title: Android OpenGL ES display image fullscreen with aspect ratio
body: <p>I want to display an image fullscreen in my OpenGL app without losing its aspect ratio. I know that I can draw an image as a texture onto a "cube" or 2d plane. But I'm not sure if this is really the best way when I just simply want to show a 2d image.</p>
  
  <p>Espcially because I want this image to be fullscreen without losing its aspect ratio. I know this is easy with an ImageView. But I need this in my OpenGL ES application.</p>
  
  <p>But I have no clue how to do this. Anyone any idea?</p>