uniapp展示本地swf格式文件，实现交互
概览
uniapp打包的Android项目实现本地swf格式文件的展示，并且能够进行交互
需求分析
1、因为是打包的Android项目展示本地的swf文件，首先需要拿到这个本地的swf文件路径
2、如何在uniapp的vue页面中展示swf，因为没有直接展示swf文件的标签/组件，考虑使用web-view组件来进行展示swf文件
3、直接使用web-view组件无法展示swf，使用html先展示swf，然后把html链接放到web-view中进行展示
4、html中如何展示swf，把swf转为html来进行展示这个swf文件（使用开源的js实现，下载地址：https://download.csdn.net/download/ahualong1/89900202）
具体实现
1、flashPage.vue页面
<template><view :style="{height: screenHeight + 'px'}"><!-- <titleViewVue :titleName="titleName" class="VideoTitleViewClass"></titleViewVue> --><web-view :src="url" @message="handlePostMessage"></web-view></view>
</template><script>import titleViewVue from '../../components/titleView/titleView.vue'import {uploadStudyTime} from '@/api/api.js'export default {components: {titleViewVue},data() {return {titleName: '',//标题SubjectId: '',videoSrc: '',//视频资源本地地址videoHeight: '',videoWidth: '100%',screenHeight: '',startTime: 0,fileUrl: '',url: ''}},onLoad(option) {this.startTime = Date.now()this.screenHeight = getApp().globalData.screenHeight;// 定义视频URLthis.titleName = option.titleName?option.titleName:''this.SubjectId = option.SubjectId + ''this.fileUrl = option.urlthis.url = '/static/flash.html?filePath=' + plus.io.convertLocalFileSystemURL(this.fileUrl) + '&titleName=' + this.titleName},onUnload() {if(!getApp().globalData.isGuest){this.uploadSduyTimePage()} },methods: {uploadSduyTimePage(){var upLoadTime = {"subject_id": this.SubjectId,"date": this.$utils.formatDateTime(),"time": Date.now() / 1000 - this.startTime / 1000}this.startTime = 0const arryUpload = []arryUpload[0] = upLoadTimeuploadStudyTime({"data": arryUpload}).then(res=>{if(res.data.code == 200 && res.data.status == 'success'){}else{if(uni.getStorageSync('uploadTime')){arryUpload = []arryUpload = uni.getStorageSync('uploadTime')arryUpload.push(upLoadTime)uni.setStorageSync('uploadTime',arryUpload)}else{arryUpload = []arryUpload.push(upLoadTime)uni.setStorageSync('uploadTime',arryUpload)}}})},handlePostMessage(){uni.navigateBack()}}}
</script><style></style>
码中fileUrl 为uni.saveFile()保存到本地的路径，直接打开是无法展示的，需要使用plus的api：plus.io.convertLocalFileSystemURL(this.fileUrl) 将本地文件系统的URL转换为跨域可以访问的URL
2、flash.html的具体代码
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><title>SWFObject 2 dynamic publishing example page</title><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /><script type="text/javascript" src="swf2js.js"></script></head><body><div style="width: 100%;height: auto;display: flex;align-items: center;justify-content: space-between;flex-direction: row;padding: 8px;background-color: #87B5F9;"><img src="leftarrow.png" style="height: 20px;" id="backClickId" /><div style="flex: 1;display: flex;align-items: center;justify-content: center;"><div id="titleNameId" style="color: #FFFFFF;font-size: 20px;"></div></div></div></body><!-- 微信 JS-SDK 如果不需要兼容小程序，则无需引用此 JS 文件。 --><!-- <script type="text/javascript" src="//res.wx.qq.com/open/js/jweixin-1.6.0.js"></script> --><!-- uni 的 SDK，必须引用。 --><script type="text/javascript" src="../hybrid/html/web/uni.webview.js"></script><script type="text/javascript">document.getElementById('backClickId').addEventListener('click', function() {uni.postMessage({data: {"back": true}});});window.onload = function() {if(location.href.includes('filePath')){swf2js.load(getParameterByName('filePath', ''))}if (location.href.includes('titleName')) {document.getElementById('titleNameId').textContent = getParameterByName('titleName', '');} else {document.getElementById('titleNameId').textContent = '模拟训练';}};function getParameterByName(name, url) {if (!url) url = location.href;name = name.replace(/[\[\]]/g, '\\$&');var regex = new RegExp('[?&]' + name + '(=([^&#]*)|&|#|$)'),results = regex.exec(url);if (!results) return null;if (!results[2]) return '';return decodeURIComponent(results[2].replace(/\+/g, ' '));}</script>
</html>其中uni.postMessage 是web-view向uniapp.vue传递消息
document.getElementById('backClickId').addEventListener('click', function() {uni.postMessage({data: {"back": true}});});swf2js.load(getParameterByName('filePath', ''))为加载本地swf格式的资源代码
需要引入<script type="text/javascript" src="swf2js.js"></script>
方法getParameterByName 是获取打开的链接获取参数的方法
运行项目到模拟器或真机进行展示swf，就OK了。
可以查看项目中 pages-> flashPage->flashPage.vue页面
项目地址：https://download.csdn.net/download/ahualong1/89900184
参考开源项目：GitCode - 全球开发者的开源社区,开源代码托管平台