效果如下：
主要功能：
1.一个漂浮的球，在全屏幕中自由移动遇到边边角角自动改变方向 ，自带动画效果
2.录音功能，可以录制用户的声音，可以下载为任意格式的音频文件到本地，也可以通过二进制流发给后端
由于后端要声音文件格式wav或者pcm,采样率16000，所以我改了配置文件，稍后我会介绍在哪里改，改什么什么样都是可以的。
注：代码我已经封装成组件了，下方的代码可以直接稍作修改后拿去用，需要修改的地方我以截图的形式贴出来了。
实现:
1.封装第一个漂浮组件FloatBall.vue
<template> <!--悬浮小广告样式的提示信息--> <div id="thediv" ref="thediv" style="position: absolute; z-index: 111; left: 0; top: 0" @mouseover="clearFdAd" @mouseout="starFdAd" > <div style=" overflow: hidden; cursor: pointer; text-align: right; font-size: 0.0625rem; color: #999999; " > <div @click="demo" style="position: relative"> <!-- 录音组件 --> <div v-show="isAudio"> <Audio style="position: absolute; top: 10%; right: 20%"></Audio> </div> <div class="loader"> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> </div> <!-- <img src="@/assets/common/loginlogo.png" alt="" srcset="" /> --> </div> </div> <!-- <a href="http://xxxxxx" target="_blank"" ><img src="../../assets/images/tips.png" width="320" border="0" /></a> --> </div> </template> <script> var interval export default { data () { return { isAudio: false, xPos: 0, yPos: 0, xin: true, yin: true, step: 1, delay: 18, height: 0, Hoffset: 0, Woffset: 0, yon: 0, xon: 0, pause: true, thedivShow: true, } }, mounted () { interval = setInterval(this.changePos, this.delay) }, methods: { demo () { this.isAudio = !this.isAudio }, changePos () { let width = document.documentElement.clientWidth let height = document.documentElement.clientHeight this.Hoffset = this.$refs.thediv.clientHeight//获取元素高度 this.Woffset = this.$refs.thediv.offsetWidth // 滚动部分跟随屏幕滚动 // this.$refs.thediv.style.left = (this.xPos + document.body.scrollLeft + document.documentElement.scrollLeft) + "px"; // this.$refs.thediv.style.top = (this.yPos + document.body.scrollTop + document.documentElement.scrollTop) + "px"; // 滚动部分不随屏幕滚动 this.$refs.thediv.style.left = this.xPos + document.body.scrollLeft - 400 + "px" this.$refs.thediv.style.top = this.yPos + document.body.scrollTop + "px" if (this.yon) { this.yPos = this.yPos + this.step } else { this.yPos = this.yPos - this.step } if (this.yPos < 0) { this.yon = 1 this.yPos = 0 } if (this.yPos >= height - this.Hoffset) { this.yon = 0 this.yPos = height - this.Hoffset } if (this.xon) { this.xPos = this.xPos + this.step } else { this.xPos = this.xPos - this.step } if (this.xPos < 0) { this.xon = 1 this.xPos = 0 } if (this.xPos >= width - this.Woffset) { this.xon = 0 this.xPos = width - this.Woffset } }, clearFdAd () { clearInterval(interval) }, starFdAd () { interval = setInterval(this.changePos, this.delay) }, }, }; </script> <style lang="scss" scoped> #thediv { z-index: 100; position: absolute; top: 0.224rem; left: 0.0104rem; height: 0.9583rem; width: 1.4583rem; overflow: hidden; img { width: 100%; height: 100%; } } // 以下是css图标 .loader { width: 100px; height: 100px; padding: 30px; font-size: 10px; background-color: #91cc75; border-radius: 50%; border: 8px solid #20a088; display: flex; align-items: center; justify-content: space-between; animation: loader-animate 1.5s infinite ease-in-out; } @keyframes loader-animate { 45%, 55% { transform: scale(1); } } .loader > span { width: 5px; height: 50%; background-color: #fff; transform: scaleY(0.05) translateX(-5px); animation: span-animate 1.5s infinite ease-in-out; animation-delay: calc(var(--n) * 0.05s); } @keyframes span-animate { 0%, 100% { transform: scaleY(0.05) translateX(-5px); } 15% { transform: scaleY(1.2) translateX(10px); } 90%, 100% { background-color: hotpink; } } .loader > span:nth-child(1) { --n: 1; } .loader > span:nth-child(2) { --n: 2; } .loader > span:nth-child(3) { --n: 3; } .loader > span:nth-child(4) { --n: 4; } .loader > span:nth-child(5) { --n: 5; } .loader > span:nth-child(6) { --n: 6; } .loader > span:nth-child(7) { --n: 7; } .loader > span:nth-child(8) { --n: 8; } .loader > span:nth-child(9) { --n: 9; } .loader > span:nth-child(10) { --n: 10; } </style>
2.封装第二个组件录音组件Audio.vue
这个组件依赖另一个文件recorder.js,在最下方贴出来了。
