详解uniapp页面跳转URL传参大坑
作者:未月廿三
本文主要介绍了详解uniapp页面跳转URL传参大坑,文中通过示例代码介绍的非常详细,具有一定的参考价值,感兴趣的小伙伴们可以参考一下
案例
展示电影详情,传递电影的id.从search.vue传递到movie.vue
methods: { showMovie(e){ var trailerid = e.currentTarget.dataset.trailerid; // console.log(trailerid); uni.navigateTo({ url: '../movie/movie?trailerId='+trailerid, success: res => {}, fail: () => {}, complete: () => {} }); } }
search.vue全部文件
<template> <view class="page"> <view class="search-block"> <view class="search-ico-wrapper"> <image src="../../static/icos/search.png" class="search-ico"></image> </view> <input type="text" value="" placeholder="请输入电影名称" maxlength="10" class="search-text" confirm-type="search" @confirm="searchMe" /> </view> <view class="movie-list page-block"> <view v-for="movie in resultList" :key="movie.id" class="movie-wrapper"> <image :src="movie.cover" :data-trailerId="movie.id" @click="showMovie" class="poster"></image> </view> <!-- <view class="movie-wrapper"> <image src="../../static/poster/civilwar.jpg" class="poster"></image> </view> --> </view> <view class="bottom-tip" v-if="show"> 亲,已经到底了! </view> </view> </template> <script> import {DataMixin} from "../../common/DataMixin.js" export default { mixins:[DataMixin], data() { return { keyWords: '', show: false, resultList: [] } }, onLoad() { this.resultList = this.list; }, onPullDownRefresh(e) { uni.showLoading({ mask: true }); uni.showNavigationBarLoading(); this.resultList = this.list; this.show = false; this.queryByKeyWords(); uni.stopPullDownRefresh(); uni.hideLoading(); uni.hideNavigationBarLoading(); }, onReachBottom() { uni.showLoading({ mask: true }); uni.showNavigationBarLoading(); this.resultList = [...this.list, ...this.appendList]; this.show = true; uni.stopPullDownRefresh(); uni.hideLoading(); uni.hideNavigationBarLoading(); }, methods: { showMovie(e){ var trailerid = e.currentTarget.dataset.trailerid; uni.navigateTo({ url: `../movie/movie?trailerId=${trailerid}`, success: res => {}, fail: () => {}, complete: () => {} }); }, queryByKeyWords(){ var tempList = [...this.list, ...this.appendList]; this.resultList = []; if (this.keyWords) { tempList.forEach(movie => { if (movie.name.indexOf(this.keyWords) != -1) { this.resultList.push(movie) } }) } else { this.resultList = this.list; } }, searchMe(e) { this.show = false; var value = e.detail.value; this.keyWords = value; this.queryByKeyWords(); } } } </script> <style> @import url("search.css"); </style>
movie接收参数
<template> <view class="page"> <!-- 视频播放start --> <view class="player"><video :src="movieSingle.trailer" :poster="movieSingle.poster" class="movie" controls></video></view> <!-- 视频播放end --> <!-- 影片基本信息start --> <view class="movie-info"> <image :src="movieSingle.cover" class="cover"></image> <view class="movie-desc"> <view class="title">{{ movieSingle.name }}</view> <view class="basic-info">{{ movieSingle.basicInfo }}</view> <view class="basic-info">{{ movieSingle.originalName }}</view> <view class="basic-info">{{ movieSingle.totalTime }}</view> <view class="basic-info">{{ movieSingle.releaseDate }}</view> <view class="score-block"> <view class="big-score"> <view class="score-words">综合评分:</view> <view class="movie-score">{{ movieSingle.score }}</view> </view> <view class="score-stars"> <block v-if="movieSingle.score >= 0"><trailer-stars :innerScore="movieSingle.score" showNum="0"></trailer-stars></block> <view class="prise-counts">{{ movieSingle.priseCounts }}点赞</view> </view> </view> </view> </view> <!-- 影片基本信息end --> </view> </template> <script> import trailerStars from '../../components/trailerStars/trailerStars.vue'; import { DataMixin } from '../../common/DataMixin.js'; export default { name: '', mixins: [DataMixin], components: { trailerStars }, data() { return { movieSingle: {}, trailerId: '' }; }, onLoad(params) { this.trailerId = params.trailerId; var tempList = [...this.list, ...this.appendList]; tempList.forEach(movie => { if (movie.id == this.trailerId) { this.movieSingle = movie; } }); }, methods: {} }; </script> <style> @import url('movie.css'); </style>
详解
1.因为引入了组件trailerStars,此组件依赖onLoad接收的trailerId,然后去查询获取movie的详情.
2.此时trailerStars组件已经加载完毕,但是movie详情还没获取,就会产生movie.score为undefined的情况,此时需要处理
处理
首先只有movieSingle.socre >= 0时才加载组件
<block v-if="movieSingle.socre >= 0"><trailer-stars :innerScore="movieSingle.socre" showNum="0"></trailer-stars></block>
同时,trailerStars加载的时候需要放在mounted中加载
<template> <view class="movie-score-wrapper"> <image v-for="yellow in yelloScore" src="../../static/icos/star-yellow.png" class="star-ico"></image> <image v-for="gray in grayScore" src="../../static/icos/star-gray.png" class="star-ico"></image> <view class="movie-score" v-if="showNum==1">{{innerScore}}</view> </view> </view> </template> <script> export default { name: "trailerStars", props: { innerScore: 0, //外部传入的分数 showNum: 0, //是否显示,1显示,0不显示 }, data() { return { yelloScore: 0, grayScore: 0, } }, mounted() { console.log("this.innerScore=" + this.innerScore) var tempScore = 0; if (this.innerScore != null && this.innerScore != undefined && this.innerScore != '') { tempScore = this.innerScore; } var yelloScore = parseInt(tempScore / 2); var grayScore = 5 - yelloScore; this.yelloScore = yelloScore; this.grayScore = grayScore; } } </script> <style> .movie-score-wrapper { display: flex; flex-direction: row; } .star-ico { width: 20rpx; height: 20rpx; margin-top: 6rpx; } .movie-score { font-size: 12px; color: #808080; margin-left: 8rpx; } </style>
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