AnimationUtil.java 文件源码

private static void ApplyHorizontalScrollAnimation(View view, boolean left, int speed) {
  float sign = left ? 1f : -1f;
  AnimationSet animationSet = new AnimationSet(true);
  animationSet.setRepeatCount(Animation.INFINITE);
  animationSet.setRepeatMode(Animation.RESTART);

  TranslateAnimation move = new TranslateAnimation(Animation.RELATIVE_TO_PARENT, sign * 0.70f,
      Animation.RELATIVE_TO_PARENT, sign * -0.70f, Animation.RELATIVE_TO_PARENT, 0,
      Animation.RELATIVE_TO_PARENT, 0);
  move.setStartOffset(0);
  move.setDuration(speed);
  move.setFillAfter(true);
  animationSet.addAnimation(move);
  view.startAnimation(animationSet);
}