首先我们要做的就是长按录音功能，顺带做了个播放录音带进度条功能，效果图及代码如下：
首先我们要做的效果图就是上图这样，下面就贴代码吧。
wxml:
<view catch:longpress="handleRecordStart" catch:touchmove="handleTouchMove" catch:touchend="handleRecordStop" class="img-content" hoverClass="none" data-key="cover" data-size="1"><image class="icon-img" mode="aspectFill" src="###"></image></view>
录音播放
<!-- 录音 -->
<view class="audio rel" wx:if="{{audiolist.length>0}}"><view class="play abs" catchtap='playAudio' data-src="{{audiolist}}"><!-- <image class="abs play-img" mode="aspectFill" src="https://retail.xiaochengxucms.com/images/12/2018/10/T8A1maB3boAB3A8Sb8yTYBs1b0BmaA.png"></image> --><view wx:if="{{isPlayAudio}}"><image class="abs play-img" mode="aspectFill" src='/longbing_card/resource/images/stop.png' /></view><view wx:else><image class="abs play-img" mode="aspectFill" src='/longbing_card/resource/images/play.png' /></view></view><view class="name abs">{{userName}}</view><view class="flex-time"><view style="font-size: 20rpx;color:#ccc">{{showTime1}}</view><view class='slider'><slider bindchange='sliderChange' activeColor='red' block-size="12" value='{{audioTime}}' /></view><view style="font-size: 20rpx;color:#ccc">{{showTime2}}</view></view>
</view>
录音播放wxss：
.play-img {
width: 62rpx !important;
height: 62rpx !important;
top: 10rpx;
left: 10rpx;
}
.audio {
width: 100%;
height: 112rpx;
background: rgba(230, 67, 64, 0.49);
border-radius: 8rpx;
margin: 10rpx 0;
}
.play {
width: 63rpx;
height: 63rpx;
top: 20rpx;
left: 40rpx;
}
.name {
font-size: 24rpx;
font-family: PingFang SC;
font-weight: 500;
line-height: 42rpx;
color: rgba(255, 255, 255, 1);
top: 14rpx;
left: 160rpx;
}
.flex-time {
width: 70%;
position: absolute;
display: flex;
align-items: center;
justify-content: flex-start;
left: 25%;
bottom: -10rpx;
}
.slider{
width: 60%;
height: 100%;
}
.slider slider{
width: 88%;
margin-left: 8%;
margin-right: 4%;
}
录音js：
// 录音
handleRecordStart: function(e) {
this.setData({
is_clock: true, //长按时应设置为true，为可发送状态
startPoint: e.touches[0], //记录触摸点的坐标信息
})
//设置录音参数
const options = {
duration: 600000,
sampleRate: 16000,
numberOfChannels: 1,
encodeBitRate: 48000,
format: ‘mp3’
}
//开始录音
recorderManager.start(options);
wx.showLoading({
icon: “none”,
title: ‘正在录音’,
})
},
handleRecordStop: function(e) {
console.log(e)
wx.hideLoading()
recorderManager.stop() //结束录音
//此时先判断是否需要发送录音
if (this.data.is_clock == true) {
var that = this
//对停止录音进行监控
recorderManager.onStop((res) => {
//对录音时长进行判断，少于2s的不进行发送，并做出提示
console.log(res)
console.log(_xx_util2.default.getUrl(“upload”, “longbing_card”))
if (res.duration < 2000) {
wx.showToast({
title: ‘录音时间太短，请长按录音’,
icon: ‘none’,
duration: 1000
})
} else {
//进行语音发送
const {
tempFilePath
} = res;
wx.showLoading({
title: ‘语音检索中’,
})
//上传录制的音频
wx.uploadFile({
url: _xx_util2.default.getUrl(“upload”, “longbing_card”),
filePath: tempFilePath,
name: ‘upfile’,
success: function(event) {
console.log(event)
var datas = JSON.parse(event.data);
console.log(datas)
if (datas.errno == 0) {
wx.hideLoading()
if (datas.data) {
console.log(that.data.audiolist)
that.setData({
audiolist: datas.data.path,
audioPath: datas.data.img,
time: res.duration
})
} else {
wx.showToast({
title: ‘上传格式错误’,
icon: ‘none’,
duration: 2000
})
}
} else {
wx.showToast({
title: datas.msg,
icon: ‘none’,
duration: 2000
})
}
}
})
}
})
}
},
handleTouchMove: function(e) {
//计算距离，当滑动的垂直距离大于25时，则取消发送语音
