title: How to create fireworks particle graphics effect on android
body: <p>Anybody has any idea how to make a fireworks effect by drawing on canvas?
  There is one nice example in wireworks live wallpaper (free app). </p>
  
  <p>There, many points move and leave trails in a star like explosion and gradually disappear. I think that there is some kind of motion blur on each point moving, which I am not sure how to create.</p>
  
  <p>Any ideas or links to relevant examples are welcome.</p>