微信小程序播放背景音乐的实例代码

<image src="{{checked?'../img/stop.png':'../img/play.png'}}" class="music {{!checked && 'circle'}}" catchtap="checkMusic"></image>
<view catchtap="toNext" class="btn"> 去下一个页面</view>

page {
  background-color: aliceblue;
}
.music {
  width: 86rpx;
  height: 86rpx;
  position: absolute;
  top: 108rpx;
  right: 10rpx;
  z-index: 99;
}
.circle {
  animation: cirlce 4s linear infinite;
}
@keyframes cirlce {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(359deg);
  }
}
.btn {
  margin: 550rpx auto 0;
  width: 625rpx;
  height: 80rpx;
  background: linear-gradient(90deg, #dd8449 0%, #e28e74 52%, #dbb290 100%);
  border-radius: 6rpx;
  font-size: 30rpx;
  color: #fff;
  line-height: 80rpx;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.btn:after {
  content: "";
  background: #999;
  position: absolute;
  width: 750rpx;
  height: 750rpx;
  left: calc(50% - 375rpx);
  top: calc(50% - 375rpx);
  opacity: 0;
  margin: auto;
  border-radius: 50%;
  transform: scale(1);
  transition: all 0.4s ease-in-out;
}

// pages/effects/audioCust/index.js
Page({

  data: {
    checked: false,
  },

  onShow: function () {
    this.player(wx.getBackgroundAudioManager())
  },
  checkMusic() {
    console.log(11)
    this.setData({
      checked: !this.data.checked
    })
    if (this.data.checked) {
      wx.getBackgroundAudioManager().pause();
    } else {
      this.player(wx.getBackgroundAudioManager())
    }
  },
  player(e) {
    e.title = '苏苏的音乐'
    e.src = "http://music.163.com/song/media/outer/url?id=36587407.mp3"
    //音乐播放结束后继续播放此音乐，循环不停的播放
    e.onEnded(() => {
      this.player(wx.getBackgroundAudioManager())
    })
  },

  // 页面卸载时候暂停播放（不加页面将一直播放）
  onUnload: function () {
    wx.getBackgroundAudioManager().stop();
  },
  // 小程序隐藏时候暂停播放（不加页面将一直播放）
  onHide() {
    wx.getBackgroundAudioManager().stop();
  },
  toNext() {
    wx.navigateTo({
      url: '/pages/jsCase/draw/index',
    })
  }
})