Add information about the number of cars on Link Light Rail trains

onebusaway-android/src/main/java/org/onebusaway/android/io/elements/ObaArrivalInfo.java

@@ -347,4 +347,19 @@ public Occupancy getHistoricalOccupancy() {
     public Occupancy getOccupancyStatus() {
         return Occupancy.fromString(occupancyStatus);
     }
+
+    /**
+     * @return a String indicating the number of cars, if this is a light rail arrival.
+     *         Otherwise returns null.
+     */
+    public String getNumCars() {
+        assert this.getVehicleId() != null;
+        String[] splitByBracket = this.getVehicleId().split("\\[");
+        if (splitByBracket.length == 2) {
+            int numCars = splitByBracket[1].split("-").length;
+            return numCars + " " + "car";
+        } else {
+            return null;
+        }
+    }
 }

onebusaway-android/src/main/java/org/onebusaway/android/ui/ArrivalsListAdapterStyleA.java

@@ -73,6 +73,7 @@ protected void initView(View view, ArrivalInfo stopInfo) {
         TextView destination = (TextView) view.findViewById(R.id.destination);
         TextView time = (TextView) view.findViewById(R.id.time);
         TextView status = (TextView) view.findViewById(R.id.status);
+        TextView carCount = (TextView) view.findViewById(R.id.car_count);
         TextView etaView = (TextView) view.findViewById(R.id.eta);
         TextView minView = (TextView) view.findViewById(R.id.eta_min);
         ViewGroup realtimeView = (ViewGroup) view.findViewById(R.id.eta_realtime_indicator);
@@ -103,6 +104,17 @@ protected void initView(View view, ArrivalInfo stopInfo) {
         destination.setText(UIUtils.formatDisplayText(arrivalInfo.getHeadsign()));
         status.setText(stopInfo.getStatusText());
 
+
+        String numCars = stopInfo.getInfo().getNumCars();
+        if (numCars != null) {
+            carCount.setBackgroundResource(R.drawable.round_corners_style_b_status);
+            carCount.setText(stopInfo.getInfo().getNumCars());
+            carCount.setVisibility(View.VISIBLE);
+        } else {
+            carCount.setVisibility(View.GONE);
+        }
+
+
         long eta = stopInfo.getEta();
         if (eta == 0) {
             etaView.setText(R.string.stop_info_eta_now);
@@ -130,6 +142,8 @@ protected void initView(View view, ArrivalInfo stopInfo) {
         minView.setTextColor(color);
         d.setColor(color);
 
+        ((GradientDrawable) carCount.getBackground()).setColor(color);
+
         // Set padding on status view
         int pSides = UIUtils.dpToPixels(context, 5);
         int pTopBottom = UIUtils.dpToPixels(context, 2);

onebusaway-android/src/main/res/layout/arrivals_list_item.xml

@@ -97,6 +97,18 @@
                         android:layout_marginBottom="2dp"
                         app:layout_constraintTop_toBottomOf="@id/destination" />
 
+                    <include
+                        android:id="@+id/car_count"
+                        layout="@layout/arrivals_list_tv_template_style_a_status_smallest"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_marginStart="5dp"
+                        android:layout_marginLeft="5dp"
+                        app:layout_constraintTop_toTopOf="@id/status"
+                        app:layout_constraintBottom_toBottomOf="@id/status"
+                        app:layout_constraintStart_toEndOf="@+id/status"
+                        app_layout_constraintEnd_toEndOf="@+id/time"/>
+
                     <include
                         android:id="@+id/occupancy"
                         android:layout_width="wrap_content"

onebusaway-android/src/main/res/layout/arrivals_list_tv_template_style_a_status_smallest.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:minWidth="@dimen/arrival_style_b_status_min_width_small"
+        android:paddingLeft="5dp"
+        android:paddingRight="5dp"
+        android:paddingTop="2dp"
+        android:paddingBottom="2dp"
+        android:text="12 min delay"
+        android:id="@+id/status3"
+        style="@style/ArrivalsListStatusSmallStyleA"
+        android:layout_span="2"
+        android:layout_alignParentEnd="true"
+        android:background="@drawable/round_corners_style_b_status"/>

onebusaway-android/src/main/res/values/dimens.xml

@@ -62,6 +62,7 @@
 
     <!-- Arrivals Style B -->
     <dimen name="arrival_style_b_status_min_width">77dp</dimen>
+    <dimen name="arrival_style_b_status_min_width_small">55dp</dimen>
 
     <!-- Trip details - transit stop and line -->
     <dimen name="trip_details_transit_line_width">3dp</dimen>