car-ui-lib/res/layout/car_ui_toolbar.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.
-->
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="@dimen/car_ui_toolbar_first_row_height"
    android:id="@+id/car_ui_toolbar_background"
    style="@style/Widget.CarUi.Toolbar.Container">

    <!-- When the user finishes searching, we call clearFocus() on the editText in the search bar.
         clearFocus() will actually send the focus to the first focusable thing in the layout.
         If that focusable thing is still the search bar it will just reselect it, and the user won't
         be able to deselect. So make a focusable view here to guarantee that we can clear the focus -->
    <View
        android:layout_width="1dp"
        android:layout_height="1dp"
        android:focusable="true"
        android:focusableInTouchMode="true"/>

    <androidx.constraintlayout.widget.Guideline
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/car_ui_toolbar_start_guideline"
        app:layout_constraintGuide_begin="@dimen/car_ui_toolbar_start_inset"
        android:orientation="vertical"/>

    <androidx.constraintlayout.widget.Guideline
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/car_ui_toolbar_top_guideline"
        app:layout_constraintGuide_begin="@dimen/car_ui_toolbar_top_inset"
        android:orientation="horizontal"/>

    <androidx.constraintlayout.widget.Guideline
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/car_ui_toolbar_end_guideline"
        app:layout_constraintGuide_end="@dimen/car_ui_toolbar_end_inset"
        android:orientation="vertical"/>

    <androidx.constraintlayout.widget.Guideline
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/car_ui_toolbar_bottom_guideline"
        app:layout_constraintGuide_end="@dimen/car_ui_toolbar_bottom_inset"
        android:orientation="horizontal"/>

    <!-- The horizontal bias here is so that when you set this view as GONE, it will be
         treated as if it's all the way to the left instead of centered in the margin -->
    <FrameLayout
        android:id="@+id/car_ui_toolbar_nav_icon_container"
        android:layout_width="@dimen/car_ui_toolbar_margin"
        android:layout_height="0dp"
        style="@style/Widget.CarUi.Toolbar.NavIconContainer"
        app:layout_constraintTop_toTopOf="@id/car_ui_toolbar_top_guideline"
        app:layout_constraintBottom_toTopOf="@id/car_ui_toolbar_bottom_guideline"
        app:layout_constraintStart_toEndOf="@id/car_ui_toolbar_start_guideline"
        app:layout_constraintHorizontal_bias="0.0">
        <ImageView
            android:id="@+id/car_ui_toolbar_nav_icon"
            android:layout_width="@dimen/car_ui_toolbar_nav_icon_size"
            android:layout_height="@dimen/car_ui_toolbar_nav_icon_size"
            android:layout_gravity="center"
            android:scaleType="fitXY"
            style="@style/Widget.CarUi.Toolbar.NavIcon"/>
        <ImageView
            android:id="@+id/car_ui_toolbar_logo"
            android:layout_width="@dimen/car_ui_toolbar_logo_size"
            android:layout_height="@dimen/car_ui_toolbar_logo_size"
            android:layout_gravity="center"
            android:scaleType="fitXY"/>
    </FrameLayout>

    <FrameLayout
        android:id="@+id/car_ui_toolbar_title_logo_container"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        style="@style/Widget.CarUi.Toolbar.LogoContainer"
        app:layout_constraintTop_toTopOf="@id/car_ui_toolbar_top_guideline"
        app:layout_constraintBottom_toTopOf="@id/car_ui_toolbar_bottom_guideline"
        app:layout_constraintStart_toEndOf="@id/car_ui_toolbar_nav_icon_container">

        <ImageView
            android:id="@+id/car_ui_toolbar_title_logo"
            android:layout_width="@dimen/car_ui_toolbar_logo_size"
            android:layout_height="@dimen/car_ui_toolbar_logo_size"
            android:scaleType="fitXY"
            android:layout_gravity="center"
            style="@style/Widget.CarUi.Toolbar.Logo"/>
    </FrameLayout>

    <TextView
        android:id="@+id/car_ui_toolbar_title"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:singleLine="true"
        style="@style/Widget.CarUi.Toolbar.Title"
        app:layout_constraintTop_toTopOf="@id/car_ui_toolbar_top_guideline"
        app:layout_constraintBottom_toTopOf="@id/car_ui_toolbar_bottom_guideline"
        app:layout_constraintStart_toEndOf="@+id/car_ui_toolbar_title_logo_container"
        app:layout_constraintEnd_toStartOf="@+id/car_ui_toolbar_menu_items_container"/>

    <com.android.car.ui.toolbar.TabLayout
        android:id="@+id/car_ui_toolbar_tabs"
        android:layout_width="wrap_content"
        android:layout_height="0dp"
        app:layout_constraintTop_toTopOf="@id/car_ui_toolbar_top_guideline"
        app:layout_constraintBottom_toTopOf="@id/car_ui_toolbar_bottom_guideline"
        app:layout_constraintStart_toEndOf="@+id/car_ui_toolbar_title_logo_container"
        app:layout_constraintEnd_toStartOf="@+id/car_ui_toolbar_menu_items_container"
        app:layout_constraintHorizontal_bias="0.0"/>

    <LinearLayout
        android:id="@+id/car_ui_toolbar_menu_items_container"
        android:layout_width="wrap_content"
        android:layout_height="0dp"
        android:orientation="horizontal"
        style="@style/Widget.CarUi.Toolbar.MenuItem.Container"
        app:layout_constraintTop_toTopOf="@id/car_ui_toolbar_top_guideline"
        app:layout_constraintBottom_toTopOf="@id/car_ui_toolbar_bottom_guideline"
        app:layout_constraintEnd_toStartOf="@+id/car_ui_toolbar_end_guideline"/>

    <FrameLayout
        android:id="@+id/car_ui_toolbar_search_view_container"
        android:layout_width="0dp"
        android:layout_height="@dimen/car_ui_toolbar_search_height"
        app:layout_constraintTop_toTopOf="@id/car_ui_toolbar_top_guideline"
        app:layout_constraintBottom_toTopOf="@id/car_ui_toolbar_bottom_guideline"
        app:layout_constraintStart_toEndOf="@+id/car_ui_toolbar_nav_icon_container"
        app:layout_constraintEnd_toStartOf="@+id/car_ui_toolbar_menu_items_container"/>

    <View
        android:id="@+id/car_ui_toolbar_row_separator"
        android:layout_width="match_parent"
        android:layout_height="@dimen/car_ui_toolbar_separator_height"
        style="@style/Widget.CarUi.Toolbar.SeparatorView"
        app:layout_constraintBottom_toTopOf="@id/car_ui_toolbar_bottom_guideline"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"/>

    <ProgressBar
        android:id="@+id/car_ui_toolbar_progress_bar"
        style="@style/Widget.CarUi.Toolbar.ProgressBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toTopOf="@id/car_ui_toolbar_row_separator"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        android:indeterminate="true"
        android:visibility="gone"/>

    <View
        android:id="@+id/car_ui_toolbar_bottom_styleable"
        android:layout_width="match_parent"
        android:layout_height="@dimen/car_ui_toolbar_bottom_view_height"
        style="@style/Widget.CarUi.Toolbar.BottomView"
        app:layout_constraintBottom_toTopOf="@+id/car_ui_toolbar_progress_bar"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"/>

</androidx.constraintlayout.widget.ConstraintLayout>