Android动画

最新推荐文章于 2025-12-26 15:53:04 发布

原创最新推荐文章于 2025-12-26 15:53:04 发布 · 75 阅读

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#android #前端

这段代码创建了两个AnimatorSet，一个用于上滑动效果（upSet），包括scaleX、scaleY和translationZ的动画，另一个用于下滑动效果（downSet）。使用DecelerateInterpolator使动画减速结束，然后将这两个动画集合添加到一个列表中，通过AnimatorSet按顺序播放，实现菜单项点击时的扩展和收缩动画效果。

AnimatorSet upSet, downSet;
        List<Animator> animators = new ArrayList<>();
        //创建动画
        ObjectAnimator scaleXAnim = ObjectAnimator.ofFloat(itemView, "scaleX", 0.8f);
        ObjectAnimator scaleYAnim = ObjectAnimator.ofFloat(itemView, "scaleY", 0.8f);
        ObjectAnimator upAnim = ObjectAnimator.ofFloat(itemView, "translationZ", -10f);
//            ObjectAnimator upColor = ObjectAnimator.ofArgb(itemView, "backgroundColor", Color.TRANSPARENT);
        upSet = new AnimatorSet();
        upSet.playTogether(scaleXAnim, scaleYAnim, upAnim);
        upSet.setDuration(100);
        upSet.setInterpolator(new DecelerateInterpolator());

        ObjectAnimator downAnim = ObjectAnimator.ofFloat(itemView, "translationZ", 0);
        ObjectAnimator scaleXDownAnim = ObjectAnimator.ofFloat(itemView, "scaleX", 1.0f);
        ObjectAnimator scaleYDownAnim = ObjectAnimator.ofFloat(itemView, "scaleY", 1.0f);
//            ObjectAnimator downColor = ObjectAnimator.ofArgb(itemView, "backgroundColor", 0);
        downSet = new AnimatorSet();
        downSet.playTogether(scaleXDownAnim, scaleYDownAnim, downAnim);
        downSet.setDuration(100);
        downSet.setInterpolator(new DecelerateInterpolator());

        animators.add(upSet);
        animators.add(downSet);
        AnimatorSet as = new AnimatorSet();
        as.playSequentially(animators);
       
        as.start();

创建菜单点击动画