grid_view_item.xml

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

<!--
  ~ Copyright (C) 2021 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
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  ~ distributed under the License is distributed on an "AS IS" BASIS,
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<layout 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">
    <data>
        <variable
            name="photo"
            type="com.example.android.marsphotos.network.MarsPhoto" />
    </data>
    <ImageView
        android:id="@+id/mars_image"
        android:layout_width="wrap_content"
        android:layout_height="170dp"
        android:scaleType="fitXY"
        android:adjustViewBounds="true"
        android:padding="2dp"
        app:imageUrl="@{photo.imgSrcUrl}"
        tools:src="@tools:sample/backgrounds/scenic"/>
</layout>