tests/framework/base/windowmanager/app/res/anim/edge_extension_bottom_window_animation.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright (C) 2022 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:shareInterpolator="false">

    <alpha
        android:fromAlpha="1.0"
        android:toAlpha="1.0"
        android:fillEnabled="true"
        android:fillBefore="true"
        android:fillAfter="true"
        android:interpolator="@android:interpolator/linear"
        android:startOffset="0"
        android:duration="5000" />

    <scale
        android:fromXScale="1.0"
        android:toXScale="1.0"
        android:fromYScale="0.5"
        android:toYScale="0.5"
        android:interpolator="@android:interpolator/linear"
        android:startOffset="0"
        android:duration="5000" />

    <extend
        android:fromExtendLeft="0"
        android:fromExtendTop="0"
        android:fromExtendRight="0"
        android:fromExtendBottom="100%"
        android:toExtendLeft="0"
        android:toExtendTop="0"
        android:toExtendRight="0"
        android:toExtendBottom="100%"
        android:interpolator="@android:interpolator/linear"
        android:startOffset="0"
        android:duration="5000" />

</set>