【uniapp】视频分享预览小程序

川长思鸟来 2023-10-12 08:51 49阅读 0赞

六一收到个不同以往的需求，我的指导老师最近有点忙，让我们帮忙做一个可以通过二维码预览视频的小程序  
![在这里插入图片描述][ab127f214fa74b9d880c0e7f9c939a3c.png]

收到需求后，因为只是临时用一下，不打算写一套完整的系统，所以大概的思路就是，其他成员将视频通过ftp传入我的服务器上，我通过uniapp将视频路径写死在index页面上，跳转时将`url`中的参数传入到下一个页面即可，视频播放页面通过拼接路径最后得到完整的src资源文件，在写入data完成渲染即可，同理在点击生成二维码时将参数带着去新的页面进行处理，得到该视频播放页面的url后利用qrcode进行渲染输出二维码

basic:[
    {
        "name":"蔡晓东英雄事迹","url":"/pages/video/video?url=1.mp4"},
    {
        "name":"云南传统手工业银器制作","url":"/pages/video/video?url=2.mp4"},
    {
        "name":"高山流水的典故","url":"/pages/video/video?url=3.mp4"}
    '''
    '''

## index页面 ##

点击预览，跳转到视频播放页面  
点击qrcode，跳转到二维码生成页面  
![在这里插入图片描述][c0ff1d060e6047d483569cf0acdb47b5.png]

<template>
    	<view>
    		<view class="b-flex-x b-bg-white b-p-32">
    			<image src="/static/logo.jpg" mode="aspectFit" class="logo b-radius-8"></image>
    			<view class="b-flex-item b-ml-32">
    				<view class="b-text-B b-text-48 b-text-black">B-ui v{
        {
        BuiVersion}}</view>
    				<view class="b-font-24 b-mt-8 b-text-black-dd">@园游会永不打烊</view>
    			</view>
    		</view>
    		
    		<view class="b-pt-32 b-pr-32 b-pl-32 b-pb-24 b-text-black-dd">视频列表</view>
    		<view class="b-list-user b-bg-white">
    			<view class="b-list-item" 
    				v-for="(item,index) in basic" :key="index">
    				<view class="b-flex-x">
    					<view class="b-icon b-text-black-d">
    						<image src="/static/shipin-.png" mode="widthFix" style="width: 50rpx;height: 50rpx;"></image>
    					</view>
    					<view class="b-ml-16">{
        {
        item.name}}</view>
    				</view>
    				<view class="btns-box">
    					<button class="b-btn b-btn-blue b-btn-sm" @click="jump(item.url)">观看</button>
    					<button class="b-btn b-btn-blue b-btn-sm" style="margin-left: 10rpx;" @click="jumps(item.url)">qrcode</button>
    					</view>
    			</view>
    		</view>
    		
    		<view class="b-p-32 b-text-black-dd b-text-c b-text-20">
    			<view>欢迎使用 B-ui </view>
    			<view class="b-mt-8">© 园游会永不打烊</view>
    		</view>
    	</view>
    </template>
    
    <script>
    	export default {
        
    		
    		data() {
        
    			return {
        
    				BuiVersion:"",
    				basic:[
    					{
        "name":"蔡晓东英雄事迹","url":"/pages/video/video?url=1.mp4"},
    					{
        "name":"云南传统手工业银器制作","url":"/pages/video/video?url=2.mp4"},
    					{
        "name":"高山流水的典故","url":"/pages/video/video?url=3.mp4"},
    					{
        "name":"百里负米的典故","url":"/pages/video/video?url=4.mp4"},
    					{
        "name":"环境保护相关视频或垃圾分类","url":"/pages/video/video?url=5.mp4"},
    					{
        "name":"消防人员负重前行的相关","url":"/pages/video/video?url=6.mp4"},
    					{
        "name":"介绍大学生打游戏耽误学业","url":"/pages/video/video?url=7.mp4"},
    					{
        "name":"介绍大学生因作弊受处分","url":"/pages/video/video?url=8.mp4"},
    					{
        "name":"介绍大学生团队创新获奖","url":"/pages/video/video?url=9.mp4"},
    					{
        "name":"介绍网络并非法外之地","url":"/pages/video/video?url=10.mp4"},
    					{
        "name":"中国天眼技术介绍","url":"/pages/video/video?url=11.mp4"},
    					{
        "name":"介绍大学生网络犯罪","url":"/pages/video/video?url=12.mp4"},
    					{
        "name":"介绍祖国大好河山","url":"/pages/video/video?url=13.mp4"},
    					{
        "name":"介绍中国少数民族一家亲","url":"/pages/video/video?url=14.mp4"},
    					],
    		
