title: Android's flipper won't flip
body: <p>I made a <code>GridView</code> gallery of image thumbnails, and I want the application to show the selected thumbnail in full size in next screen (full screen).</p>
  
  <p>I have the image in in full size, thus I don't have to re-size it, but the problem that flipper won't flip.</p>
  
  <p>My <code>onItemSelected</code> method looks like this:</p>
  
  <pre><code>public void onItemSelected(AdapterView&lt;?&gt; adapterView,
          View view, int i, long l) {
  
      if (gridLayout.isActivated()) {
          fullImage.setImageBitmap(
              downloadImage(listOfImages.get(i).getImgURLs()[1].getUrl()));
          flipper.showNext();
      }
  }
  </code></pre>
  
  <p>and the main.xml like this:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
        &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
       android:id="@+id/lLayout" android:layout_width="fill_parent" android:layout_height="fill_parent"  android:orientation="vertical"&gt;
     &lt;ViewFlipper android:id="@+id/details"
       android:layout_width="fill_parent"
       android:layout_height="fill_parent"&gt;
        &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
          android:id="@+id/gridLayout" android:layout_width="fill_parent" android:layout_height="fill_parent"  android:orientation="vertical"&gt;
      &lt;GridView xmlns:android="http://schemas.android.com/apk/res/android"
          android:id="@+id/gridView"
          android:layout_width="fill_parent"
          android:layout_height="fill_parent"
          android:columnWidth="90dp"
          android:numColumns="auto_fit"
          android:verticalSpacing="10dp"
          android:horizontalSpacing="10dp"
          android:stretchMode="columnWidth"
          android:gravity="center"  /&gt;
        &lt;/LinearLayout&gt;
       &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
          android:id="@+id/oneImageLayout" android:layout_width="fill_parent" android:layout_height="fill_parent"  android:orientation="vertical"&gt;
           &lt;Button android:id="@+id/flipMeBack"
               android:layout_width="fill_parent"
               android:layout_height="wrap_content"
               android:text="Flip Me!"
            /&gt;
           &lt;ImageView android:id="@+id/wholeImage"
               android:layout_width="fill_parent"
               android:layout_height="fill_parent"
           /&gt;   &lt;/LinearLayout&gt;
    &lt;/ViewFlipper&gt;
   &lt;/LinearLayout&gt;
  </code></pre>