iOS --- lottie

开发人员有了这个三方框架，再也不用去苦恼各种动画的实现了，还得跟UI设计人员扯皮。

框架的优点：

UI设计人员将动画图制作好了后，利用工具转为json文件，开发人员通过框架提供的方法加载json就可以实现各种精彩的动画。

缺点：

这个框架的动画效果只能作为展示，不能产生交互行为。

通过cocoapods集成。例如： pod 'lottie-ios', '~> 2.5.0'

Lottie支持iOS 8 及其以上系统。当我们把动画需要的images资源文件添加到Xcode的目标工程的后，Lottie 就可以通过JSON文件或者包含了JSON文件的URL来加载动画。

JSON示例如下：

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调用方式：

至于图片从哪里来？找设计，谁给你提供动画JSON文件，就找谁。

效果如下图，这里没截视频，因此是静态的，动手操作，就会看到是动态的。