How to display image in Imageview?

Hello,

This article is for Beginner and people who want to learn Android .This article is about How to display image in Imageview Example. 

1. XML File .

activity_main -

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    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:gravity="center"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <ImageView
        android:id="@+id/img"
        android:background="@drawable/android_logo"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

</LinearLayout>