<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/black"
    android:gravity="center"
    android:orientation="vertical">

    <com.luck.picture.lib.photoview.PhotoView
        android:id="@+id/photoView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</LinearLayout>