Android Depressed Button Style

customized_state_animator.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_enabled="true" android:state_pressed="true">
        <set>
            <objectAnimator android:duration="100" android:propertyName="translationZ" android:valueTo="4dp" android:valueType="floatType" />
        </set>
    </item>
    <!-- base state -->
    <item android:state_enabled="true">
        <set>
            <objectAnimator android:duration="100" android:propertyName="translationZ" android:startDelay="100" android:valueTo="0" android:valueType="floatType" />
        </set>
    </item>
    <item>
        <set>
            <objectAnimator android:duration="0" android:propertyName="translationZ" android:valueTo="0" android:valueType="floatType" />
        </set>
    </item>
</selector>