注意：只能真机调试预览
<template>
<view class="demo">
<!-- <status-bar title="测试"></status-bar> -->
<view class="activity_enclosure margin-top100" v-if="attachmentTemplateList.length > 0">
<view class="top_box">
<view class="top_box_circle">
<view class="min_circle_1"></view>
<view class="min_circle_2"></view>
</view>
<view class="top_box_text">附件:{
{schedule}}%</view>
</view>
<view class="bottom_box">
<view class="enclosure_box" v-if="attachmentTemplateList.length > 0">
<view class="enclosure_item" v-for="(item, index) in attachmentTemplateList" :key="index">
<text>{
{ index + 1 }}、</text>
<text>{
{ item.title }}</text>
<text class="" v-if="item.id">（必须填写并上传）</text>
<text class="">:</text>
<view class="preview_box" @click="previewFile1(item)">点击预览</view>
<!-- <view class="preview_box" v-else @click="previewFile(item)">不可预览</view> -->
</view>
<!-- item.template 这是预览的文件 -->
</view>
<view v-else class="no_enclosure_box">暂无信息</view>
</view>
</view>
</view>
</template>
<script>
export default {
components: {
},
data() {
return {
attachmentTemplateList: [{
title: 'pdf',
id: 1,
pdf:'https://images.lyyouyue.com/8793216826490707576391.pdf',
template: 'https://curriculum-image.yizhiweixin.com/yizhiClassroom/saveLesson/material/20230310152419_RpDnjKaaa.pdf',
}, {
title: 'mp4视频',
id: 2,
template: 'https://system.lyyouyue.com/video/16822330115334982.mp4',
}, {
title: 'mp3音频',
id: 20,
template: 'https://downsc.chinaz.net/Files/DownLoad/sound1/202205/y819.mp3',
}, {
title: '图片',
id: 3,
template: 'http://img.touxiangwu.com/2020/3/uq6Bja.jpg',
}, {
title: 'rar压缩包-这个预览不行',
id: 4,
template: 'https://downsc.chinaz.net/Files/DownLoad/website/mojocosmetics.us.rar',
}, {
title: 'xls文件',
id: 5,
template: 'https://images.lyyouyue.com/8287616822323292992223.xls',
}, {
title: 'docx文件',
id: 6,
template: 'https://images.lyyouyue.com/8551716822325882022384.docx',
}],
schedule: 0, //下载进度1-100%
}
//
},
// 侦听器
watch: {
},
// 计算属性
computed: {
},
//组件创建
created() {
},
// 页面加载
onLoad(e) {
},
// 页面显示
onShow() {
},
// 方法
methods: {
// 预览图片和文件成功
previewFile1(item) {
// 流程步骤: 利用下载文件功能 先生成临时文件 - 调用api打开临时文件里面的内容,从而生成预览的效果,但是这个未能真实的下载到本地
// 1.pdfUrl 可以直接在浏览器打开 2.一定要在小程序后台配置该pdf的域名 让其可以下载
uni.showLoading({
title: '正在打开...'
});
this.schedule = 0; //载入进度为0
const downloadTask = uni.downloadFile({
url: item.template, // 图片或者文件地址
success: function(res) {
console.log('下载的res', res);
var filePath = res.tempFilePath; // 临时文件存储路径
// 文件打开文件预览
uni.openDocument({
filePath: encodeURI(filePath),
// fileType: 'pdf',
success: function(res) {
uni.hideLoading();
console.log('打开文档成功');
},
fail: function(err) {
uni.hideLoading();
uni.showToast({
title: '打开失败',
duration: 1500,
icon: 'none'
});
console.log('打开失败');
}
});
},
fail: function(err) {
console.log('下载失败原因', err);
uni.hideLoading();
uni.showModal({
title: '您需要授权相册权限',
success(res) {
if (res.confirm) {
uni.openSetting({
success(res) {
},
fail(res) {
console.log(res);
}
});
}
}
});
}
});
downloadTask.onProgressUpdate(res => {
console.log('下载进度' + res.progress);
this.schedule = res.progress
// console.log('已经下载的数据长度' + res.totalBytesWritten);
// console.log('预期需要下载的数据总长度' + res.totalBytesExpectedToWrite);
});
// console.log(item, this.$url(item.template), '加载的当前文件');
// this.$apiGet(`/api/file/download/${item.template}`).then(res => {
// console.log(res, '下载的文件');
// });
},
},
// 页面隐藏
onHide() {
},
// 页面卸载
onUnload() {
},
// 触发下拉刷新
onPullDownRefresh() {
},
// 页面上拉触底事件的处理函数
onReachBottom() {
},
}
</script>
<style lang="scss" scoped>
.demo {
height: 100vh;
overflow: auto;
background-color: #f5f5f5;
color: #FFFFFF;
// 附件
.activity_enclosure {
margin-top: 60rpx;
.top_box {
display: flex;
justify-content: flex-start;
margin-bottom: 18rpx;
.top_box_circle {
margin-right: 22rpx;
width: 32rpx;
display: flex;
justify-content: flex-start;
align-items: center;
.min_circle_1 {
width: 16rpx;
height: 16rpx;
background: rgba(218, 0, 23, 0.7);
border-radius: 50%;
margin-right: -6rpx;
}
.min_circle_2 {
width: 16rpx;
height: 16rpx;
background: rgba(1, 68, 151, 0.7);
border-radius: 50%;
}
}
.top_box_text {
font-size: 36rpx;
font-family: PingFangSC-Medium, PingFang SC;
font-weight: 600;
color: #333333;
}
}
.bottom_box {
.enclosure_box {
.enclosure_item {
margin-bottom: 50rpx;
color: #999999;
.preview_box {
display: inline-block;
width: 140rpx;
height: 40rpx;
padding: 0rpx 14rpx;
background: #e5ecf4;
color: #014497;
border-radius: 8rpx;
margin-left: 12rpx;
}
}
}
.no_enclosure_box {
width: 690rpx;
// height: 48rpx;
// line-height: 48rpx;
font-size: 28rpx;
font-family: PingFangSC-Regular, PingFang SC;
font-weight: 400;
color: #999999;
text-align: center;
}
}
}
}
</style>