<template> <div> <el-button @click="myrecording" style="margin-left: 1rem">{{ time }}</el-button> <el-button @click="startPlay" style="margin-left: 1rem">{{ playing ? "播放" : "暂停" }}</el-button> <el-button @click="delvioce" style="margin-left: 1rem; color: black" >删除</el-button > <audio v-if="fileurl" :src="fileurl" controls="controls" style="display: none" ref="audio" id="myaudio" ></audio> </div> </template> <script> // 引入recorder.js import recording from "@/utils/recorder" export default { data () { return { RecordingSwitch: true, //录音开关 files: "", //语音文件 num: 60, // 按住说话时间 recorder: null, fileurl: "", //语音URL interval: "", //定时器 time: "点击说话(60秒)", playing: true, } }, methods: { // 点击录制 myrecording () { if (this.files === "") { if (this.RecordingSwitch) { this.Start() } else { this.End() } } else if (this.time === "点击重录(60秒)") { this.files = "" this.Start() } this.RecordingSwitch = !this.RecordingSwitch }, // 点击播放 startPlay () { console.dir(this.$refs.audio, '--------------------') if (this.playing) { this.$refs.audio.play() } else { this.$refs.audio.pause() } this.playing = !this.playing }, // 删除语音 delvioce () { this.fileurl = "" this.files = "" this.num = 60 this.time = "点击说话(60秒)" }, // 清除定时器 clearTimer () { if (this.interval) { this.num = 60 clearInterval(this.interval) } }, // 开始录制 Start () { this.clearTimer() recording.get((rec) => { // 当首次按下时，要获取浏览器的麦克风权限，所以这时要做一个判断处理 if (rec) { this.recorder = rec this.interval = setInterval(() => { if (this.num <= 0) { this.recorder.stop() this.num = 60 this.End() } else { this.time = "点击结束（" + this.num + "秒）" this.recorder.start() this.num-- } }, 1000) } }) }, // 停止录制 End () { this.clearTimer() if (this.recorder) { this.recorder.stop() // 重置说话时间 this.num = 60 this.time = "点击重录(60秒)" // 获取语音二进制文件 let bold = this.recorder.getBlob() // 将获取的二进制对象转为二进制文件流 let files = new File([bold], "test.wav", { type: "audio/wav", lastModified: Date.now(), }) this.files = files console.log(this.files, '----------', bold, '---------------', this.recorder) //获取音频时长 let fileurl = URL.createObjectURL(files) this.fileurl = fileurl let audioElement = new Audio(fileurl) let duration audioElement.addEventListener("loadedmetadata", function (_event) { duration = audioElement.duration console.log("视频时长:" + duration, files) }) var downloadAnchorNode = document.createElement('a') downloadAnchorNode.setAttribute("href", fileurl) downloadAnchorNode.setAttribute("download", 'ssss') downloadAnchorNode.click() downloadAnchorNode.remove() this.$message.success("正在下载中,请稍后...") } }, }, }; </script> <style lang="less" > </style>
recorder.js
// 兼容 window.URL = window.URL || window.webkitURL navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia let HZRecorder = function (stream, config) { config = config || {} config.sampleBits = config.sampleBits || 8 // 采样数位 8, 16 config.sampleRate = config.sampleRate || (16000) // 采样率(1/6 44100) let context = new (window.webkitAudioContext || window.AudioContext)() let audioInput = context.createMediaStreamSource(stream) let createScript = context.createScriptProcessor || context.createJavaScriptNode let recorder = createScript.apply(context, [4096, 1, 1]) let audioData = { size: 0, // 录音文件长度 buffer: [], // 录音缓存 inputSampleRate: context.sampleRate, // 输入采样率 inputSampleBits: 16, // 输入采样数位 8, 16 outputSampleRate: config.sampleRate, // 输出采样率 oututSampleBits: config.sampleBits, // 输出采样数位 8, 16 input: function (data) { this.buffer.push(new Float32Array(data)) this.size += data.length }, compress: function () { // 合并压缩 // 合并 let data = new Float32Array(this.size) let offset = 0 for (let i = 0; i < this.buffer.length; i++) { data.set(this.buffer[i], offset) offset += this.buffer[i].length } // 压缩 let compression = parseInt(this.inputSampleRate / this.outputSampleRate) let length = data.length / compression let result = new Float32Array(length) let index = 0; let j = 0 while (index < length) { result[index] = data[j] j += compression index++ } return result }, encodeWAV: function () { let sampleRate = Math.min(this.inputSampleRate, this.outputSampleRate) let