res/layout/clipboard_overlay.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ 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.
  -->
<com.android.systemui.clipboardoverlay.ClipboardOverlayView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:androidprv="http://schemas.android.com/apk/prv/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/clipboard_ui"
    android:theme="@style/FloatingOverlay"
    android:alpha="0"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:contentDescription="@string/clipboard_overlay_window_name">
    <!-- Min edge spacing guideline off of which the preview and actions can be anchored (without
         this we'd need to express margins as the sum of two different dimens). -->
    <androidx.constraintlayout.widget.Guideline
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/min_edge_guideline"
        app:layout_constraintGuide_begin="@dimen/overlay_action_container_minimum_edge_spacing"
        android:orientation="vertical"/>
    <!-- This toast-like indication layout was forked from text_toast.xml and will have the same
         appearance as system toast. -->
    <FrameLayout
        android:id="@+id/indication_container"
        android:visibility="gone"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:maxWidth="@*android:dimen/toast_width"
        android:background="@android:drawable/toast_frame"
        android:elevation="@*android:dimen/toast_elevation"
        android:paddingStart="16dp"
        android:paddingEnd="16dp"
        android:layout_marginEnd="@dimen/overlay_action_container_margin_horizontal"
        android:layout_marginStart="@dimen/overlay_action_container_margin_horizontal"
        android:layout_marginBottom="@dimen/overlay_action_container_margin_bottom"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintBottom_toBottomOf="parent">
        <TextView
            android:id="@+id/indication_text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:ellipsize="end"
            android:maxLines="2"
            android:paddingTop="12dp"
            android:paddingBottom="12dp"
            android:textAppearance="@*android:style/TextAppearance.Toast"/>
    </FrameLayout>
    <!-- Negative horizontal margin because this container background must render beyond the thing
         it's constrained by (the actions themselves). -->
    <FrameLayout
        android:id="@+id/actions_container_background"
        android:visibility="gone"
        android:layout_height="0dp"
        android:layout_width="0dp"
        android:elevation="4dp"
        android:background="@drawable/shelf_action_chip_container_background"
        android:layout_marginStart="@dimen/negative_overlay_action_container_minimum_edge_spacing"
        android:layout_marginEnd="@dimen/negative_overlay_action_container_minimum_edge_spacing"
        android:layout_marginBottom="@dimen/overlay_action_container_margin_bottom"
        app:layout_constraintStart_toStartOf="@id/min_edge_guideline"
        app:layout_constraintTop_toTopOf="@id/actions_container"
        app:layout_constraintEnd_toEndOf="@id/actions_container"
        app:layout_constraintBottom_toTopOf="@id/indication_container"/>
    <HorizontalScrollView
        android:id="@+id/actions_container"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginEnd="@dimen/overlay_action_container_margin_horizontal"
        android:paddingEnd="@dimen/overlay_action_container_padding_end"
        android:paddingVertical="@dimen/overlay_action_container_padding_vertical"
        android:elevation="4dp"
        android:scrollbars="none"
        app:layout_constraintHorizontal_bias="0"
        app:layout_constraintWidth_percent="1.0"
        app:layout_constraintWidth_max="wrap"
        app:layout_constraintStart_toEndOf="@+id/preview_border"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintBottom_toBottomOf="@id/actions_container_background">
        <LinearLayout
            android:id="@+id/actions"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingStart="@dimen/shelf_action_chip_margin_start"
            android:showDividers="middle"
            android:divider="@drawable/shelf_action_chip_divider"
            android:animateLayoutChanges="true">
            <include layout="@layout/shelf_action_chip"
                     android:id="@+id/share_chip"/>
            <include layout="@layout/shelf_action_chip"
                     android:id="@+id/remote_copy_chip"/>
        </LinearLayout>
    </HorizontalScrollView>
    <View
        android:id="@+id/preview_border"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginStart="@dimen/overlay_preview_container_margin"
        android:layout_marginTop="@dimen/overlay_border_width_neg"
        android:layout_marginEnd="@dimen/overlay_border_width_neg"
        android:layout_marginBottom="@dimen/overlay_preview_container_margin"
        android:elevation="7dp"
        android:background="@drawable/overlay_border"
        app:layout_constraintStart_toStartOf="@id/min_edge_guideline"
        app:layout_constraintTop_toTopOf="@id/clipboard_preview"
        app:layout_constraintEnd_toEndOf="@id/clipboard_preview"
