Add Google Doc link.

README.md

@@ -0,0 +1,27 @@
+# Fenceless Grazing System App
+
+This is the repository for the mobile application part of the Fenceless
+Grazing System. The app is a rather standard Android application,
+written in the Kotlin programming language. To build the application,
+it is sufficient to run:
+
+```Bash
+./gradlew assembleDebug
+```
+
+This will produce an APK file which can then be loaded onto
+an Android device or emulator.
+
+Note that the application makes HTTP requests to a predefined
+API server URL, currently `dev.danilafe.com`. This is not suitable
+for testing if you do not have access to the domain. To
+reconfigure the application to use a different API
+URL, change the `apiUrl` entry in the application's `strings.xml` file:
+
+```XML
+<string name="apiUrl">http://your.domain </string>
+```
+
+The application will not be of much use if it is unable
+to reach the Fenceless Grazing API server. The server's
+repository can be found [here](https://dev.danilafe.com/CS-46X/server).

REVIEW.md

@@ -0,0 +1,10 @@
+# Code Review Changes
+
+https://docs.google.com/document/d/19d5U-ieQyGVVNQjj0rUouzIqF53evEP6yss-wyqNXiQ/edit?usp=sharing
+
+|Comment|Adjustment|
+|-------|----------|
+|The package `com.danilafe.fencelessgrazing` can be changed to something more relevant.| Package name follows standard conventions of reverse domain name. No changes made.|
+| (General remark) commenting is sparse.| Every function and field in the codebase documented using KDoc; documentation intermittently updated on [student website](https://web.engr.oregonstate.edu/~fedorind/CS46X/app/index.html).| 
+| No unit tests| Not worth it to do UI tests; [cow description language](https://dev.danilafe.com/CS-46x/cdl) developed for testing databases elsewhere.|
+| Missing README. | README added with compilation instructions; gradle wrapper adjusted to work out of the box.|

app/src/main/AndroidManifest.xml

@@ -13,10 +13,11 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".StatisticsActivity"/>
-        <activity android:name=".CollarDetailActivity" />
-        <activity android:name=".CollarListActivity" />
-        <activity android:name=".MainActivity">
+        <activity android:name=".ui.activities.BoundaryEditorActivity"></activity>
+        <activity android:name=".ui.activities.StatisticsActivity" />
+        <activity android:name=".ui.activities.CollarDetailActivity" />
+        <activity android:name=".ui.activities.CollarListActivity" />
+        <activity android:name=".ui.activities.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 

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

@@ -1,9 +1,17 @@
 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.
  *
  * @param longitude the longitude of the GPS point.
  * @param latitude the latitude of the GPS point.
  */
-data class CollarPos(val longitude: String, val latitude: String)
+@Parcelize
+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/requests/authenticated/AuthenticatedGetRequest.kt

@@ -1,4 +1,4 @@
-package com.danilafe.fencelessgrazing.requests
+package com.danilafe.fencelessgrazing.requests.authenticated
 
 import com.android.volley.Response
 import com.android.volley.toolbox.StringRequest
@@ -7,7 +7,7 @@ import com.android.volley.toolbox.StringRequest
  * General request aimed at a protected endpoint of the API. The token can be retrieved
  * via a [LoginRequest], or, if you've made it past the login screen, via Shared Preferences.
  *
- * The [AuthenticatedRequest] expects to receive a string from the API endpoint; how this string
+ * The [AuthenticatedGetRequest] expects to receive a string from the API endpoint; how this string
  * is handled is determined by the [Response.Listener] object. One may use
  * [Response.Listener.toGsonListener] to create a JSON deserializer that expects a [String].
  *
@@ -17,10 +17,10 @@ import com.android.volley.toolbox.StringRequest
  * @param listener the listener object called if a valid response is received.
  * @param error the error listener for the request.
  */
-open class AuthenticatedRequest(
+open class AuthenticatedGetRequest(
     baseUrl: String,
     apiEndpoint: String,
-    private val token: String,
+    val token: String,
     listener: Response.Listener<String>,
     error: Response.ErrorListener
 ) : StringRequest(

app/src/main/java/com/danilafe/fencelessgrazing/requests/authenticated/AuthenticatedPostRequest.kt

