SimpleActivity.java 文件源码

@Override public void apply(@NonNull View view, int index) {
  AlphaAnimation alphaAnimation = new AlphaAnimation(0, 1);
  alphaAnimation.setFillBefore(true);
  alphaAnimation.setDuration(500);
  alphaAnimation.setStartOffset(index * 100);
  view.startAnimation(alphaAnimation);
}