微信小程序仿微信语音

水深无声 2022-05-21 08:05 367阅读 0赞

搞了这么长时间，第一次写文章。给大家分享个技术难度不高的，主要展示录音功能。

先看一下效果![70][]![70 1][]

![70 2][]

就是这样，点击底部按钮会产生变化，根据bind:touchstart在触摸时触发开始录音事件,根据bind:touchend会在你结束触摸的时候调用录音结束事件，产生一个临时url。并且根据触摸的时间可以将播放条长度动态调整，录音时间长它的长度就长一点，短了它的宽度就会短一点。下面贴上代码。

// pages/Record/Record.js
    Page({
    
      /**
       * 页面的初始数据
       */
      data: {
        luStatu:false,//di'bu
        list:[],
        width:0
      },
      
      // 触摸开始
      touchStart:function(e){
        // console.log('touchStart', e);
        var start=e.timeStamp;
        var seconds = (start % (1000 * 60)) / 1000;
        this.setData({
          start: seconds,
          luStatu:true,
        })
        this.recorderManager.start({
          format: 'mp3'
        });
      },
    
      // 触摸结束
      touchEnd:function (e) {
        // console.log('touchEnd', e);
        var start = this.data.start;
        var end = e.timeStamp;
        var seconds = (end % (1000 * 60)) / 1000;
        var shijian = seconds - start;
        var width = shijian*4;
        this.setData({
          end: seconds,
          shijian: shijian,
          luStatu: false,
          width: width
        })
        this.recorderManager.stop();
        console.log('按了' + shijian+'秒');
        console.log('width是',width);
      },
      // 实时监测变化调用这些方法
      onShow:function(e){
       var that=this;
      //  初始化录音对象
        this.recorderManager = wx.getRecorderManager();
        this.recorderManager.onError(function () {
          that.tip("录音失败！")
        });
    
        // 录音结束
        this.recorderManager.onStop(function (res) {
          var list=that.data.list;
          var width = that.data.width;
          var src = res.tempFilePath;
          console.log('list的1是',list)
         // console.log(src)
          var aa={
            src: src,
            width: width,
            play:false
          }
          list.push(aa);
          console.log('list的2是', list)
          that.setData({
            list: list
          })
          
          // that.tip("录音完成！")
          //console.log(list)
        });
        
        this.innerAudioContext = wx.createInnerAudioContext();
        this.innerAudioContext.onError((res) => {
          that.tip("播放录音失败！")
        })
      },
      tip: function (msg) {
        wx.showModal({
          title: '提示',
          content: msg,
          showCancel: false
        })
      },
    
      // 播放录音
      audioPlay: function (e) {
        var that = this;
        var src = e.currentTarget.dataset.src;
        if (src == '') {
          this.tip("失效")
          return;
        }
        this.innerAudioContext.src = src;
        this.innerAudioContext.play();
      },
    })

下面是wxml代码

<view class='body'>
       <view class='center'>
       <block wx:for="{
       {list}}">
          <view   style='width:{
       {item.width+200}}rpx' bindtap="audioPlay" data-src="{
       {item.src}}" class='myLuYin'>录音{
       {index+1}}</view>
       </block>
       </view>
    </view>
    
    
    <button class="{
       {luStatu?'btTouch':'bt'}}"  bind:touchstart="touchStart"bind:touchend="touchEnd"  type='primary'>    <text wx:if="{
       {luStatu}}">松开结束</text> <text wx:else>按住说话 </text>     </button>

以下是css代码

.body{
      position: absolute;
      padding-bottom: 100rpx;
    }
    .bt{
      width: 100%;
      position: fixed;
      bottom: 0;
      left: 0;
      z-index: 69;
      height: 100rpx;
    }
    
    .btTouch{
      background: #e2e2e2 !important;
      color: #333333 !important;
       width: 100%;
      position: fixed;
      bottom: 0;
      left: 0;
      z-index: 69;
      height: 100rpx;
    }
    .myLuYin{
     
      height: 80rpx;
      background: greenyellow;
      border-radius:6rpx;
      margin: 15rpx 0; 
      text-align: center;
      line-height: 80rpx;
      font-size: 32rpx;
      color: #fff;
    }
    
    .center{
      width: 90%;
      margin: 0 auto;
    }

[70]: https://img-blog.csdn.net/20180703151033326?watermark/2/text/aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM0NjIyODEx/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70
[70 1]: /images/20220521/f900f3833bcd4dbcab35de9745ea2bea.png
[70 2]: /images/20220521/86d363eaba434289805475db56221238.png