//在2000毫秒内，将值从0过渡到1的动画

        ValueAnimator anim = ValueAnimator.ofFloat(0f, 1f);

        anim.setDuration(2000);

        anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {

            @Override

            public void onAnimationUpdate(ValueAnimator valueAnimator) {

                float currentValue = (float) valueAnimator.getAnimatedValue();

                Log.e("tag", "currentValue="+currentValue);

                String textStr = ((int) (currentValue * 60)) + "";

                text1_tv.setText(textStr);

            }

        });

        anim.start();

//将TextView从常规变换成全透明，再从全透明变换成常规

        ObjectAnimator anim1 = ObjectAnimator.ofFloat(text2_tv, "alpha", 1f, 0f, 1f);

        anim1.setDuration(3000);

        anim1.start();

        //将TextView进行一次360度的旋转

        ObjectAnimator anim2 = ObjectAnimator.ofFloat(text2_tv, "rotation", 0f, 360f);

        anim2.setDuration(3000);

        anim2.start();

        //将TextView先向左移出屏幕，然后再移动回来

        float curTranslationX = text2_tv.getTranslationX();

        ObjectAnimator anim3 = ObjectAnimator.ofFloat(text2_tv, "translationX", curTranslationX, -500f, curTranslationX);

        anim3.setDuration(3000);

        anim3.start();

        //将TextView在垂直方向上放大3倍再还原

        ObjectAnimator anim4 = ObjectAnimator.ofFloat(text2_tv, "scaleY", 1f, 3f, 1f);

        anim4.setDuration(5000);

        anim4.start();

//让TextView先从屏幕外移动进屏幕，然后开始旋转360度，旋转的同时进行淡入淡出操作

        ObjectAnimator moveIn = ObjectAnimator.ofFloat(text3_tv, "translationX", -500f, 0f);

        ObjectAnimator rotate = ObjectAnimator.ofFloat(text3_tv, "rotation", 0f, 360f);

        ObjectAnimator fadeInOut = ObjectAnimator.ofFloat(text3_tv, "alpha", 1f, 0f, 1f);

        AnimatorSet animSet = new AnimatorSet();

        animSet.play(rotate).with(fadeInOut).after(moveIn);

        animSet.setDuration(5000);

        animSet.start();