慕课网app的底部导航切换的动态图标变化是怎么做的

Question

一般切换图片都是硬性切换没有动态效果的，他这个切换跟gif动画一样，那个图标到底是icon图标还是gif图片？怎么实现的？求解？切换的时候图标会慢慢变色

Answer 1

icon图标不能有动态效果吧。你解决了吗

Answer 2

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