<?xml version="1.0" encoding="utf-8"?> <alpha xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:interpolator="@android:interpolator/decelerate_quad" android:duration="@integer/config_tooltipAnimTime" android:fromAlpha="0" android:toAlpha="1"/>Download file