressing ALT key
diff --git a/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java b/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
index 140e768..77cdf49 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
@@ -261,6 +261,9 @@
     }
 
     public void onToggleEmojiKeyboard() {
+        if (mKeyboardLayoutSet == null) {
+            return;
+        }
         if (isShowingEmojiPalettes()) {
             setAlphabetKeyboard();
         } else {