ListView、GridView加载条目动画初体验

1、Android本身ListView和GridView加载每个Item时默认是没有动画的，这就给用户一种不好的体验，下面我就做了一些简单的补间动画。

/**     * ListView条目加载动画     * @return     */    public LayoutAnimationController getLVAnimationController() {        int duration = 100;        AnimationSet animSet = new AnimationSet(true);        Animation alphaAnim = new AlphaAnimation(0.0f, 1.0f); // 透明度改变        alphaAnim.setDuration(duration); // 动画时间        animSet.addAnimation(alphaAnim);        Animation transAnim = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 1.0f, Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 0.0f); // 位移动画        transAnim.setDuration(duration);        animSet.addAnimation(transAnim);        LayoutAnimationController lac = new LayoutAnimationController(animSet, 1.0f);        lac.setOrder(LayoutAnimationController.ORDER_NORMAL); // 动画顺序        return lac;    }    /**     * GridView条目加载动画     * @return     */    public LayoutAnimationController getGVAnimationController() {        int duration = 50;        AnimationSet animSet = new AnimationSet(true);        Animation alphaAnim = new AlphaAnimation(0.0f, 1.0f);        alphaAnim.setDuration(duration);        animSet.addAnimation(alphaAnim);        Animation transAnim = new ScaleAnimation(0.0f, 1.0f, 0.0f, 1.0f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); // 伸缩动画        transAnim.setDuration(duration);        animSet.addAnimation(transAnim);        LayoutAnimationController lac = new LayoutAnimationController(animSet, 0.5f);        lac.setOrder(LayoutAnimationController.ORDER_NORMAL);        return lac;    }

2、ListView和GridView有一个LayoutAnimation的属性，所以我们就可以为它们设置动画了。

mListView.setLayoutAnimation(getLVAnimationController());mGridView.setLayoutAnimation(getGVAnimationController());

3、完成！当然这只是一些普通简单的动画。