car-ui-lib/car-ui-lib/src/main/res/layout/car_ui_toolbar_search_view.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright 2019 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.
  -->

<merge
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <EditText
        android:id="@+id/car_ui_toolbar_search_bar"
        android:layout_height="match_parent"
        android:layout_width="match_parent"
        android:hint="@string/car_ui_toolbar_default_search_hint"
        android:textColorHint="@color/car_ui_toolbar_search_hint_text_color"
        android:inputType="text"
        android:singleLine="true"
        android:imeOptions="actionSearch"
        style="@style/Widget.CarUi.Toolbar.Search.EditText"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"/>

    <!-- This constraintLayout is to provide a background for the ripples to draw on, so
         they don't get drawn underneath the EditText's background -->
    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@android:color/transparent">
        <FrameLayout
            android:layout_width="@dimen/car_ui_toolbar_search_search_icon_container_width"
            android:layout_height="match_parent"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintStart_toStartOf="parent">
            <ImageView
                android:id="@+id/car_ui_toolbar_search_icon"
                android:layout_width="@dimen/car_ui_toolbar_search_search_icon_size"
                android:layout_height="@dimen/car_ui_toolbar_search_search_icon_size"
                android:layout_gravity="center"
                android:src="@drawable/car_ui_toolbar_search_search_icon"
                android:scaleType="fitXY"
                style="@style/Widget.CarUi.Toolbar.Search.SearchIcon"/>
        </FrameLayout>

        <FrameLayout
            android:id="@+id/car_ui_toolbar_search_close"
            android:layout_width="@dimen/car_ui_toolbar_search_close_icon_container_width"
            android:layout_height="match_parent"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent">
            <ImageView
                android:layout_width="@dimen/car_ui_toolbar_search_close_icon_size"
                android:layout_height="@dimen/car_ui_toolbar_search_close_icon_size"
                android:layout_gravity="center"
                android:src="@drawable/car_ui_toolbar_search_close_icon"
                android:scaleType="fitXY"
                style="@style/Widget.CarUi.Toolbar.Search.CloseIcon"/>
        </FrameLayout>
    </androidx.constraintlayout.widget.ConstraintLayout>
</merge>