if (Math.abs(e.touches[e.touches.length – 1].clientY – this.data.startPoint.clientY) > 25) {
this.setData({
is_clock: false //设置为不发送语音
})
}
},
录音播放js：
var innerAudioContext = wx.createInnerAudioContext()//很重要，写在page外面，作为全局变量
data: {
isPlayAudio: false,
audioSeek: 0,
audioDuration: 0,
showTime1: ‘00:00’,
showTime2: ‘00:00’,
audioTime: 0
},
onshow: function() { console.log("onshow")this.Initialization();this.loadaudio();
},//初始化播放器，获取duration
Initialization() {console.log("初始化播放器")var t = this;if (this.properties.audiolist.length != 0) {//设置srcinnerAudioContext.src = this.properties.audiolist;console.log(innerAudioContext.src)//运行一次innerAudioContext.play();innerAudioContext.pause();innerAudioContext.onCanplay(() => {//初始化durationinnerAudioContext.durationsetTimeout(function() {//延时获取音频真正的durationvar duration = innerAudioContext.duration;var min = parseInt(duration / 60);var sec = parseInt(duration % 60);if (min.toString().length == 1) {min = `0${min}`;}if (sec.toString().length == 1) {sec = `0${sec}`;}t.setData({audioDuration: innerAudioContext.duration,showTime2: `${min}:${sec}`});}, 1000)})}
},
//拖动进度条事件
sliderChange(e) {var that = this;innerAudioContext.src = this.properties.audiolist;//获取进度条百分比var value = e.detail.value;this.setData({audioTime: value});var duration = this.data.audioDuration;//根据进度条百分比及歌曲总时间，计算拖动位置的时间value = parseInt(value * duration / 100);//更改状态this.setData({audioSeek: value,isPlayAudio: true});//调用seek方法跳转歌曲时间innerAudioContext.seek(value);//播放歌曲innerAudioContext.play();
},
//播放、暂停按钮
playAudio() {console.log("播放")//获取播放状态和当前播放时间var isPlayAudio = this.data.isPlayAudio;var seek = this.data.audioSeek;innerAudioContext.pause();//更改播放状态this.setData({isPlayAudio: !isPlayAudio})if (isPlayAudio) {//如果在播放则记录播放的时间seek，暂停this.setData({audioSeek: innerAudioContext.currentTime});} else {//如果在暂停，获取播放时间并继续播放innerAudioContext.src = this.properties.audiolist;console.log(innerAudioContext.src)if (innerAudioContext.duration != 0) {this.setData({audioDuration: innerAudioContext.duration});}//跳转到指定时间播放innerAudioContext.seek(seek);innerAudioContext.play();}
},
loadaudio() {var that = this;//设置一个计步器this.data.durationIntval = setInterval(function() {//当歌曲在播放时执行if (that.data.isPlayAudio == true) {//获取歌曲的播放时间，进度百分比var seek = that.data.audioSeek;var duration = innerAudioContext.duration;var time = that.data.audioTime;console.log(seek, duration, time)time = parseInt(100 * seek / duration);console.log(time)//当歌曲在播放时，每隔一秒歌曲播放时间+1，并计算分钟数与秒数var min = parseInt((seek) / 60);var sec = parseInt((seek) % 60);//填充字符串，使3:1这种呈现出 03：01 的样式if (min.toString().length == 1) {min = `0${min}`;}if (sec.toString().length == 1) {sec = `0${sec}`;}var min1 = parseInt(duration / 60);var sec1 = parseInt(duration % 60);if (min1.toString().length == 1) {min1 = `0${min1}`;}if (sec1.toString().length == 1) {sec1 = `0${sec1}`;}//当进度条完成，停止播放，并重设播放时间和进度条if (time >= 100) {innerAudioContext.stop();that.setData({audioSeek: 0,audioTime: 0,audioDuration: duration,isPlayAudio: false,showTime1: `00:00`});return false;}console.log(`${min}:${sec}`, `${min1}:${sec1}`)//正常播放，更改进度信息，更改播放时间信息that.setData({audioSeek: seek + 1,audioTime: time,audioDuration: duration,showTime1: `${min}:${sec}`,showTime2: `${min1}:${sec1}`});}}, 1000);
},
onUnload: function() {//卸载页面，清除计步器clearInterval(this.data.durationIntval);
}
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