- change visceral fat from percent to an index value.

- evaluate visceral fat
- revert cropping time by Exingtech Y1 and fix byte conversion bug

android_app/app/src/main/java/com/health/openscale/core/bluetooth/BluetoothExingtechY1.java

@@ -86,7 +86,7 @@ public class BluetoothExingtechY1 extends BluetoothCommunication {
 
         // The first notification only includes weight and all other fields are
         // either 0x00 (user info) or 0xff (fat, water, etc.)
-        if (data != null && data.length == 20 && data[6] != 0xff) {
+        if (data != null && data.length == 20 && data[6] != (byte)0xff) {
             parseBytes(data);
         }
     }
@@ -101,7 +101,7 @@ public class BluetoothExingtechY1 extends BluetoothCommunication {
         float water = Converters.fromUnsignedInt16Be(weightBytes, 8) / 10.0f; // %
         float bone = Converters.fromUnsignedInt16Be(weightBytes, 10) / 10.0f; // kg
         float muscle = Converters.fromUnsignedInt16Be(weightBytes, 12) / 10.0f; // %
-        float visc_fat = weightBytes[14] & 0xFF; // %
+        float visc_fat = weightBytes[14] & 0xFF; // index
         float calorie = Converters.fromUnsignedInt16Be(weightBytes, 15);
         float bmi = Converters.fromUnsignedInt16Be(weightBytes, 17) / 10.0f;
 
@@ -115,11 +115,7 @@ public class BluetoothExingtechY1 extends BluetoothCommunication {
         scaleBtData.setWater(water);
         scaleBtData.setBone(bone);
         scaleBtData.setVisceralFat(visc_fat);
-
+        scaleBtData.setDateTime(new Date());
-        Calendar dateTime = Calendar.getInstance();
-        dateTime.set(Calendar.MILLISECOND, 0);
-        dateTime.set(Calendar.SECOND, 0);
-        scaleBtData.setDateTime(dateTime.getTime());
 
         addScaleData(scaleBtData);
     }

android_app/app/src/main/java/com/health/openscale/core/evaluation/EvaluationSheet.java

@@ -47,6 +47,8 @@ public class EvaluationSheet {
     private List<sheetEntry> whrEvaluateSheet_Man;
     private List<sheetEntry> whrEvaluateSheet_Woman;
 
+    private List<sheetEntry> visceralFatEvaluateSheet;
+
     private class sheetEntry {
         public sheetEntry(int lowAge, int maxAge, float lowLimit, float highLimit)
         {
@@ -87,6 +89,8 @@ public class EvaluationSheet {
         whrEvaluateSheet_Man = new ArrayList<>();
         whrEvaluateSheet_Woman = new ArrayList<>();
 
+        visceralFatEvaluateSheet = new ArrayList<>();
+
         initEvaluationSheets();
     }
 
@@ -163,6 +167,8 @@ public class EvaluationSheet {
 
         whrEvaluateSheet_Man.add(new sheetEntry(18, 90, 0.8f, 0.9f));
         whrEvaluateSheet_Woman.add(new sheetEntry(18, 90, 0.7f, 0.8f));
+
+        visceralFatEvaluateSheet.add(new sheetEntry(18, 90, -1, 12));
     }
 
 
@@ -267,6 +273,10 @@ public class EvaluationSheet {
         return evaluateSheet(whr, bodyEvaluateSheet);
     }
 
+    public EvaluationResult evaluateVisceralFat(float visceralFat) {
+        return evaluateSheet(visceralFat, visceralFatEvaluateSheet);
+    }
+
     private EvaluationResult evaluateSheet(float value, List<sheetEntry> sheet) {
         for (int i=0; i < sheet.size(); i++) {
             sheetEntry curEntry = sheet.get(i);

android_app/app/src/main/java/com/health/openscale/gui/views/VisceralFatMeasurementView.java

@@ -36,11 +36,6 @@ public class VisceralFatMeasurementView extends FloatMeasurementView {
         return KEY;
     }
 
-    @Override
-    protected boolean supportsPercentageToAbsoluteWeightConversion() {
-        return true;
-    }
-
     @Override
     protected float getMeasurementValue(ScaleMeasurement measurement) {
         return measurement.getVisceralFat();
@@ -53,16 +48,12 @@ public class VisceralFatMeasurementView extends FloatMeasurementView {
 
     @Override
     public String getUnit() {
-        if (shouldConvertPercentageToAbsoluteWeight()) {
+        return "";
-            return getScaleUser().getScaleUnit().toString();
-        }
-
-        return "%";
     }
 
     @Override
     protected float getMaxValue() {
-        return maybeConvertPercentageToAbsoluteWeight(80);
+        return 100;
     }
 
     @Override
@@ -72,6 +63,6 @@ public class VisceralFatMeasurementView extends FloatMeasurementView {
 
     @Override
     protected EvaluationResult evaluateSheet(EvaluationSheet evalSheet, float value) {
-        return null;
+        return evalSheet.evaluateVisceralFat(value);
     }
 }