前端 arcgis Web端使用Lottie渲染AE导出的json动画-lottie-web-demo

示例

Lottie是Airbnb开发的一种轻量级的JavaScript库，它能够在Web、iOS和Android平台上呈现高质量、动态的矢量动画。Lottie使得在应用中使用复杂的矢量动画变得更加容易，并且在不同平台上能够实现更高的视觉一致性。而lottie-web是Lottie的Web版本，使用它可以在Web页面中展示高品质、流畅的动态矢量动画。

与css动画、gif、帧动画的比较 

安装

npm i lottie-web

Vue中使用

创建LottieAni文件

API文档

基本用法

创建

const animation = lottie.loadAnimation({

container: document.getElementById('domId'), // 绑定dom节点

renderer: 'svg', // 渲染方式:svg、canvas

loop: true, // 是否循环播放，默认：false

autoplay: true, // 是否自动播放, 默认true

animationData: // AE动画使用bodymovie导出为json数据

})

常用方法

animation.play(); // 播放，从当前帧开始播放

animation.stop(); // 停止，并回到第0帧

animation.pause(); // 暂停，并保持当前帧

animation.goToAndStop(value, isFrame); // 跳到某个时刻/帧并停止isFrame(默认false)指示value表示帧还是时间(毫秒)

animation.goToAndPlay(value, isFrame); // 跳到某个时刻/帧并进行播放

animation.goToAndStop(30, true); // 跳转到第30帧并停止

animation.goToAndPlay(300); // 跳转到第300毫秒并播放

animation.playSegments(arr, forceFlag); // arr可以包含两个数字或者两个数字组成的数组，forceFlag表示是否立即强制播放该片段

animation.playSegments([10,20], false); // 播放完之前的片段，播放10-20帧

animation.playSegments([[0,5],[10,18]], true); // 直接播放0-5帧和10-18帧

animation.setSpeed(speed); // 设置播放速度，speed为1表示正常速度

animation.setDirection(direction); // 设置播放方向，1表示正向播放，-1表示反向播放

animation.destroy(); // 删除该动画，移除相应的元素标签等。

常用的事件

animation.addEventListener('data_ready', () => {}) // 动画数据加载完毕

animation.addEventListener('config_ready', () => {}) // 完成初始配置后

animation.addEventListener('data_failed', () => {}) // 加载动画数据失败

animation.addEventListener('loaded_images', () => {}) // 所有图片加载成功或者失败

animation.addEventListener('DOMLoaded', () => {}) // 将元素添加到DOM后

Lottie-web 提供了丰富的 API，以便我们控制动画的播放、暂停、重置、改变速度等操作。下面列出一些常用的 API：

lottie.loadAnimation：加载动画文件并返回一个动画实例。animation.play: 播放动画。animation.stop: 停止动画。animation.setSpeed：设置动画的播放速度。animation.setDirection：设置动画的播放方向。animation.goToAndStop：跳转到指定时间点或帧，并暂停。animation.destroy：销毁动画实例。

options 参数包含以下属性：

参数类型默认值说明animationDataobject or arraynullLottie动画数据pathstringnullLottie动画的JSON文件路径rendererstring'svg'Lottie动画渲染方式，支持'canvas'和'svg'loopbool or numbertrue是否循环播放动画autoplayboolfalse是否自动播放动画namestringnullLottie动画的名称assetsPathstringnullLottie动画资源文件夹的路径rendererSettingsobject{}Lottie动画渲染的一些配置

在options参数中， animationData和path必须设置其中之一。 animationData可以直接传入Lottie动画数据，而path则是Lottie动画的JSON文件路径，可以通过require或import语句导入

Lottie的免费资源

LottieFiles: Download Free lightweight animations for website & apps. Lottie的动画是通过AE制作好了动画后，再使用bodymovie导出为json格式

JSON动画配置文件

ammNoticeData.json

{"v":"5.6.1","fr":25,"ip":0,"op":150,"w":896,"h":480,"nm":"插图整","ddd":0,"assets":[{"id":"image_0","w":132,"h":58,"u":"","p":"data:image/png;base64,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","e":0},{"id":"image_1","w":33,"h":40,"u":"","p":"data:image/png;base64,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