Android 动画

privatevoid startFlickerAnimation(ImageView img) {
final Animation animation = new AlphaAnimation(1f, 0)f;
animation.setDuration(500);
animation.setInterpolator(new LinearInterpolator()); // do not alter animation rate
animation.setRepeatCount(Animation.INFINITE); // Repeat animation infinitely
animation.setRepeatMode(Animation.REVERSE); //
img.setAnimation(animation);
animation.start();
}