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微信小程序音频背景播放

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由于微信小程序官方将音频的样式固定死了,往往再工作中和UI设计师设计出来的样式不符,故一般都采用背景音频播放来实现自定义的UI样式的音频播放,即使用官网API提供的BackgroundAudioManager进行操作 也可以去官网https://developers.weixin.qq.com/miniprogram/dev/api/media/background-audio/BackgroundAudioManager.play.html查看详情第一步,在对应的wxml页面添加如下代码,eg,放在index.wxml中<view class=’audioMeaage’>        <view bindtap=’playAudio1′>          <image wx:if=”{{!audioImg}}” class=’playIcom’ src='{{palyIcon}}’></image>          <image wx:else class=’playIcom’ src='{{pausIcon}}’></image>        </view>        <view class=’sliderWrap’>          <view class=’audioNames’>{{audioTitle}}</view>          <view class=’progressWrap’>            <slider class=”slider2″              bindchange=”hanle_slider_change”               bindtouchstart=”handle_slider_move_start”               bindtouchend=”handle_slider_move_end”              min=”0″               block-size=”10″               max=”{{slider_max}}”               activeColor=”#ffd038″              block-color=”#ffd038″              backgroundColor=”#f2f2f2″               value=”{{slider_value}}”             />            <view class=’proTime’>{{current_process}}/{{total_process}}</view>          </view>        </view>      </view>第二步,对应的index.js,注意这里的playAudio方法是点击以后从后台获取音频的url和标题等信息的//获取应用实例const app = getApp()const AUDIOMANAGER = getApp().globalData.global_bac_audio_manager.manageconst AUDIO = getApp().globalData.global_bac_audio_managerPage({  data: {    audioImg:false,    palyIcon: “./../../images/home_img_vedio_play.png”,    pausIcon:”./../../images/home_img_vedio_play2.png”,    audioFlag: false,    is_moving_slider: false,    current_process:””,    slider_value: “”,    total_process: “”,    slider_max: “”,    audioTitle:””,  },    playAudio: function(e){    const item = e.currentTarget.dataset.url    AUDIOMANAGER.src = item.link_url    AUDIOMANAGER.title = item.tit // 音频标题    AUDIO.is_play= true    //背景音频播放进度更新事件    const that = this    that.setData({      audioFlag: true,      audioTitle: item.tit,      audioImg: true    })    AUDIOMANAGER.onTimeUpdate(() => {      if (!that.data.is_moving_slider) {        that.setData({          current_process: that.format(AUDIOMANAGER.currentTime),          slider_value: Math.floor(AUDIOMANAGER.currentTime),          total_process: that.format(AUDIOMANAGER.duration),          slider_max: Math.floor(AUDIOMANAGER.duration)        })      }      AUDIO.time = AUDIOMANAGER.currentTime    })    // 背景音频播放完毕    AUDIOMANAGER.onEnded(() => {        // 单曲循环        that.setData({          slider_value: 0,          current_process: ’00:00′,          total_process: that.format(AUDIOMANAGER.duration)        })    })  },  // 拖动进度条,到指定位置  hanle_slider_change(e) {    const position = e.detail.value    this.seekCurrentAudio(position)  },  // 拖动进度条控件  seekCurrentAudio(position) {    // 更新进度条    let that = this    wx.seekBackgroundAudio({      position: Math.floor(position),      success: function () {        AUDIOMANAGER.currentTime = position        that.setData({          current_process: that.format(position),          slider_value: Math.floor(position)        })      }    })  },  // 进度条滑动  handle_slider_move_start() {    this.setData({      is_moving_slider: true    });  },  handle_slider_move_end() {    this.setData({      is_moving_slider: false    });  },  // 时间格式化  format: function(t) {    let time = Math.floor(t / 60) >= 10 ? Math.floor(t / 60) : ‘0’ + Math.floor(t / 60)    t = time + ‘:’ + ((t % 60) / 100).toFixed(2).slice(-2)    return t  },    // 播放音频  playAudio1: function(){    console.log(9799875)    console.log(AUDIO.is_play)    if(AUDIO.is_play) {      AUDIOMANAGER.pause()      AUDIO.is_play = false      this.setData({        audioImg: false      })    } else {      AUDIOMANAGER.play()      AUDIO.is_play = true      this.setData({        audioImg: true      })    }  },})第三步,由于index.js里引入了app.js的方法或者属性了,其实就是将AUDIO的方法提出来了,放在了一个公用的里面,自己单独建立公用文件或者直接写在app.js里都是可以的,这里将其放在app.js中,可以对应这修改globalData里的属性globalData: {    userInfo: null,    global_bac_audio_manager: {      manage: wx.getBackgroundAudioManager(),      is_play: false,      id: ”,      play_time: ”,      article_id: ”,    }  } index.wxss.audioMeaage{  height: 124rpx;  display: flex;  align-items: center;}.proTime{  font-size: 20rpx;  color: #888888;}.progressWrap{  display: flex;  align-items: center;}.playIcom{  width: 84rpx;  height: 84rpx;}.slider{  /* width: 502rpx; */  }.slider1{  width: 466rpx;  margin:0 29rpx 0 8rpx;}.slider2{  width: 466rpx;  margin:0 29rpx 0 19rpx;} 微信小程序

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