dxcgt_app / app / src / main / res / anim / activity_fade_in.xml

<?xml version="1.0" encoding="utf-8"?>
<alpha xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="300"
    android:fromAlpha="0"
    android:startOffset="300"
    android:toAlpha="1" >

</alpha>