Ensure consistency of longitude/latitude order and add a button to set boundary in collar details.

app/src/main/java/com/danilafe/fencelessgrazing/model/CollarDetails.kt

@@ -6,5 +6,6 @@ package com.danilafe.fencelessgrazing.model
  * @param id the collar's internal unique identifier.
  * @param name the collar's current designation in the system.
  * @param stimulus the number of stimulus activation reports in the last 24 hours.
+ * @param boundary the collar's current valid grazing boundary.
  */
-data class CollarDetails(val id: Int, val name: String, val stimulus: Int)
+data class CollarDetails(val id: Int, val name: String, val stimulus: Int, val boundary: List<CollarPos>)

app/src/main/java/com/danilafe/fencelessgrazing/model/CollarPos.kt

@@ -2,6 +2,7 @@ package com.danilafe.fencelessgrazing.model
 
 import android.os.Parcelable
 import kotlinx.android.parcel.Parcelize
+import org.osmdroid.util.GeoPoint
 
 /**
  * GPS coordinate returned by many of the project's API endpoints.
@@ -10,5 +11,7 @@ import kotlinx.android.parcel.Parcelize
  * @param latitude the latitude of the GPS point.
  */
 @Parcelize
-data class CollarPos(val longitude: String, val latitude: String) : Parcelable
+data class CollarPos(val longitude: String, val latitude: String) : Parcelable {
+    fun toGeoPoint(): GeoPoint = GeoPoint(latitude.toDouble(), longitude.toDouble())
+}
 

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

@@ -34,9 +34,7 @@ class BoundaryEditorActivity : AppCompatActivity(),
         setContentView(R.layout.activity_boundary_editor)
 
         val requestedCenter = intent.getParcelableExtra<CollarPos>("center")!!
-        center = GeoPoint(
-            requestedCenter.longitude.toDouble(),
-            requestedCenter.latitude.toDouble())
+        center = requestedCenter.toGeoPoint()
         identifier = intent.getIntExtra("identifier", -1)
         queue = Volley.newRequestQueue(applicationContext)
 

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

@@ -1,15 +1,18 @@
 package com.danilafe.fencelessgrazing.ui.activities
 
+import android.content.Intent
 import android.graphics.Color
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
 import android.util.Log
+import android.view.View
 import android.widget.TextView
 import android.widget.Toast
 import com.android.volley.RequestQueue
 import com.android.volley.Response
 import com.android.volley.toolbox.Volley
 import com.danilafe.fencelessgrazing.R
+import com.danilafe.fencelessgrazing.model.CollarPos
 import com.danilafe.fencelessgrazing.model.Polygon
 import com.danilafe.fencelessgrazing.requests.authenticated.CollarDetailRequest
 import com.danilafe.fencelessgrazing.requests.authenticated.CollarHistoryRequest
@@ -174,7 +177,7 @@ class CollarDetailActivity : AppCompatActivity() {
                 token,
                 Response.Listener {
                     dataPoints =
-                        it.map { p -> GeoPoint(p.longitude.toDouble(), p.latitude.toDouble()) }
+                        it.map { p -> p.toGeoPoint() }
                 },
                 Response.ErrorListener {
                     Toast.makeText(this, "Failed to retrieve history of collar", Toast.LENGTH_SHORT)
@@ -199,6 +202,16 @@ class CollarDetailActivity : AppCompatActivity() {
         queue.add(detailRequest)
     }
 
+    fun changeGrazingBoundary(v : View) {
+        startActivity(Intent(this, BoundaryEditorActivity::class.java).apply {
+            val center = dataPoints.lastOrNull()?.let {
+                CollarPos(it.longitude.toString(), it.latitude.toString())
+            } ?: CollarPos("0", "0")
+            putExtra("center", center)
+            putExtra("identifier", collarId)
+        })
+    }
+
     /**
      * Given a new location history of the animal, configures
      * updates the [map] to include the relevant elements (such as the animal's
@@ -235,7 +248,7 @@ class CollarDetailActivity : AppCompatActivity() {
      */
     private fun updateBoundingBox(oldValue: Polygon?, polygon: Polygon) {
         if(oldValue == null) map.overlays.add(mapPolygon)
-        val points = polygon.dataPoints.map { GeoPoint(it.latitude.toDouble(), it.longitude.toDouble()) }
+        val points = polygon.dataPoints.map { it.toGeoPoint() }
         val polygonPoints = points.toMutableList()
         polygonPoints.add(polygonPoints[0])
         mapPolygon.points = polygonPoints

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

@@ -196,7 +196,7 @@ class CollarListActivity : AppCompatActivity() {
         centerSet = true
         val averageLongitude = summaries.map { it.pos.longitude.toDouble() }.average()
         val averageLatitude = summaries.map { it.pos.latitude.toDouble() }.average()
-        map.controller.setCenter(GeoPoint(averageLongitude, averageLatitude))
+        map.controller.setCenter(GeoPoint(averageLatitude, averageLongitude))
     }
 
     /**
@@ -208,7 +208,7 @@ class CollarListActivity : AppCompatActivity() {
             // Create or update overlay
             val overlay = collarOverlays[it.id] ?: Marker(map)
             overlay.title = it.name
-            overlay.position = GeoPoint(it.pos.longitude.toDouble(), it.pos.latitude.toDouble())
+            overlay.position = it.pos.toGeoPoint()
 
             // Store new / existing overlay.
             if(!collarOverlays.containsKey(it.id)) map.overlays.add(overlay)

app/src/main/res/layout/activity_collar_detail.xml

@@ -29,9 +29,8 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginStart="10dp"
-        android:layout_marginTop="10dp"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/collarName" />
+        app:layout_constraintTop_toBottomOf="@+id/changeBoundaryButton" />
 
     <TextView
         android:id="@+id/collarStimulus"
@@ -42,4 +41,14 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/collarPos" />
 
+    <Button
+        android:id="@+id/changeBoundaryButton"
+        style="@style/Widget.AppCompat.Button.Colored"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:onClick="changeGrazingBoundary"
+        android:text="@string/changeGrazingBoundary"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/collarName" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/values/strings.xml

@@ -8,4 +8,7 @@
     <string name="collarSummaryStimulus">Required %1d stimuli in the last 24 hours</string>
     <string name="distanceTraveled">Distance Traveled</string>
     <string name="viewStatistics">View Statistics</string>
+    <string name="saveBoundary">Save Boundary</string>
+    <string name="addVertex">Add Vertex</string>
+    <string name="changeGrazingBoundary">Change Grazing Boundary</string>
 </resources>