Use integer alpha value instead of factor for animation

Change-Id: I3099a7625e0176a1d2be42e58d6eb5fa95797bcb
diff --git a/java/res/values/attrs.xml b/java/res/values/attrs.xml
index d4a50b6..9abbc2f 100644
--- a/java/res/values/attrs.xml
+++ b/java/res/values/attrs.xml
@@ -139,7 +139,7 @@
             <enum name="alwaysDisplay" value="-1" />
         </attr>
         <attr name="delayBeforeFadeoutLangageOnSpacebar" format="integer" />
-        <attr name="finalFadeoutFactorOfLanguageOnSpacebar" format="float" />
+        <attr name="finalAlphaOfLanguageOnSpacebar" format="integer" />
         <!-- Key detection hysteresis distance. -->
         <attr name="keyHysteresisDistance" format="dimension" />
         <!-- Touch noise threshold time in millisecond -->
diff --git a/java/res/values/styles.xml b/java/res/values/styles.xml
index eb2f9bb..818b1c4 100644
--- a/java/res/values/styles.xml
+++ b/java/res/values/styles.xml
@@ -80,7 +80,7 @@
         <item name="showMoreKeysKeyboardAtTouchedPoint">@bool/config_show_more_keys_keyboard_at_touched_point</item>
         <item name="durationOfFadeoutLanguageOnSpacebar">200</item>
         <item name="delayBeforeFadeoutLangageOnSpacebar">1200</item>
-        <item name="finalFadeoutFactorOfLanguageOnSpacebar">0.5</item>
+        <item name="finalAlphaOfLanguageOnSpacebar">128</item>
     </style>
     <style
         name="LatinKeyboardView"