"window":{ 
   "enablePullDownRefresh":true 
} 

{ 
  "enablePullDownRefresh": true 
} 

// 下拉刷新 
onPullDownRefresh:function(){ 
 // 動(dòng)態(tài)設(shè)置導(dǎo)航條標(biāo)題 
 wx.setNavigationBarTitle({ 
  title: '' 
 }); 
 wx.showNavigationBarLoading(); //在標(biāo)題欄中顯示加載圖標(biāo) 
 
 let url = app.globalConfig.pre_api + "/api/user/getUserInfo.php";//根據(jù)實(shí)際情況定義請(qǐng)求的路徑 
 let user_id = app.globalData.user_id;              //請(qǐng)求的參數(shù) 
 let flag = true; 
 let that = this; 
 // 驗(yàn)證參數(shù)合法性 
 flag = app.isParameterdValidate(user_id,'該用戶(hù)不存在'); 
 if(flag == false){ return; } 
 // 發(fā)送請(qǐng)求 
 wx.request({ 
  url: url, 
  data: { 
   user_id: user_id, 
  }, 
  method: 'POST', 

 //請(qǐng)求成功的函數(shù)處理 
 success: function (res) { 
  app.globalData.balance = res.data.data.balance;  //對(duì)數(shù)據(jù)進(jìn)行更新 
  that.setData({ 
   balance: app.globalData.balance, 
  }); 
 }, 
 fail: function (res) {               //請(qǐng)求失敗的處理 
  console.log(res.data.msg); 
 }, 
 complete: function () { 
  wx.hideNavigationBarLoading();          //完成停止加載 
  // 動(dòng)態(tài)設(shè)置導(dǎo)航條標(biāo)題 
  wx.setNavigationBarTitle({ 
   title: '我的' 
  }); 
  wx.stopPullDownRefresh();            //停止下拉刷新 
 } 
})