@@ -0,0 +1,42 @@
+package com.danilafe.fencelessgrazing.requests.authenticated
+
+import com.android.volley.Response
+import com.android.volley.toolbox.JsonObjectRequest
+import com.android.volley.toolbox.StringRequest
+import com.google.gson.Gson
+import com.google.gson.JsonObject
+import org.json.JSONObject
+
+/**
+ * General POST request aimed at a protected endpoint of the API. The token can be retrieved
+ * via a [com.danilafe.fencelessgrazing.requests.LoginRequest], or, if you've made it past the login
+ * screen, via Shared Preferences.
+ *
+ * @param value the value to send as JSON to the API.
+ * @param baseUrl the base URL of the API.
+ * @param apiEndpoint the API endpoint to send the request to.
+ * @param token the token to use to authenticate with the API.
+ * @param listener the listener to be called when a response is received.
+ * @param error the error handler to be called if a request fails.
+ */
+open class AuthenticatedPostRequest<T>(
+    private val value: T,
+    baseUrl: String,
+    apiEndpoint: String,
+    private val token: String,
+    listener: Response.Listener<String>,
+    error: Response.ErrorListener
+) : StringRequest(Method.POST, "${baseUrl}${apiEndpoint}",
+    listener, error
+) {
+
+    override fun getBody(): ByteArray = Gson().toJson(value).toByteArray()
+
+    override fun getBodyContentType(): String = "application/json"
+
+    override fun getHeaders(): MutableMap<String, String> {
+        val newMap = HashMap(super.getHeaders())
+        newMap["Authorization"] = "Bearer $token"
+        return newMap
+    }
+}

app/src/main/java/com/danilafe/fencelessgrazing/requests/authenticated/CollarDetailRequest.kt

@@ -1,11 +1,8 @@
-package com.danilafe.fencelessgrazing.requests
+package com.danilafe.fencelessgrazing.requests.authenticated
 
 import com.android.volley.Response
-import com.android.volley.toolbox.StringRequest
 import com.danilafe.fencelessgrazing.model.CollarDetails
-import com.danilafe.fencelessgrazing.model.CollarPos
-import com.danilafe.fencelessgrazing.model.CollarSummary
-import com.google.gson.reflect.TypeToken
+import com.danilafe.fencelessgrazing.requests.toGsonListener
 
 /**
  * Request to the `/collars/<id>/details` API endpoint. Retrieves detailed information
@@ -23,7 +20,7 @@ class CollarDetailRequest(
     token : String,
     listener: Response.Listener<CollarDetails>,
     error: Response.ErrorListener
-) : AuthenticatedRequest(
+) : AuthenticatedGetRequest(
     baseUrl, "/collars/$collarId/details", token,
     listener.toGsonListener(), error
 )

app/src/main/java/com/danilafe/fencelessgrazing/requests/authenticated/CollarHistoryRequest.kt

@@ -1,10 +1,8 @@
-package com.danilafe.fencelessgrazing.requests
+package com.danilafe.fencelessgrazing.requests.authenticated
 
 import com.android.volley.Response
-import com.android.volley.toolbox.StringRequest
 import com.danilafe.fencelessgrazing.model.CollarPos
-import com.danilafe.fencelessgrazing.model.CollarSummary
-import com.google.gson.reflect.TypeToken
+import com.danilafe.fencelessgrazing.requests.toGsonListener
 
 /**
  * A request to the `/collars/<id>/history` API endpoint. Retrieves the entire list
@@ -23,7 +21,7 @@ class CollarHistoryRequest(
     token : String,
     listener: Response.Listener<List<CollarPos>>,
     error: Response.ErrorListener
-) : AuthenticatedRequest(
+) : AuthenticatedGetRequest(
     baseUrl, "/collars/$collarId/history", token,
     listener.toGsonListener(), error
 )

app/src/main/java/com/danilafe/fencelessgrazing/requests/authenticated/CollarRequest.kt

@@ -1,9 +1,8 @@
-package com.danilafe.fencelessgrazing.requests
+package com.danilafe.fencelessgrazing.requests.authenticated
 
 import com.android.volley.Response
-import com.android.volley.toolbox.StringRequest
 import com.danilafe.fencelessgrazing.model.CollarSummary
-import com.google.gson.reflect.TypeToken
+import com.danilafe.fencelessgrazing.requests.toGsonListener
 
