how to startActivity with a ShareCompat.IntentBuilder
<p>I'm attempting to add a shared intent to post to google plus and can't seem to resolve the issue of passing the new ShareCompat.IntentBuilder ( android supporting library class ) to the startActivity method. I'm started out using the example in the link below.. My app is compiled using android 2.2 platform. Is possible that there is another supporting way to start the activity to launch the shared intent.</p>

<p><a href="http://googleplusplatform.blogspot.com/2012/05/sharing-rich-content-from-your-android.html" rel="nofollow">example</a></p>

<p>code snippit:</p>

<pre><code>IntentBuilder shareIntent = ShareCompat.IntentBuilder.from(MyActivity.this);                
shareIntent.setText(message);
shareIntent.setSubject(subject);

if ( mFullFileName != null ) {
    File imageFile = new File(mFullFileName);
if ( imageFile.exists() ) {
    shareIntent.setStream(Uri.fromFile(imageFile));
        shareIntent.setType("image/jpeg");
} 
} else {
    shareIntent.setType("*.*");
}   
shareIntent.getIntent();
startActivity(shareIntent); // doesn't compile only accepts Intent and not the Intentbuilder 
</code></pre>