    		}},
    		onLoad() {
        
    			this.BuiVersion = uni.Bui.version;
    		},
    		methods: {
        
    	jump(url){
        
    		uni.navigateTo({
        
    			url:url
    		})
    	},
    	jumps(url){
        
    		console.log(url)
    		uni.navigateTo({
        
    			url:'/pages/qrcode/qrcode?url='+url
    		})
    	}
    			}
    	}
    </script>
    
    <style lang="scss">
    	.logo{
        
    		width: 140rpx;
    		height: 140rpx;
    	}
    </style>

## 视频播放页面 ##

资源渲染后即可直接播放，这部分的代码找了好久，起初以为uniapp没有支持网页播放的能力，需要用第三方的。

![在这里插入图片描述][7c4c39ea725e4c52967cfee49e0a4261.png]

<template>
        <view>
            <view class="uni-padding-wrap uni-common-mt" style="display: flex;flex-direction: column;align-items: center;">
                <view>
    				 <video id="myVideo" :src="src"
    				                    @error="videoErrorCallback" :danmu-list="danmuList" enable-danmu danmu-btn controls></video>
    				            
             
                </view>
                
                <view class="uni-list uni-common-mt">
                    <view class="uni-list-cell">
                       
                        <view class="uni-list-cell-db">
                            <input v-model="danmuValue" class="uni-input" type="text" placeholder="在此处输入弹幕内容" />
                        </view>
                    </view>
                </view>
                <view class="uni-btn-v">
                    <button @click="sendDanmu" class="page-body-button">发送弹幕</button>
                </view>
                
            </view>
        </view>
    </template>
    
    <script>
    export default {
        
        data() {
        
            return {
        
                src: '',
                danmuList: [{
        
                        text: '第 1s 出现的弹幕',
                        color: '#ff0000',
                        time: 1
                    },
                    {
        
                        text: '第 3s 出现的弹幕',
                        color: '#ff00ff',
                        time: 3
                    }
                ],
                danmuValue: ''
            }
        },
        onReady: function(res) {
        
            // #ifndef MP-ALIPAY
            this.videoContext = uni.createVideoContext('myVideo')
            // #endif
        },
    	onLoad(options) {
        
    		this.src="http://qrcode.taila.club/video/"+options.url
    	},
        methods: {
        
            sendDanmu: function() {
        
                this.videoContext.sendDanmu({
        
                    text: this.danmuValue,
                    color: this.getRandomColor()
                });
                this.danmuValue = '';
            },
            videoErrorCallback: function(e) {
        
                // uni.showModal({
        
                //     content: e.target.errMsg,
                //     showCancel: false
                // })
            },
            getRandomColor: function() {
        
                const rgb = []
                for (let i = 0; i < 3; ++i) {
        
                    let color = Math.floor(Math.random() * 256).toString(16)
                    color = color.length == 1 ? '0' + color : color
                    rgb.push(color)
                }
                return '#' + rgb.join('')
            }
        }
    }
    </script>

## qrcode页面 ##

可自定义中心图标logo  
![在这里插入图片描述][3d71cbb2b25e41a89c6f0328fa85da45.png]

<template xlang="wxml">
    	<view class="container">
    		<view class="qrimg">
    			<view class="qrimg-i">
    				<tki-qrcode v-if="ifShow" cid="qrcode1" ref="qrcode" :val="val" :size="size" :unit="unit" :background="background" :foreground="foreground" :pdground="pdground" :icon="icon" :iconSize="iconsize" :lv="lv" :onval="onval" :loadMake="loadMake" :usingComponents="true" @result="qrR" />
    			</view>
    			
