packages/SystemUI/res/layout/ongoing_call_chip.xml

<!--
  ~ Copyright (C) 2021 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.
  -->
<!-- Have the wrapper frame layout match the parent height so that we get a larger touch area for
     the chip. -->
<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/ongoing_call_chip"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="center_vertical|start"
>
    <LinearLayout
        android:id="@+id/ongoing_call_chip_background"
        android:layout_width="wrap_content"
        android:layout_height="@dimen/ongoing_appops_chip_height"
        android:layout_gravity="center_vertical"
        android:gravity="center"
        android:background="@drawable/ongoing_call_chip_bg"
        android:paddingStart="@dimen/ongoing_call_chip_side_padding"
        android:paddingEnd="@dimen/ongoing_call_chip_side_padding"
        android:contentDescription="@string/ongoing_phone_call_content_description"
        android:minWidth="@dimen/min_clickable_item_size"
    >

        <ImageView
            android:src="@*android:drawable/ic_phone"
            android:layout_width="@dimen/ongoing_call_chip_icon_size"
            android:layout_height="@dimen/ongoing_call_chip_icon_size"
            android:tint="?android:attr/colorPrimary"
        />

        <com.android.systemui.statusbar.phone.ongoingcall.OngoingCallChronometer
            android:id="@+id/ongoing_call_chip_time"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:singleLine="true"
            android:gravity="center|start"
            android:paddingStart="@dimen/ongoing_call_chip_icon_text_padding"
            android:textAppearance="@android:style/TextAppearance.Material.Small"
            android:fontFamily="@*android:string/config_headlineFontFamily"
            android:textColor="?android:attr/colorPrimary"
        />

    </LinearLayout>
</FrameLayout>