OASystem_Android/app/src/main/res/anim/slide_left_out.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">

    <translate
        android:duration="200"
        android:fromXDelta="0%p"
        android:toXDelta="-100%p" />

    <alpha
        android:duration="200"
        android:fromAlpha="1.0"
        android:toAlpha="0.5" />

</set>