App 2.12.1: no scroll bars; energy since start

The pages' scroll bars never faded on the car: a ScrollView shows its
bar on every layout, and the live values lay the page out every two
seconds. StableScrollView, the root of every page, now has none.

A new "Energy since start" tile, left of "Usage since start", shows the
net kWh taken from the pack since the trip began, recuperation counted
back.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QLJfZQZeAKAwSqViTmLzki

app/src/main/java/com/evsuite/abrp/MainActivity.java

@@ -92,7 +92,8 @@ public class MainActivity extends AppCompatActivity {
             vehCharging, vehHvac,
             vehTireFl, vehTireFr, vehTireRl, vehTireRr,
             vehRangeTrip, vehRangeTripNote, vehRangeAverage, vehRangeAverageNote,
-            vehUsageTrip, vehUsageTripNote, vehUsageAverage, vehUsageAverageNote;
+            vehUsageTrip, vehUsageTripNote, vehUsageAverage, vehUsageAverageNote,
+            vehEnergyTrip, vehEnergyTripNote;
 
     /** Usable pack capacity for the range estimates; the car does not publish it. */
     static final String USABLE_KWH_KEY = "usable_kwh";
@@ -1187,6 +1188,8 @@ public class MainActivity extends AppCompatActivity {
         vehUsageTripNote    = vehiclePane.findViewById(R.id.vehicle_usage_trip_note);
         vehUsageAverage     = vehiclePane.findViewById(R.id.vehicle_usage_average);
         vehUsageAverageNote = vehiclePane.findViewById(R.id.vehicle_usage_average_note);
+        vehEnergyTrip       = vehiclePane.findViewById(R.id.vehicle_energy_trip);
+        vehEnergyTripNote   = vehiclePane.findViewById(R.id.vehicle_energy_trip_note);
     }
 
     private double usableKwh() {
@@ -1204,6 +1207,9 @@ public class MainActivity extends AppCompatActivity {
         estimator.add(monotonicMs, s.getBatteryPowerKw(), s.getSpeedKmh());
         Double remaining = RangeEstimator.remainingKwh(s.getSocPercent(), usableKwh());
         RangeEstimator.Estimate trip = estimator.sinceStart(remaining);
+        Double energy = estimator.energySinceStart();
+        vehEnergyTrip.setText(energy == null ? "—" : getString(R.string.energy_kwh, energy));
+        vehEnergyTripNote.setText(energy == null ? R.string.energy_trip_waiting : R.string.energy_trip_note);
         showEstimate(vehRangeTrip, vehRangeTripNote, vehUsageTrip, vehUsageTripNote, trip,
                 trip == null ? "" : getString(R.string.usage_over_distance, trip.distanceKm),
                 R.string.range_trip_waiting);

app/src/main/java/com/evsuite/abrp/RangeEstimator.java

@@ -110,6 +110,11 @@ final class RangeEstimator {
         tripLast = s;
     }
 
+    /** Net energy taken from the pack since start, in kWh; null before the trip's first sample. */
+    synchronized Double energySinceStart() {
+        return tripLast == null ? null : tripEnergyKwh;
+    }
+
     /** Range at the consumption since start; null until the trip has some distance behind it. */
     synchronized Estimate sinceStart(Double remainingKwh) {
         if (remainingKwh == null || tripDistanceKm < MIN_DISTANCE_KM) return null;

app/src/main/java/com/evsuite/abrp/StableScrollView.java

@@ -16,18 +16,28 @@ import android.widget.ScrollView;
  * Here only scrolling that is not part of a layout counts as the driver's position, and every
  * layout restores it. ScrollView.scrollTo clamps against the real content height, so a
  * position that no longer exists still ends at the bottom rather than past it.
+ *
+ * No scroll bar: a ScrollView shows its bar on every layout, and the live values lay the page
+ * out every two seconds, so on the car it never faded. The pages scroll by touch.
  */
 public class StableScrollView extends ScrollView {
 
     private int wantedScrollY;
     private boolean inLayout;
 
-    public StableScrollView(Context context) { super(context); }
+    public StableScrollView(Context context) {
+        super(context);
+        setVerticalScrollBarEnabled(false);
+    }
 
-    public StableScrollView(Context context, AttributeSet attrs) { super(context, attrs); }
+    public StableScrollView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        setVerticalScrollBarEnabled(false);
+    }
 
     public StableScrollView(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
+        setVerticalScrollBarEnabled(false);
     }
 
     @Override