添加了首页楼层高度计算的保护（data判断）和学生认证字体颜色问题。review by caomei。

@@ -442,8 +442,8 @@ function parseReportData(list) {
                    floorItem.template_name == 'custom_brands' ||
                    floorItem.template_name == 'kids_brands')
         {
-            let brandList = floorItem.data.list ? floorItem.data.list : [];
-            let moreItem = floorItem.data.image;
+            let brandList = floorItem.data && floorItem.data.list ? floorItem.data.list : [];
+            let moreItem = floorItem.data && floorItem.data.image;
             for (var j = 0; j < brandList.length; j++) {
                 let brandItem = brandList[j];
                 let brandParam = {

@@ -106,6 +106,7 @@ let styles = StyleSheet.create({
         flex: 1,
         fontSize: 14,
         padding: 0,
+        color:'#000000',
     },
     arrow: {
         width: 8,