onShow : function(){
 var that = this;
 //監(jiān)測藍牙狀態(tài)的改變
 wx.onBluetoothAdapterStateChange(function (res) {
  if (res.available) {//如果用戶打開藍牙，開始搜索IBeacon
  searchBeacon();
  }
 })
 
 //搜索beacons
 searchBeacon();
 //搜索函數(shù)
 function searchBeacon() {
  //檢測藍牙狀態(tài)
  wx.openBluetoothAdapter({
  success: function (res) {//藍牙狀態(tài)：打開
   wx.startBeaconDiscovery({//開始搜索附近的iBeacon設(shè)備
   uuids: ['FDA50693-A4E2-4FB1-AFCF-C6EB07647825'],//參數(shù)uuid
   success: function (res) {
    wx.onBeaconUpdate(function (res) {//監(jiān)聽 iBeacon 設(shè)備的更新事件 
    //封裝請求數(shù)據(jù) 
    var beacons = res.beacons;
    var reqContent = {};
    var bleArray = [];
    for (var i = 0; i < beacons.length; i++) {
     var bleObj = {};
     bleObj.distance = beacons[i].accuracy;
     bleObj.rssi = beacons[i].rssi;
     bleObj.mac = beacons[i].major + ":" + beacons[i].minor;
     bleArray.push(bleObj);
    }
    reqContent.ble = bleArray;
    //請求后臺向redis插入數(shù)據(jù)
    redisSave(reqContent);
    });
   },
   fail: function (res) {
    //先關(guān)閉搜索再重新開啟搜索,這一步操作是防止重復(fù)wx.startBeaconDiscovery導(dǎo)致失敗
    stopSearchBeacom();
   }
   })
  },
  fail: function (res) {//藍牙狀態(tài)：關(guān)閉
   wx.showToast({ title: "請打開藍牙", icon: "none", duration: 2000 })
  }
  })
 }
 function redisSave(reqContent) {
  wx.request({
  url: "https://map.intmote.com/LocateServer/location.action",
  data: JSON.stringify(reqContent),
  method: 'POST',
  header: {
   'Content-type': 'application/json'
  },
  success: function (res) {
   // wx.showToast({ title: "seccess" })
  },
  fail: function (res) {
   // wx.showToast({ title: "1" })
  }
  });
 }
 //關(guān)閉成功后開啟搜索
 function stopSearchBeacom() {
  wx.stopBeaconDiscovery({
  success: function () {
   searchBeacon();
  }
  })
 } 
 },