Fixed accessibility navigation gesture sound volume

Bug: 5061527
Change-Id: I88728f7368a55ae7e6ca2ce6cfed6af42ffa03df
diff --git a/java/src/com/android/inputmethod/accessibility/AccessibleInputMethodServiceProxy.java b/java/src/com/android/inputmethod/accessibility/AccessibleInputMethodServiceProxy.java
index 89adc15..4ab9cb8 100644
--- a/java/src/com/android/inputmethod/accessibility/AccessibleInputMethodServiceProxy.java
+++ b/java/src/com/android/inputmethod/accessibility/AccessibleInputMethodServiceProxy.java
@@ -47,6 +47,8 @@
      */
     private static final long VIBRATE_KEY_CLICK = 50;
 
+    private static final float FX_VOLUME = -1.0f;
+
     private InputMethodService mInputMethod;
     private Vibrator mVibrator;
     private AudioManager mAudioManager;
@@ -143,7 +145,7 @@
      */
     private void sendDownUpKeyEvents(int keyCode) {
         mVibrator.vibrate(VIBRATE_KEY_CLICK);
-        mAudioManager.playSoundEffect(AudioManager.FX_KEY_CLICK);
+        mAudioManager.playSoundEffect(AudioManager.FX_KEYPRESS_STANDARD, FX_VOLUME);
         mInputMethod.sendDownUpKeyEvents(keyCode);
     }