title: Why the image disappears when I turn the screen ?
body: <p>I understand a very simple example - display single image in imageview from sd card in android. I'am using Xamarin with C# and debug application on a real device via USB.</p>
  
  <p>Component "ImageView" displays the image correctly, but when rotates the screen, image will not be displayed.</p>
  
  <p>Activity1.cs</p>
  
  <pre><code>using System;
  
  using Android.App;
  using Android.Content;
  using Android.Runtime;
  using Android.Views;
  using Android.Widget;
  using Android.OS;
  using System.IO;
  using Android.Graphics;
  
  namespace DisplayImageFromSDCard
  {
      [Activity(Label = "DisplayImageFromSDCard", MainLauncher = true, Icon = "@drawable/icon")]
      public class Activity1 : Activity
      {
          ImageView imageView;
  
          protected override void OnCreate(Bundle bundle)
          {
              base.OnCreate(bundle);
              SetContentView(Resource.Layout.Main);
              imageView = FindViewById&lt;ImageView&gt;(Resource.Id.imageView1);
              Button button = FindViewById&lt;Button&gt;(Resource.Id.MyButton);
              button.Click += button_Click;
          }
  
          void button_Click(object sender, EventArgs e)
          {
              var sdCardPath = Android.OS.Environment.ExternalStorageDirectory.Path;
              var imageFilePath = System.IO.Path.Combine(sdCardPath, "SampleImageFile.jpg");
  
              if (System.IO.File.Exists(imageFilePath))
              {
                  var imageFile = new Java.IO.File(imageFilePath);
                  Bitmap bitmap = BitmapFactory.DecodeFile(imageFile.AbsolutePath);
                  imageView.SetImageBitmap(bitmap); 
              }
              else
              {
                  //Display No Image Found
              }
          }
      }
  }
  </code></pre>
  
  <p>Main.axml</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:orientation="vertical"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"&gt;
      &lt;Button
          android:id="@+id/MyButton"
          android:layout_width="fill_parent"
          android:layout_height="wrap_content"
          android:text="@string/MyButtonText" /&gt;
      &lt;ImageView
          android:src="@android:drawable/ic_menu_gallery"
          android:layout_width="fill_parent"
          android:layout_height="fill_parent"
          android:id="@+id/imageView1" /&gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>Grateful for any help.</p>