title: Android: Show progress circle like Google does in their apps
body: <p>I'm using an AsyncTask to download Images for my Listview, because I dont want the download of the Images to block my UI-Thread. While the images are being loaded, I want to show an animated progress circle in the spot, where the image will be.</p>
  
  <p>But I cant find an Image of the progress circle. What is the Ressource-Id? Or is there any other way? Does someone has a link to this image?</p>