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

    <data></data>

    <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".MainActivity">

        <FrameLayout
            android:id="@+id/fl_content"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </android.support.constraint.ConstraintLayout>
</layout>