packages/SystemUI/res/anim/car_arrow_fade_in_rotate_down.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
/*
** Copyright 2018, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
**     http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
-->
<set xmlns:android="http://schemas.android.com/apk/res/android"
     android:ordering="together">
  <objectAnimator
      android:propertyName="rotation"
      android:duration="0"
      android:valueFrom="180"
      android:valueTo="0"
      android:interpolator="@android:interpolator/fast_out_slow_in" />
  <objectAnimator
      android:propertyName="alpha"
      android:valueFrom="0.0"
      android:valueTo="1.0"
      android:valueType="floatType"
      android:duration="300"
      android:interpolator="@android:interpolator/fast_out_slow_in" />
  <objectAnimator
      android:propertyName="scaleX"
      android:valueFrom="0.8"
      android:valueTo="1.0"
      android:valueType="floatType"
      android:duration="300"
      android:interpolator="@android:interpolator/fast_out_slow_in" />
  <objectAnimator
      android:propertyName="scaleY"
      android:valueFrom="0.8"
      android:valueTo="1.0"
      android:valueType="floatType"
      android:duration="300"
      android:interpolator="@android:interpolator/fast_out_slow_in" />
</set>