 /**
  * A request to the `/collars` API endpoint. Retrieves a list of collar summaries, represented
@@ -19,7 +18,7 @@ class CollarRequest(
     token : String,
     listener: Response.Listener<List<CollarSummary>>,
     error: Response.ErrorListener
-) : AuthenticatedRequest(
+) : AuthenticatedGetRequest(
     baseUrl, "/collars", token,
     listener.toGsonListener(), error
 )

app/src/main/java/com/danilafe/fencelessgrazing/requests/authenticated/DistanceTraveledRequest.kt

@@ -1,9 +1,8 @@
-package com.danilafe.fencelessgrazing.requests
+package com.danilafe.fencelessgrazing.requests.authenticated
 
 import com.danilafe.fencelessgrazing.model.CollarDistance
 import com.android.volley.Response
-import com.android.volley.toolbox.StringRequest
-import com.google.gson.reflect.TypeToken
+import com.danilafe.fencelessgrazing.requests.toGsonListener
 
 /**
  * A request to the `/collars/stats/distance` API endpoint. Retrieves
@@ -20,7 +19,7 @@ class DistanceTraveledRequest(
     token : String,
     listener: Response.Listener<List<CollarDistance>>,
     error: Response.ErrorListener
-) : AuthenticatedRequest(
+) : AuthenticatedGetRequest(
     baseUrl, "/collars/stats/distance", token,
     listener.toGsonListener(), error
 )

app/src/main/java/com/danilafe/fencelessgrazing/requests/authenticated/SetBoundaryRequest.kt

@@ -0,0 +1,28 @@
+package com.danilafe.fencelessgrazing.requests.authenticated
+
+import com.android.volley.Response
+import com.danilafe.fencelessgrazing.model.CollarPos
+
+/**
+ * Request to the API's `/collar/<id>/boundary/set` endpoint, used to update a collar's
+ * valid grazing area. Note that although this request takes an arbitrary number of points,
+ * the collar itself only supports at most 10 vertices.
+ *
+ * @param baseUrl the base URl of the API.
+ * @param token the API token used for authentication.
+ * @param identifier the collar whose boundary is being set.
+ * @param coordinates the list of coordinates representing, in order, the new grazing boundary's vertices.
+ * @param listener the listener to be called when an OK response is received.
+ * @param error the error listener.
+ */
+class SetBoundaryRequest(
+    baseUrl: String,
+    token: String,
+    identifier: Int,
+    coordinates: List<CollarPos>,
+    listener: Response.Listener<String>,
+    error: Response.ErrorListener
+) : AuthenticatedPostRequest<List<CollarPos>>(
+    coordinates, baseUrl, "/collars/${identifier}/boundary/set",
+    token, listener, error
+)

