微信小程序开发之录音机 音频播放 动画实例 (真机可用)

<!--index.wxml--> 
<scroll-view> 
 <view wx:if="{{voices}}" class="common-list" style="margin-bottom:120rpx;"> 
<block wx:for="{{voices}}"> 
   <view class="board"> 
          <view class="cell" > 
            <view class="cell-bd" data-key="{{item.filePath}}" bindtap="gotoPlay" >  
              <view class="date">存储路径:{{item.filePath}}</view> 
              <view class="date" >存储时间:{{item.createTime}}</view> 
              <view class="date">音频大小:{{item.size}}KB</view> 
            </view>  
             
          </view> 
    </view> 
</block> 
 </view> 
 </scroll-view> 
  
<view wx:if="{{isSpeaking}}" class="speak-style"> 
<image class="sound-style" src="../../images/voice_icon_speech_sound_1.png" ></image> 
<image wx:if="{{j==2}}" class="sound-style" src="../../images/voice_icon_speech_sound_2.png" ></image> 
<image wx:if="{{j==3}}" class="sound-style" src="../../images/voice_icon_speech_sound_3.png" ></image> 
<image wx:if="{{j==4}}" class="sound-style" src="../../images/voice_icon_speech_sound_4.png" ></image> 
<image wx:if="{{j==5}}"class="sound-style" src="../../images/voice_icon_speech_sound_5.png" ></image> 
 </view> 
 <view class="record-style"> 
 <button class="btn-style" bindtouchstart="touchdown" bindtouchend="touchup">按住 录音</button> 
 </view> 

 /**index.wxss**/ 
.speak-style{ 
  position: relative; 
  height: 240rpx; 
  width: 240rpx; 
  border-radius: 20rpx; 
  margin: 50% auto; 
  background: #26A5FF; 
} 
.item-style{ 
  margin-top: 30rpx; 
  margin-bottom: 30rpx; 
} 
.text-style{ 
  text-align: center; 
 
} 
.record-style{ 
  position: fixed; 
  bottom: 0; 
  left: 0; 
  height: 120rpx; 
  width: 100%; 
} 
.btn-style{ 
 margin-left: 30rpx; 
 margin-right: 30rpx; 
} 
 
.sound-style{ 
 position: absolute; 
 width: 74rpx; 
 height:150rpx; 
 margin-top: 45rpx; 
 margin-left: 83rpx; 
} 
 
 
.board { 
 overflow: hidden; 
 border-bottom: 2rpx solid #26A5FF;  
} 
/*列布局*/ 
.cell{ 
  display: flex; 
  margin: 20rpx; 
} 
.cell-hd{ 
  margin-left: 10rpx; 
  color: #885A38; 
} 
.cell .cell-bd{ 
  flex:1; 
  position: relative; 
   
} 
/**只显示一行*/ 
.date{ 
  font-size: 30rpx; 
  text-overflow: ellipsis;  
  white-space:nowrap; 
  overflow:hidden;  
} 

//index.js 
//获取应用实例 
var app = getApp() 
Page({ 
 data: { 
  j: 1,//帧动画初始图片 
  isSpeaking: false,//是否正在说话 
  voices: [],//音频数组 
 }, 
 onLoad: function () { 
 }, 
 //手指按下 
 touchdown: function () { 
  console.log("手指按下了...") 
  console.log("new date : " + new Date) 
  var _this = this; 
  speaking.call(this); 
  this.setData({ 
   isSpeaking: true 
  }) 
  //开始录音 
  wx.startRecord({ 
   success: function (res) { 
    //临时路径,下次进入小程序时无法正常使用 
    var tempFilePath = res.tempFilePath 
    console.log("tempFilePath: " + tempFilePath) 
    //持久保存 
    wx.saveFile({ 
     tempFilePath: tempFilePath, 
     success: function (res) { 
      //持久路径 
      //本地文件存储的大小限制为 100M 
      var savedFilePath = res.savedFilePath 
      console.log("savedFilePath: " + savedFilePath) 
     } 
    }) 
    wx.showToast({ 
     title: '恭喜!录音成功', 
     icon: 'success', 
     duration: 1000 
    }) 
    //获取录音音频列表 
    wx.getSavedFileList({ 
     success: function (res) { 
      var voices = []; 
      for (var i = 0; i < res.fileList.length; i++) { 
       //格式化时间 
       var createTime = new Date(res.fileList[i].createTime) 
       //将音频大小B转为KB 
       var size = (res.fileList[i].size / 1024).toFixed(2); 
       var voice = { filePath: res.fileList[i].filePath, createTime: createTime, size: size }; 
       console.log("文件路径: " + res.fileList[i].filePath) 
       console.log("文件时间: " + createTime) 
       console.log("文件大小: " + size) 
       voices = voices.concat(voice); 
      } 
      _this.setData({ 
       voices: voices 
      }) 
     } 
    }) 
   }, 
   fail: function (res) { 
    //录音失败 
    wx.showModal({ 
     title: '提示', 
     content: '录音的姿势不对!', 
     showCancel: false, 
     success: function (res) { 
      if (res.confirm) { 
       console.log('用户点击确定') 
       return 
      } 
     } 
    }) 
   } 
  }) 
 }, 
 //手指抬起 
 touchup: function () { 
  console.log("手指抬起了...") 
  this.setData({ 
   isSpeaking: false, 
  }) 
  clearInterval(this.timer) 
  wx.stopRecord() 
 }, 
 //点击播放录音 
 gotoPlay: function (e) { 
  var filePath = e.currentTarget.dataset.key; 
  //点击开始播放 
  wx.showToast({ 
   title: '开始播放', 
   icon: 'success', 
   duration: 1000 
  }) 
  wx.playVoice({ 
   filePath: filePath, 
   success: function () { 
    wx.showToast({ 
     title: '播放结束', 
     icon: 'success', 
     duration: 1000 
    }) 
   } 
  }) 
 } 
}) 
//麦克风帧动画 
function speaking() { 
 var _this = this; 
 //话筒帧动画 
 var i = 1; 
 this.timer = setInterval(function () { 
  i++; 
  i = i % 5; 
  _this.setData({ 
   j: i 
  }) 
 }, 200); 
}