    		</view>
    		
    		
    		<view class="uni-padding-wrap uni-common-mt">
    			<view class="uni-title">设置二维码大小</view>
    		</view>
    		<view class="body-view">
    			<slider :value="size" @change="sliderchange" min="50" max="500" show-value />
    		</view>
    		<view class="uni-padding-wrap">
    			<view class="btns">
    				<button type="primary" @tap="selectIcon">选择二维码图标</button>
    				<button type="primary" @tap="creatQrcode">生成二维码</button>
    				<button type="primary" @tap="saveQrcode">保存到图库</button>
    		
    			</view>
    		</view>
    	</view>
    </template>
    <script>
    import tkiQrcode from '@/components/tki-qrcode/tki-qrcode.vue'
    export default {
        
    	data() {
        
    		return {
        
    			ifShow: true,
    			val: 'http://www.taila.club', // 要生成的二维码值
    			size: 300, // 二维码大小
    			unit: 'upx', // 单位
    			background: '#ffffff', // 背景色
    			foreground: '#252625', // 前景色
    			pdground: '#32dbc6', // 角标色
    			icon: '/static/logo.jpg', // 二维码图标
    			iconsize: 40, // 二维码图标大小
    			lv: 3, // 二维码容错级别 ， 一般不用设置，默认就行
    			onval: false, // val值变化时自动重新生成二维码
    			loadMake: true, // 组件加载完成后自动生成二维码
    			src: '' // 二维码生成后的图片地址或base64
    		}
    	},
    	methods: {
        
    		sliderchange(e) {
        
    			this.size = e.detail.value
    		},
    		creatQrcode() {
        
    			this.$refs.qrcode._makeCode()
    		},
    		saveQrcode() {
        
    			this.$refs.qrcode._saveCode()
    		},
    		qrR(res) {
        
    			this.src = res
    		},
    		clearQrcode() {
        
    			this.$refs.qrcode._clearCode()
    			this.val = ''
    		},
    		ifQrcode() {
        
    			this.ifShow = !this.ifShow
    		},
    		selectIcon() {
        
    			let that = this
    			uni.chooseImage({
        
    				count: 1, //默认9
    				sizeType: ['original', 'compressed'], //可以指定是原图还是压缩图，默认二者都有
    				sourceType: ['album'], //从相册选择
    				success: function (res) {
        
    					that.icon = res.tempFilePaths[0]
    					setTimeout(() => {
        
    						that.creatQrcode()
    					}, 100);
    					// console.log(res.tempFilePaths);
    				}
    			});
    		}
    	},
    	components: {
        
    		tkiQrcode
    	},
    	onLoad(options) {
        
    		let that = this;
    		that.val="http://qrcode.taila.club/#"+options.url
    	   
    	},
    }
    </script>
    
    <style>
    /* @import "../../../common/icon.css"; */
    .container {
        
    	display: flex;
    	flex-direction: column;
    	width: 100%;
    }
    
    .qrimg {
        
    	display: flex;
    	justify-content: center;
    }
    .qrimg-i{
        
    	margin-right: 10px;
    }
    
    slider {
        
    	width: 100%;
    }
    
    input {
        
    	width: 100%;
    	margin-bottom: 20upx;
    }
    
    .btns {
        
    	display: flex;
    	flex-direction: column;
    	width: 100%;
    }
    
    button {
        
    	width: 100%;
    	margin-top: 10upx;
    }
    </style>

完整代码包，已经打包上传，需要的请后面看评论区！

[ab127f214fa74b9d880c0e7f9c939a3c.png]: https://img-blog.csdnimg.cn/ab127f214fa74b9d880c0e7f9c939a3c.png
[c0ff1d060e6047d483569cf0acdb47b5.png]: https://img-blog.csdnimg.cn/c0ff1d060e6047d483569cf0acdb47b5.png
[7c4c39ea725e4c52967cfee49e0a4261.png]: https://img-blog.csdnimg.cn/7c4c39ea725e4c52967cfee49e0a4261.png
[3d71cbb2b25e41a89c6f0328fa85da45.png]: https://img-blog.csdnimg.cn/3d71cbb2b25e41a89c6f0328fa85da45.png