feature: 首页列表有无数据判断是否搜索蓝牙

pages/index/index.js

@@ -91,7 +91,7 @@ Page({
     var hasWifi = false;
     var bleDevice;
     let that = this
-    this.data.deviceList.forEach(device => {
+    that.data.deviceList.forEach(device => {
       if (device.connectType == 1) {
         hasBle = true
         if (device.state == "online") {
@@ -150,13 +150,13 @@ Page({
 
   async compareList() {
     var that = this;
-    if (BtHelper.getInstance().getCallBackConnect() == null) {
-      var compareList = BtHelper.getInstance().getCompareList();
-      if (compareList.length > 0) {
-        ///对比在线的蓝牙设备
-        var isChanged = false;
-        var tempList = that.data.deviceList;
-        if (tempList.length > 0) {
+    var tempList = that.data.deviceList;
+    if (tempList.length > 0) {
+      if (BtHelper.getInstance().getCallBackConnect() == null) {
+        var compareList = BtHelper.getInstance().getCompareList();
+        if (compareList.length > 0) {
+          ///对比在线的蓝牙设备
+          var isChanged = false;
           for (var i = 0; i < tempList.length; i++) {
             var tempItem = tempList[i];
             if (tempItem.connectType != 3) {
@@ -205,9 +205,8 @@ Page({
             }
           }
         }
+        BtHelper.getInstance().startScan(null, null, null);
       }
-      await BtHelper.getInstance().stopSearch();
-      BtHelper.getInstance().startScan(null, null, null);
     }
   },