packages/SystemUI/res/layout/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.
  -->
<com.android.systemui.screenshot.ScreenshotView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/screenshot_frame"
    android:theme="@style/FloatingOverlay"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:importantForAccessibility="no">
    <ImageView
        android:id="@+id/screenshot_scrolling_scrim"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:visibility="gone"
        android:clickable="true"
        android:importantForAccessibility="no"/>
    <ImageView
        android:id="@+id/screenshot_flash"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:visibility="gone"
        android:elevation="7dp"
        android:src="@android:color/white"/>
    <include layout="@layout/screenshot_static"
             android:id="@+id/screenshot_static"/>
</com.android.systemui.screenshot.ScreenshotView>