        app:layout_constraintBottom_toBottomOf="@id/actions_container_background"/>
    <FrameLayout
        android:id="@+id/clipboard_preview"
        android:layout_width="@dimen/clipboard_preview_size"
        android:layout_height="wrap_content"
        android:layout_marginStart="@dimen/overlay_border_width"
        android:layout_marginBottom="@dimen/overlay_border_width"
        android:layout_gravity="center"
        android:elevation="7dp"
        android:background="@drawable/overlay_preview_background"
        android:clipChildren="true"
        android:clipToOutline="true"
        android:clipToPadding="true"
        app:layout_constraintStart_toStartOf="@id/preview_border"
        app:layout_constraintBottom_toBottomOf="@id/preview_border">
        <TextView android:id="@+id/text_preview"
                  android:textFontWeight="500"
                  android:padding="8dp"
                  android:gravity="center|start"
                  android:ellipsize="end"
                  android:autoSizeTextType="uniform"
                  android:autoSizeMinTextSize="@dimen/clipboard_overlay_min_font"
                  android:autoSizeMaxTextSize="@dimen/clipboard_overlay_max_font"
                  android:textColor="?attr/overlayButtonTextColor"
                  android:textColorLink="?attr/overlayButtonTextColor"
                  android:background="?androidprv:attr/colorAccentSecondary"
                  android:layout_width="@dimen/clipboard_preview_size"
                  android:layout_height="@dimen/clipboard_preview_size"/>
        <ImageView
            android:id="@+id/image_preview"
            android:scaleType="fitCenter"
            android:adjustViewBounds="true"
            android:contentDescription="@string/clipboard_image_preview"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"/>
        <TextView
            android:id="@+id/hidden_preview"
            android:visibility="gone"
            android:textFontWeight="500"
            android:padding="8dp"
            android:gravity="center"
            android:textSize="14sp"
            android:textColor="?attr/overlayButtonTextColor"
            android:background="?androidprv:attr/colorAccentSecondary"
            android:layout_width="@dimen/clipboard_preview_size"
            android:layout_height="@dimen/clipboard_preview_size"/>
    </FrameLayout>
    <LinearLayout
        android:id="@+id/minimized_preview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:visibility="gone"
        android:elevation="7dp"
        android:padding="8dp"
        app:layout_constraintBottom_toTopOf="@id/indication_container"
        app:layout_constraintStart_toStartOf="parent"
        android:layout_marginStart="@dimen/overlay_action_container_margin_horizontal"
        android:layout_marginBottom="@dimen/overlay_action_container_margin_bottom"
        android:background="@drawable/clipboard_minimized_background">
        <ImageView
            android:src="@drawable/ic_content_paste"
            android:tint="?attr/overlayButtonTextColor"
            android:layout_width="24dp"
            android:layout_height="24dp"/>
        <ImageView
            android:src="@*android:drawable/ic_chevron_end"
            android:tint="?attr/overlayButtonTextColor"
            android:layout_width="24dp"
            android:layout_height="24dp"
            android:paddingEnd="-8dp"
            android:paddingStart="-4dp"/>
    </LinearLayout>
    <androidx.constraintlayout.widget.Barrier
        android:id="@+id/clipboard_content_top"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        app:barrierDirection="top"
        app:constraint_referenced_ids="clipboard_preview,minimized_preview"/>
    <androidx.constraintlayout.widget.Barrier
        android:id="@+id/clipboard_content_end"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        app:barrierDirection="end"
        app:constraint_referenced_ids="clipboard_preview,minimized_preview"/>
    <FrameLayout
        android:id="@+id/dismiss_button"
        android:layout_width="@dimen/overlay_dismiss_button_tappable_size"
        android:layout_height="@dimen/overlay_dismiss_button_tappable_size"
        android:elevation="10dp"
        android:visibility="gone"
        android:alpha="0"
        app:layout_constraintStart_toEndOf="@id/clipboard_content_end"
        app:layout_constraintEnd_toEndOf="@id/clipboard_content_end"
        app:layout_constraintTop_toTopOf="@id/clipboard_content_top"
        app:layout_constraintBottom_toTopOf="@id/clipboard_content_top"
        android:contentDescription="@string/clipboard_dismiss_description">
        <ImageView
            android:id="@+id/dismiss_image"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_margin="@dimen/overlay_dismiss_button_margin"
            android:background="@drawable/circular_background"
            android:backgroundTint="?androidprv:attr/materialColorPrimaryFixedDim"
            android:tint="?androidprv:attr/materialColorOnPrimaryFixed"
            android:padding="4dp"
            android:src="@drawable/ic_close"/>
    </FrameLayout>
</com.android.systemui.clipboardoverlay.ClipboardOverlayView>