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本篇內(nèi)容介紹了“Vue如何實(shí)現(xiàn)懸浮框自由移動(dòng)+錄音功能”的有關(guān)知識(shí),在實(shí)際案例的操作過(guò)程中,不少人都會(huì)遇到這樣的困境,接下來(lái)就讓小編帶領(lǐng)大家學(xué)習(xí)一下如何處理這些情況吧!希望大家仔細(xì)閱讀,能夠?qū)W有所成!
1.一個(gè)漂浮的球,在全屏幕中自由移動(dòng)遇到邊邊角角自動(dòng)改變方向 ,自帶動(dòng)畫效果
2.錄音功能,可以錄制用戶的聲音,可以下載為任意格式的音頻文件到本地,也可以通過(guò)二進(jìn)制流發(fā)給后端
由于后端要聲音文件格式wav或者pcm,采樣率16000,所以我改了配置文件,稍后我會(huì)介紹在哪里改,改什么什么樣都是可以的。
注:代碼我已經(jīng)封裝成組件了,下方的代碼可以直接稍作修改后拿去用,需要修改的地方我以截圖的形式貼出來(lái)了。
<template> <!--懸浮小廣告樣式的提示信息--> <div id="thediv" ref="thediv" @mouseover="clearFdAd" @mouseout="starFdAd" > <div style=" overflow: hidden; cursor: pointer; text-align: right; font-size: 0.0625rem; color: #999999; " > <div @click="demo" > <!-- 錄音組件 --> <div v-show="isAudio"> <Audio ></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.$refs.thediv.clientHeight//獲取元素高度 this.Woffset = this.$refs.thediv.offsetWidth // 滾動(dòng)部分跟隨屏幕滾動(dòng) // 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"; // 滾動(dòng)部分不隨屏幕滾動(dòng) 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圖標(biāo) .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>
這個(gè)組件依賴另一個(gè)文件recorder.js,在最下方貼出來(lái)了。
<template> <div> <el-button @click="myrecording" >{{ time }}</el-button> <el-button @click="startPlay" >{{ playing ? "播放" : "暫停" }}</el-button> <el-button @click="delvioce" >刪除</el-button > <audio v-if="fileurl" :src="fileurl" controls="controls" ref="audio" id="myaudio" ></audio> </div> </template> <script> // 引入recorder.js import recording from "@/utils/recorder" export default { data () { return { RecordingSwitch: true, //錄音開(kāi)關(guān) files: "", //語(yǔ)音文件 num: 60, // 按住說(shuō)話時(shí)間 recorder: null, fileurl: "", //語(yǔ)音URL interval: "", //定時(shí)器 time: "點(diǎn)擊說(shuō)話(60秒)", playing: true, } }, methods: { // 點(diǎn)擊錄制 myrecording () { if (this.files === "") { if (this.RecordingSwitch) { this.Start() } else { this.End() } } else if (this.time === "點(diǎn)擊重錄(60秒)") { this.files = "" this.Start() } this.RecordingSwitch = !this.RecordingSwitch }, // 點(diǎn)擊播放 startPlay () { console.dir(this.$refs.audio, '--------------------') if (this.playing) { this.$refs.audio.play() } else { this.$refs.audio.pause() } this.playing = !this.playing }, // 刪除語(yǔ)音 delvioce () { this.fileurl = "" this.files = "" this.num = 60 this.time = "點(diǎn)擊說(shuō)話(60秒)" }, // 清除定時(shí)器 clearTimer () { if (this.interval) { this.num = 60 clearInterval(this.interval) } }, // 開(kāi)始錄制 Start () { this.clearTimer() recording.get((rec) => { // 當(dāng)首次按下時(shí),要獲取瀏覽器的麥克風(fēng)權(quán)限,所以這時(shí)要做一個(gè)判斷處理 if (rec) { this.recorder = rec this.interval = setInterval(() => { if (this.num <= 0) { this.recorder.stop() this.num = 60 this.End() } else { this.time = "點(diǎn)擊結(jié)束(" + this.num + "秒)" this.recorder.start() this.num-- } }, 1000) } }) }, // 停止錄制 End () { this.clearTimer() if (this.recorder) { this.recorder.stop() // 重置說(shuō)話時(shí)間 this.num = 60 this.time = "點(diǎn)擊重錄(60秒)" // 獲取語(yǔ)音二進(jìn)制文件 let bold = this.recorder.getBlob() // 將獲取的二進(jìn)制對(duì)象轉(zhuǎn)為二進(jìn)制文件流 let files = new File([bold], "test.wav", { type: "audio/wav", lastModified: Date.now(), }) this.files = files console.log(this.files, '----------', bold, '---------------', this.recorder) //獲取音頻時(shí)長(zhǎng) let fileurl = URL.createObjectURL(files) this.fileurl = fileurl let audioElement = new Audio(fileurl) let duration audioElement.addEventListener("loadedmetadata", function (_event) { duration = audioElement.duration console.log("視頻時(shí)長(zhǎng):" + duration, files) }) var downloadAnchorNode = document.createElement('a') downloadAnchorNode.setAttribute("href", fileurl) downloadAnchorNode.setAttribute("download", 'ssss') downloadAnchorNode.click() downloadAnchorNode.remove() this.$message.success("正在下載中,請(qǐng)稍后...") } }, }, }; </script> <style lang="less" > </style>
