hostage/res/anim/in_right_to_left.xml

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

    <translate
        android:duration="250"
        android:fromXDelta="100%"
        android:toXDelta="0" />

</set>