動畫的另外一種方式

        PropertyValuesHolder ofFloat = PropertyValuesHolder.ofFloat("scaleX", new float[]{1.0f, 1.1f, 1.0f});
        PropertyValuesHolder ofFloat2 = PropertyValuesHolder.ofFloat("scaleY", new float[]{1.0f, 1.1f, 1.0f});
        ObjectAnimator ofPropertyValuesHolder = ObjectAnimator.ofPropertyValuesHolder(this, new PropertyValuesHolder[]{ofFloat, ofFloat2});
        ofPropertyValuesHolder.setDuration(200);
        ofPropertyValuesHolder.setInterpolator(new LinearInterpolator());
        ofPropertyValuesHolder.start();
    }