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122 lines
3.5 KiB
122 lines
3.5 KiB
1 year ago
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/**
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* 路由跳转方法，该方法相对于直接使用uni.xxx的好处是使用更加简单快捷
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* 并且带有路由拦截功能
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*/
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class Router {
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constructor() {
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// 原始属性定义
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this.config = {
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type: 'navigateTo',
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url: '',
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delta: 1, // navigateBack页面后退时,回退的层数
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params: {}, // 传递的参数
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animationType: 'pop-in', // 窗口动画,只在APP有效
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animationDuration: 300, // 窗口动画持续时间,单位毫秒,只在APP有效
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intercept: false, // 是否需要拦截
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}
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// 因为route方法是需要对外赋值给另外的对象使用，同时route内部有使用this，会导致route失去上下文
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// 这里在构造函数中进行this绑定
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this.route = this.route.bind(this)
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}
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// 判断url前面是否有"/"，如果没有则加上，否则无法跳转
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addRootPath(url) {
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return url[0] === '/' ? url : `/${url}`
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}
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// 整合路由参数
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mixinParam(url, params) {
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url = url && this.addRootPath(url)
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// 使用正则匹配，主要依据是判断是否有"/","?","="等，如“/page/index/index?name=mary"
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// 如果有url中有get参数，转换后无需带上"?"
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let query = ''
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if (/.*\/.*\?.*=.*/.test(url)) {
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// object对象转为get类型的参数
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query = uni.$u.queryParams(params, false);
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// 因为已有get参数,所以后面拼接的参数需要带上"&"隔开
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return url += "&" + query
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} else {
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// 直接拼接参数，因为此处url中没有后面的query参数，也就没有"?/&"之类的符号
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query = uni.$u.queryParams(params);
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return url += query
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}
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}
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// 对外的方法名称
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async route(options = {}, params = {}) {
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// 合并用户的配置和内部的默认配置
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let mergeConfig = {}
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if (typeof options === 'string') {
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// 如果options为字符串，则为route(url, params)的形式
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mergeConfig.url = this.mixinParam(options, params)
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mergeConfig.type = 'navigateTo'
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} else {
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mergeConfig = uni.$u.deepClone(options, this.config)
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// 否则正常使用mergeConfig中的url和params进行拼接
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mergeConfig.url = this.mixinParam(options.url, options.params)
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}
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if(params.intercept) {
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this.config.intercept = params.intercept
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}
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// params参数也带给拦截器
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mergeConfig.params = params
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// 合并内外部参数
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mergeConfig = uni.$u.deepMerge(this.config, mergeConfig)
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// 判断用户是否定义了拦截器
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if (typeof uni.$u.routeIntercept === 'function') {
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// 定一个promise，根据用户执行resolve(true)或者resolve(false)来决定是否进行路由跳转
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const isNext = await new Promise((resolve, reject) => {
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uni.$u.routeIntercept(mergeConfig, resolve)
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})
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// 如果isNext为true，则执行路由跳转
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isNext && this.openPage(mergeConfig)
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} else {
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this.openPage(mergeConfig)
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}
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}
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// 执行路由跳转
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openPage(config) {
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// 解构参数
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const {
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url,
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type,
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delta,
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animationType,
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animationDuration
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} = config
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if (config.type == 'navigateTo' || config.type == 'to') {
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uni.navigateTo({
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url,
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animationType,
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animationDuration
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});
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}
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if (config.type == 'redirectTo' || config.type == 'redirect') {
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uni.redirectTo({
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url
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});
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}
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if (config.type == 'switchTab' || config.type == 'tab') {
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uni.switchTab({
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url
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});
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}
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if (config.type == 'reLaunch' || config.type == 'launch') {
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uni.reLaunch({
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url
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});
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}
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if (config.type == 'navigateBack' || config.type == 'back') {
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uni.navigateBack({
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delta
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});
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}
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}
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}
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export default (new Router()).route
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