title: combining two png files in android
body: <p>I have two png image files that I would like my android app to combine programmatically into one png image file and am wondering if it is possible to do so?  if so, what I would like to do is just overlay them on each other to create one file.</p>
  
  <p>the idea behind this is that I have a handful of png files, some with a portion of the image on the left with the rest transparent and the others with an image on the right and the rest transparent.  and based on user input it will combine the two to make one file to display. (and i cant just display the two images side by side, they need to be one file) </p>
  
  <p>is this possible to do programmatically in android and how so?</p>