activity_customtab.xml

Enable keyboard shortcuts

<?xml version="1.0" encoding="utf-8"?>

<!-- This Source Code Form is subject to the terms of the Mozilla Public

   - License, v. 2.0. If a copy of the MPL was not distributed with this

   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->

<!-- Ignore MergeRootFrame: we need a single container View where we can attach fragments, so

     we definitely need to keep this FrameLayout (i.e. we can't <merge> here). -->

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"

             xmlns:tools="http://schemas.android.com/tools"

             tools:ignore="MergeRootFrame"

             android:id="@+id/container"

             android:layout_width="match_parent"

             android:layout_height="match_parent"/>