Display grazing area from detail response.

app/src/main/java/com/danilafe/fencelessgrazing/ui/activities/CollarDetailActivity.kt

@@ -3,6 +3,7 @@ package com.danilafe.fencelessgrazing.ui.activities
 import android.graphics.Color
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import android.util.Log
 import android.widget.TextView
 import android.widget.Toast
 import com.android.volley.RequestQueue
@@ -12,6 +13,7 @@ import com.danilafe.fencelessgrazing.R
 import com.danilafe.fencelessgrazing.model.Polygon
 import com.danilafe.fencelessgrazing.requests.authenticated.CollarDetailRequest
 import com.danilafe.fencelessgrazing.requests.authenticated.CollarHistoryRequest
+import com.danilafe.fencelessgrazing.ui.components.GrazingPolygon
 import org.osmdroid.util.GeoPoint
 import org.osmdroid.views.MapView
 import org.osmdroid.views.overlay.Marker
@@ -81,7 +83,7 @@ class CollarDetailActivity : AppCompatActivity() {
      * to display the valid grazing area for the collar; its vertices
      * are updated whenever the [boundingBox] property is changed.
      */
-    private lateinit var mapPolygon: org.osmdroid.views.overlay.Polygon
+    private lateinit var mapPolygon: GrazingPolygon
 
     /**
      * The [Polygon] that represents the collar's valid grazing area.
@@ -133,10 +135,9 @@ class CollarDetailActivity : AppCompatActivity() {
 
         map = findViewById(R.id.detailMap)
         map.controller.setZoom(9.5)
-        mapPolygon = org.osmdroid.views.overlay.Polygon(map)
+        mapPolygon = GrazingPolygon(map)
         mapMarker = Marker(map)
         mapPolyline = Polyline(map)
-        configureMapPolygon()
     }
 
     override fun onPause() {
@@ -187,6 +188,7 @@ class CollarDetailActivity : AppCompatActivity() {
                 Response.Listener {
                     collarName.text = it.name
                     collarStimulus.text = getString(R.string.collarSummaryStimulus, it.stimulus)
+                    boundingBox = if (it.boundary.size >= 3) Polygon(it.boundary) else null
                 },
                 Response.ErrorListener {
                     Toast.makeText(this, "Failed to retrieve details of collar", Toast.LENGTH_SHORT)
@@ -197,17 +199,6 @@ class CollarDetailActivity : AppCompatActivity() {
         queue.add(detailRequest)
     }
 
-    /**
-     * Sets [mapPolygon]'s color, borders, and other relevant settings.
-     */
-    private fun configureMapPolygon() {
-        mapPolygon.fillPaint.color = Color.parseColor("#32a852")
-        mapPolygon.fillPaint.alpha = 127
-        mapPolygon.outlinePaint.color = Color.parseColor("#227539")
-        mapPolygon.outlinePaint.strokeWidth = 0.0f
-        mapPolygon.title = "Valid Grazing Area"
-    }
-
     /**
      * Given a new location history of the animal, configures
      * updates the [map] to include the relevant elements (such as the animal's
@@ -244,7 +235,7 @@ class CollarDetailActivity : AppCompatActivity() {
      */
     private fun updateBoundingBox(oldValue: Polygon?, polygon: Polygon) {
         if(oldValue == null) map.overlays.add(mapPolygon)
-        val points = polygon.dataPoints.map { GeoPoint(it.longitude.toDouble(), it.latitude.toDouble()) }
+        val points = polygon.dataPoints.map { GeoPoint(it.latitude.toDouble(), it.longitude.toDouble()) }
         val polygonPoints = points.toMutableList()
         polygonPoints.add(polygonPoints[0])
         mapPolygon.points = polygonPoints
@@ -256,6 +247,7 @@ class CollarDetailActivity : AppCompatActivity() {
      * the [mapPolygon] from the [map].
      */
     private fun clearBoundingBox() {
+        Log.d("FencelessGrazing", "Clearing...")
         map.overlays.remove(mapPolygon)
         map.invalidate()
     }

app/src/main/java/com/danilafe/fencelessgrazing/ui/components/GrazingPolygon.kt

@@ -0,0 +1,15 @@
+package com.danilafe.fencelessgrazing.ui.components
+
+import android.graphics.Color
+import org.osmdroid.views.MapView
+import org.osmdroid.views.overlay.Polygon
+
+class GrazingPolygon(map: MapView) : Polygon(map) {
+    init {
+        fillPaint.color = Color.parseColor("#32a852")
+        fillPaint.alpha = 127
+        outlinePaint.color = Color.parseColor("#227539")
+        outlinePaint.strokeWidth = 0.0f
+        title = "Valid Grazing Area"
+    }
+}