btn_emote_selector.xml

<?xml version="1.0" encoding="utf-8"?>
<selector
  xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true" android:drawable="@drawable/bg_chat_emote_selector" />
    <item android:state_focused="true" android:drawable="@drawable/bg_chat_emote_selector" />
</selector>