packages/SystemUI/res/layout/global_screenshot.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright (C) 2011 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.
  -->
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
             android:layout_width="match_parent"
             android:layout_height="match_parent">
    <ImageView
        android:id="@+id/global_screenshot_background"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:src="@android:color/black"
        android:visibility="gone"/>
    <ImageView
        android:id="@+id/global_screenshot_actions_background"
        android:layout_height="400dp"
        android:layout_width="match_parent"
        android:layout_gravity="bottom|center"
        android:src="@drawable/screenshot_actions_background_protection"
        android:alpha="0"/>
    <HorizontalScrollView
        android:id="@+id/global_screenshot_actions_container"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|center"
        android:elevation="3dp"
        android:fillViewport="true"
        android:layout_marginHorizontal="@dimen/screenshot_action_container_margin_horizontal"
        android:gravity="center"
        android:paddingLeft="@dimen/screenshot_action_container_padding_left"
        android:paddingRight="@dimen/screenshot_action_container_padding_right"
        android:paddingVertical="@dimen/screenshot_action_container_padding_vertical"
        android:visibility="gone"
        android:scrollbars="none"
        android:background="@drawable/action_chip_container_background">
        <LinearLayout
            android:id="@+id/global_screenshot_actions"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"/>
    </HorizontalScrollView>
    <ImageView
        android:id="@+id/global_screenshot"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:elevation="@dimen/screenshot_preview_elevation"
        android:visibility="gone"
        android:background="@drawable/screenshot_rounded_corners"
        android:adjustViewBounds="true"/>
    <FrameLayout
        android:id="@+id/global_screenshot_dismiss_button"
        android:layout_width="@dimen/screenshot_dismiss_button_tappable_size"
        android:layout_height="@dimen/screenshot_dismiss_button_tappable_size"
        android:elevation="9dp"
        android:visibility="gone">
        <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_margin="@dimen/screenshot_dismiss_button_margin"
            android:src="@drawable/screenshot_cancel"/>
    </FrameLayout>
    <ImageView
        android:id="@+id/global_screenshot_flash"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:src="@android:color/white"
        android:elevation="8dp"
        android:visibility="gone"/>
    <com.android.systemui.screenshot.ScreenshotSelectorView
        android:id="@+id/global_screenshot_selector"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:visibility="gone"
        android:pointerIcon="crosshair"/>

</FrameLayout>