微信小程序page的生命周期和音频播放及监听的介绍

 /**   * 监听页面加载，   *  页面加载中   */    onLoad:function(){     var _this = this      console.log('index---------onload()')      /**       * 监听音乐播放       */      wx.onBackgroundAudioPlay(function() {       console.log('onBackgroundAudioPlay')      }),         /**       * 监听音乐暂停       */      wx.onBackgroundAudioPause(function() {       console.log('onBackgroundAudioPause')      }),         /**       * 监听音乐停止       */      wx.onBackgroundAudioStop(function() {       console.log('onBackgroundAudioStop')       util.playAudio()        })   },    /**    * 监听页面显示，    *  当从当前页面调转到另一个页面    *  另一个页面销毁时会再次执行    */   onShow: function() {    console.log('index---------onShow()')   },   /**    * 监听页面渲染完成    *  完成之后不会在执行    */   onReady: function() {    console.log('index---------onReaday()');   },   /**    * 监听页面隐藏    *  当前页面调到另一个页面时会执行    */   onHide: function() {    console.log('index---------onHide()')   },   /**    * 当页面销毁时调用    */   onUnload: function() {    console.log('index---------onUnload')   }

wx.playBackgroundAudio（）

function playAudio(){    wx.playBackgroundAudio({    dataUrl: 'http://m2.music.126.net/oO27f-6XZ2_jMV1gA8wzlA==/1319413953349380.mp3',    title:'Blue Night',    coverImgUrl:'http://pic.58pic.com/58pic/15/15/32/43x58PICgE2_1024.jpg',    success: function(res){     // success     console.log("ok")    },    fail: function(res) {     // fail     console.log("fail")    },    complete: function(res) {     // complete     console.log("ok")    }   })}