packages/overlays/IconPackKaiSystemUIOverlay/res/drawable/ic_volume_expand_animation.xml

<!--
/**
 * Copyright (C) 2020, 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.
 */
-->
<animated-vector xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:aapt="http://schemas.android.com/aapt">
    <aapt:attr name="android:drawable">
        <vector
            android:width="24dp"
            android:height="24dp"
            android:viewportWidth="24"
            android:viewportHeight="24">
            <group android:name="_R_G">
                <group android:name="_R_G_L_0_G">
                    <path
                        android:name="_R_G_L_0_G_D_0_P_0"
                        android:pathData=" M4.53 8.44 C4.53,8.44 11.98,16 11.98,16 C11.98,16 19.48,8.44 19.48,8.44 "
                        android:strokeWidth="1.5"
                        android:strokeAlpha="1"
                        android:strokeColor="#000000" />
                </group>
            </group>
            <group android:name="time_group" />
        </vector>
    </aapt:attr>
    <target android:name="_R_G_L_0_G_D_0_P_0">
        <aapt:attr name="android:animation">
            <set android:ordering="together">
                <objectAnimator
                    android:duration="250"
                    android:propertyName="pathData"
                    android:startOffset="0"
                    android:valueFrom="M4.53 8.44 C4.53,8.44 11.98,16 11.98,16 C11.98,16 19.48,8.44 19.48,8.44 "
                    android:valueTo="M4.54 15.47 C4.54,15.47 12.01,8 12.01,8 C12.01,8 19.48,15.47 19.48,15.47 "
                    android:valueType="pathType">
                    <aapt:attr name="android:interpolator">
                        <pathInterpolator android:pathData="M 0.0,0.0 c0.4,0 0.2,1 1.0,1.0" />
                    </aapt:attr>
                </objectAnimator>
            </set>
        </aapt:attr>
    </target>
    <target android:name="time_group">
        <aapt:attr name="android:animation">
            <set android:ordering="together">
                <objectAnimator
                    android:duration="267"
                    android:propertyName="translateX"
                    android:startOffset="0"
                    android:valueFrom="0"
                    android:valueTo="1"
                    android:valueType="floatType" />
            </set>
        </aapt:attr>
    </target>
</animated-vector>