Android Animation - Rotate Image Moves Irregularly -

when start animation moves slow in beginning , gets faster move. suggest me. here code

  animation rotateanim;   rotateanim = new rotateanimation(0, 360,                                     animation.relative_to_self, 0.5f, animation.relative_to_self, 0.5f);   rotateanim.setduration(60*1000);   rotateanim.setinterpolator(new accelerateinterpolator());   _mclockneedle.startanimation(rotateanim); 

you using accelerateinterpolator. behavior describe how class made, specified in api. may want use linearinterpolator instead, if want move @ constant rate. there other subclasses of interpolator chose from.

if wish animation shorter or longer done setduration method, in milliseconds, you've set 1 minute in example.