顶部提示 先下移出来 再上移出去

int sw = DisplayUtils.getScreenWidth(mContext);
int h = DisplayUtils.dipToPx(mContext, 40);

if (animator == null) {
    animator = android.animation.ValueAnimator.ofFloat(100f, 0f, 0f, 0f, 0f, 0f, 0f, 100f);
    animator.setDuration(1300);
    animator.setInterpolator(new LinearInterpolator());
    animator.addListener(new Animator.AnimatorListener() {
        @Override
        public void onAnimationStart(Animator animation) {

        }

        @Override
        public void onAnimationEnd(Animator animation) {
            ViewUtils.setVisibility(mTvUpdateNotice, View.GONE);
        }

        @Override
        public void onAnimationCancel(Animator animation) {
            ViewUtils.setVisibility(mTvUpdateNotice, View.GONE);
        }

        @Override
        public void onAnimationRepeat(Animator animation) {

        }
    });
    animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
        @Override
        public void onAnimationUpdate(ValueAnimator animation) {
            float value = (Float) animation.getAnimatedValue();
            float x = value / 100;

            LogUtils.e("long", "value = " + value + " , x = " + x);

            LinearLayout.LayoutParams p = (LinearLayout.LayoutParams) mTvUpdateNotice.getLayoutParams();
            p.topMargin = (int) (-1 * h * x);
            p.width = (int) (sw * ( 1 - x));
            mTvUpdateNotice.setLayoutParams(p);
            mTvUpdateNotice.setAlpha((int) (1 - x));

            LogUtils.e("long", "topMargin = " + p.topMargin + "， width = " + p.width);

            // mTvUpdateNotice.requestLayout();
        }
    });

}
animator.start();