sampleBits = Math.min(this.inputSampleBits, this.oututSampleBits) let bytes = this.compress() let dataLength = bytes.length * (sampleBits / 8) let buffer = new ArrayBuffer(44 + dataLength) let data = new DataView(buffer) let channelCount = 1// 单声道 let offset = 0 let writeString = function (str) { for (let i = 0; i < str.length; i++) { data.setUint8(offset + i, str.charCodeAt(i)) } } // 资源交换文件标识符 writeString('RIFF'); offset += 4 // 下个地址开始到文件尾总字节数,即文件大小-8 data.setUint32(offset, 36 + dataLength, true); offset += 4 // WAV文件标志 writeString('WAVE'); offset += 4 // 波形格式标志 writeString('fmt '); offset += 4 // 过滤字节,一般为 0x10 = 16 data.setUint32(offset, 16, true); offset += 4 // 格式类别 (PCM形式采样数据) data.setUint16(offset, 1, true); offset += 2 // 通道数 data.setUint16(offset, channelCount, true); offset += 2 // 采样率,每秒样本数,表示每个通道的播放速度 data.setUint32(offset, sampleRate, true); offset += 4 // 波形数据传输率 (每秒平均字节数) 单声道×每秒数据位数×每样本数据位/8 data.setUint32(offset, channelCount * sampleRate * (sampleBits / 8), true); offset += 4 // 快数据调整数 采样一次占用字节数 单声道×每样本的数据位数/8 data.setUint16(offset, channelCount * (sampleBits / 8), true); offset += 2 // 每样本数据位数 data.setUint16(offset, sampleBits, true); offset += 2 // 数据标识符 writeString('data'); offset += 4 // 采样数据总数,即数据总大小-44 data.setUint32(offset, dataLength, true); offset += 4 // 写入采样数据 if (sampleBits === 8) { for (let i = 0; i < bytes.length; i++, offset++) { let s = Math.max(-1, Math.min(1, bytes[i])) let val = s < 0 ? s * 0x8000 : s * 0x7FFF val = parseInt(255 / (65535 / (val + 32768))) data.setInt8(offset, val, true) } } else { for (let i = 0; i < bytes.length; i++, offset += 2) { let s = Math.max(-1, Math.min(1, bytes[i])) data.setInt16(offset, s < 0 ? s * 0x8000 : s * 0x7FFF, true) } } return new Blob([data], { type: 'audio/mp3' }) } } // 开始录音 this.start = function () { audioInput.connect(recorder) recorder.connect(context.destination) } // 停止 this.stop = function () { recorder.disconnect() } // 获取音频文件 this.getBlob = function () { this.stop() return audioData.encodeWAV() } // 回放 this.play = function (audio) { let downRec = document.getElementById('downloadRec') downRec.href = window.URL.createObjectURL(this.getBlob()) downRec.download = new Date().toLocaleString() + '.mp3' audio.src = window.URL.createObjectURL(this.getBlob()) } // 上传 this.upload = function (url, callback) { let fd = new FormData() fd.append('audioData', this.getBlob()) let xhr = new XMLHttpRequest() /* eslint-disable */ if (callback) { xhr.upload.addEventListener('progress', function (e) { callback('uploading', e) }, false) xhr.addEventListener('load', function (e) { callback('ok', e) }, false) xhr.addEventListener('error', function (e) { callback('error', e) }, false) xhr.addEventListener('abort', function (e) { callback('cancel', e) }, false) } /* eslint-disable */ xhr.open('POST', url) xhr.send(fd) } // 音频采集 recorder.onaudioprocess = function (e) { audioData.input(e.inputBuffer.getChannelData(0)) // record(e.inputBuffer.getChannelData(0)); } } // 抛出异常 HZRecorder.throwError = function (message) { alert(message) throw new function () { this.toString = function () { return message } }() } // 是否支持录音 HZRecorder.canRecording = (navigator.getUserMedia != null) // 获取录音机 HZRecorder.get = function (callback, config) { if (callback) { if (navigator.getUserMedia) { console.log(navigator) navigator.getUserMedia( { audio: true } // 只启用音频 , function (stream) { let rec = new HZRecorder(stream, config) callback(rec) } , function (error) { console.log(error) switch (error.code || error.name) { case 'PERMISSION_DENIED': case 'PermissionDeniedError': HZRecorder.throwError('用户拒绝提供信息。') break case 'NOT_SUPPORTED_ERROR': case 'NotSupportedError': HZRecorder.throwError('浏览器不支持硬件设备。') break case 'MANDATORY_UNSATISFIED_ERROR': case 'MandatoryUnsatisfiedError': HZRecorder.throwError('无法发现指定的硬件设备。') break default: HZRecorder.throwError('无法打开麦克风。异常信息:' + (error.code || error.name)) break } }) } else { HZRecorder.throwErr('当前浏览器不支持录音功能。'); return } } } export default HZRecorder
