Bug PAP-877 fixed, blood tracker exception.

lib/core/viewModels/medical/blood_sugar_view_model.dart

@@ -39,6 +39,9 @@ class BloodSugarViewMode extends BaseViewModel {
           element.dailyAverageResult.toDouble(),
         ));
       });
+      if (bloodWeekTimeSeriesData.isEmpty) {
+        bloodWeekTimeSeriesData.add(TimeSeriesSales2(DateTime.now(), 0));
+      }
 
       for (int index = 0;
           index < bloodSugarService.monthDiabtectResultAverageList.length;

lib/pages/medical/my_trackers/blood_suger/blood_sugar_weekly_page.dart

@@ -31,42 +31,47 @@ class BloodSugarWeeklyPage extends StatelessWidget {
   Widget build(BuildContext context) {
     ProjectViewModel projectViewModel = Provider.of(context);
     return AppScaffold(
-      body:timeSeriesData.isEmpty?Container(child: Center(child: Texts(TranslationBase.of(context).noDataAvailable),),): ListView(
-        children: [
-          Container(
-            margin: EdgeInsets.only(top: 12, left: 8, right: 8),
-            color: Colors.white,
-            child: LineChartCurved(
-              title: 'Sugar',
-              timeSeries: timeSeriesData,
-              indexes: timeSeriesData.length ~/ 5.5,
-            ),
-          ),
-          SizedBox(
-            height: 12,
-          ),
-          Padding(
-            padding: const EdgeInsets.all(8.0),
-            child: Texts(TranslationBase.of(context).details),
-          ),
-          Container(
-            padding: EdgeInsets.all(10),
-            color: Colors.transparent,
-            child: Column(
-              crossAxisAlignment: CrossAxisAlignment.start,
-              children: <Widget>[
-                Table(
-                  border: TableBorder.symmetric(
-                    inside: BorderSide(width: 2.0, color: Colors.grey[300]),
+      body: timeSeriesData.isEmpty
+          ? Container(
+              child: Center(
+                child: Texts(TranslationBase.of(context).noDataAvailable),
+              ),
+            )
+          : ListView(
+              children: [
+                Container(
+                  margin: EdgeInsets.only(top: 12, left: 8, right: 8),
+                  color: Colors.white,
+                  child: LineChartCurved(
+                    title: 'Sugar',
+                    timeSeries: timeSeriesData,
+                    indexes: timeSeriesData.length ~/ 5.5,
                   ),
-                  children:
-                      fullData(context, projectViewModel, bloodSugarViewMode),
                 ),
+                SizedBox(
+                  height: 12,
+                ),
+                Padding(
+                  padding: const EdgeInsets.all(8.0),
+                  child: Texts(TranslationBase.of(context).details),
+                ),
+                Container(
+                  padding: EdgeInsets.all(10),
+                  color: Colors.transparent,
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: <Widget>[
+                      Table(
+                        border: TableBorder.symmetric(
+                          inside: BorderSide(width: 2.0, color: Colors.grey[300]),
+                        ),
+                        children: fullData(context, projectViewModel, bloodSugarViewMode),
+                      ),
+                    ],
+                  ),
+                )
               ],
             ),
-          )
-        ],
-      ),
     );
   }
 

lib/pages/medical/my_trackers/widget/LineChartCurved.dart

@@ -184,7 +184,7 @@ class LineChartCurved extends StatelessWidget {
   }
 
   double getMinY() {
-    double min = timeSeries[0].sales;
+    double min = timeSeries.isEmpty ? 0 : timeSeries.first.sales;
     timeSeries.forEach((element) {
       double resultValueDouble = element.sales;
       if (resultValueDouble < min) min = resultValueDouble;