// 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 // 采樣數(shù)位 8, 16 config.sampleRate = config.sampleRate || (16000) // 采樣率(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, // 錄音文件長(zhǎng)度 buffer: [], // 錄音緩存 inputSampleRate: context.sampleRate, // 輸入采樣率 inputSampleBits: 16, // 輸入采樣數(shù)位 8, 16 outputSampleRate: config.sampleRate, // 輸出采樣率 oututSampleBits: config.sampleBits, // 輸出采樣數(shù)位 8, 16 input: function (data) { this.buffer.push(new Float32Array(data)) this.size += data.length }, compress: function () { // 合并壓縮 // 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 } // 壓縮 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// 單聲道 let offset = 0 let writeString = function (str) { for (let i = 0; i < str.length; i++) { data.setUint8(offset + i, str.charCodeAt(i)) } } // 資源交換文件標(biāo)識(shí)符 writeString('RIFF'); offset += 4 // 下個(gè)地址開(kāi)始到文件尾總字節(jié)數(shù),即文件大小-8 data.setUint32(offset, 36 + dataLength, true); offset += 4 // WAV文件標(biāo)志 writeString('WAVE'); offset += 4 // 波形格式標(biāo)志 writeString('fmt '); offset += 4 // 過(guò)濾字節(jié),一般為 0x10 = 16 data.setUint32(offset, 16, true); offset += 4 // 格式類別 (PCM形式采樣數(shù)據(jù)) data.setUint16(offset, 1, true); offset += 2 // 通道數(shù) data.setUint16(offset, channelCount, true); offset += 2 // 采樣率,每秒樣本數(shù),表示每個(gè)通道的播放速度 data.setUint32(offset, sampleRate, true); offset += 4 // 波形數(shù)據(jù)傳輸率 (每秒平均字節(jié)數(shù)) 單聲道×每秒數(shù)據(jù)位數(shù)×每樣本數(shù)據(jù)位/8 data.setUint32(offset, channelCount * sampleRate * (sampleBits / 8), true); offset += 4 // 快數(shù)據(jù)調(diào)整數(shù) 采樣一次占用字節(jié)數(shù) 單聲道×每樣本的數(shù)據(jù)位數(shù)/8 data.setUint16(offset, channelCount * (sampleBits / 8), true); offset += 2 // 每樣本數(shù)據(jù)位數(shù) data.setUint16(offset, sampleBits, true); offset += 2 // 數(shù)據(jù)標(biāo)識(shí)符 writeString('data'); offset += 4 // 采樣數(shù)據(jù)總數(shù),即數(shù)據(jù)總大小-44 data.setUint32(offset, dataLength, true); offset += 4 // 寫入采樣數(shù)據(jù) 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' }) } } // 開(kāi)始錄音 this.start = function () { audioInput.connect(recorder) recorder.connect(context.destination) } // 停止 this.stop = function () { recorder.disconnect() } // 獲取音頻文件 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()) } // 上傳 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) } // 音頻采集 recorder.onaudioprocess = function (e) { audioData.input(e.inputBuffer.getChannelData(0)) // record(e.inputBuffer.getChannelData(0)); } } // 拋出異常 HZRecorder.throwError = function (message) { alert(message) throw new function () { this.toString = function () { return message } }() } // 是否支持錄音 HZRecorder.canRecording = (navigator.getUserMedia != null) // 獲取錄音機(jī) HZRecorder.get = function (callback, config) { if (callback) { if (navigator.getUserMedia) { console.log(navigator) navigator.getUserMedia( { audio: true } // 只啟用音頻 , 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('用戶拒絕提供信息。') break case 'NOT_SUPPORTED_ERROR': case 'NotSupportedError': HZRecorder.throwError('瀏覽器不支持硬件設(shè)備。') break case 'MANDATORY_UNSATISFIED_ERROR': case 'MandatoryUnsatisfiedError': HZRecorder.throwError('無(wú)法發(fā)現(xiàn)指定的硬件設(shè)備。') break default: HZRecorder.throwError('無(wú)法打開(kāi)麥克風(fēng)。異常信息:' + (error.code || error.name)) break } }) } else { HZRecorder.throwErr('當(dāng)前瀏覽器不支持錄音功能。'); return } } } export default HZRecorder
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