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

@@ -0,0 +1,168 @@
+package com.danilafe.fencelessgrazing.ui.activities
+
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.os.PersistableBundle
+import android.view.View
+import android.widget.Toast
+import androidx.appcompat.app.AlertDialog
+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.requests.authenticated.SetBoundaryRequest
+import com.danilafe.fencelessgrazing.ui.components.GrazingPolygon
+import org.osmdroid.util.GeoPoint
+import org.osmdroid.views.MapView
+import org.osmdroid.views.overlay.Marker
+import org.osmdroid.views.overlay.Polygon
+
+/**
+ * Activity used to update a grazing boundary for a particular collar.
+ */
+class BoundaryEditorActivity : AppCompatActivity(),
+    Marker.OnMarkerDragListener,
+    Marker.OnMarkerClickListener {
+
+    /**
+     * The map displaying the boundary vertices and polygon.
+     */
+    private lateinit var map: MapView
+
+    /**
+     * The list of markers representing the new grazing boundary's edges.
+     */
+    private val markers: MutableList<Marker> = mutableListOf()
+
+    /**
+     * The polygon used to display the grazing area on the [map].
+     */
+    private lateinit var polygon: GrazingPolygon
+
+    /**
+     * The center around which the [map] was originally centered,
+     * used also for creating new vertices.
+     */
+    private lateinit var center: GeoPoint
+
+    /**
+     * The identifier of the collar whose boundary is being changed.
+     */
+    private var identifier: Int = -1
+
+    /**
+     * The Volley queue used for sending API requests.
+     */
+    private lateinit var queue: RequestQueue
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_boundary_editor)
+
+        val requestedCenter = intent.getParcelableExtra<CollarPos>("center")!!
+        center = requestedCenter.toGeoPoint()
+        identifier = intent.getIntExtra("identifier", -1)
+        queue = Volley.newRequestQueue(applicationContext)
+
+        map = findViewById(R.id.editorMap)
+        polygon = GrazingPolygon(map)
+        map.overlays.add(polygon)
+        map.controller.setZoom(9.5)
+        map.controller.setCenter(center)
+    }
+
+    /**
+     * Removes a marker from the [map].
+     */
+    private fun removeMarker(m: Marker) {
+        markers.remove(m)
+        map.overlays.remove(m)
+        updatePolygon()
+        map.invalidate()
+    }
+
+    /**
+     * Sends the current list of points to the API endpoint, closing
+     * the activity if successful.
+     */
+    fun sendBoundary(v: View) {
+        val request = SetBoundaryRequest(
+            getString(R.string.apiUrl),
+            getSharedPreferences("FencelessGrazing",0).getString("token",null)!!,
+            identifier, markers.map {
+                CollarPos(it.position.longitude.toString(), it.position.latitude.toString())
+            },
+            Response.Listener<String> {
+                finish()
+            },
+            Response.ErrorListener {
+                Toast.makeText(
+                    this,
+                    "Failed to update grazing boundaries",
+                    Toast.LENGTH_SHORT).show()
+            }
+        )
+        queue.add(request)
+    }
+
+    /**
+     * Adds a new marker to the [map], starting it at the previously-configured
+     * [center].
+     */
+    fun addMarker(v : View) {
+        if(markers.size >= 10) {
+            Toast.makeText(
+                this,
+                "Cannot add more than ten vertices to grazing boundary",
+                Toast.LENGTH_SHORT).show()
+            return
+        }
+
+        val newMarker = Marker(map)
+        newMarker.isDraggable = true
+        newMarker.setOnMarkerClickListener(this)
+        newMarker.setOnMarkerDragListener(this)
+        newMarker.position = center
+        markers.add(newMarker)
+        map.overlays.add(newMarker)
+        updatePolygon()
+        map.invalidate()
+    }
+
+    /**
+     * Ensures that the polygon's vertices are synchronized
+     * with the user-placed markers, making it so that the
+     * grazing area is visible to the user.
+     */
+    private fun updatePolygon() {
+        polygon.points.clear()
+        if(markers.isEmpty()) return
+        val newPoints = markers.map { it.position }
+        polygon.points = newPoints
+        polygon.points.add(newPoints.first())
+    }
+
+    override fun onMarkerDragEnd(marker: Marker?) {
+        updatePolygon()
+        map.invalidate()
+    }
+
+    override fun onMarkerDragStart(marker: Marker?) {
+
+    }
+
+    override fun onMarkerDrag(marker: Marker?) {
+
+    }
+
+    override fun onMarkerClick(m: Marker, mv: MapView): Boolean {
+        AlertDialog.Builder(this)
+            .setTitle("Delete Marker")
+            .setMessage("Do you want to delete this marker?")
+            .setPositiveButton("Delete") { _, _ -> removeMarker(m) }
+            .setNegativeButton("Cancel") { d, _ -> d.dismiss() }
+            .show()
+        return true
+    }
+}

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

@@ -1,16 +1,22 @@
-package com.danilafe.fencelessgrazing
+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.CollarDetailRequest
-import com.danilafe.fencelessgrazing.requests.CollarHistoryRequest
+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
@@ -80,7 +86,7 @@ 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.
@@ -132,10 +138,9 @@ 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() {
@@ -166,36 +171,48 @@ class CollarDetailActivity : AppCompatActivity() {
      * Sends API requests that retrieve updated information about the collar.
      */
     private fun triggerRefresh() {
-        val historyRequest = CollarHistoryRequest(getString(R.string.apiUrl), collarId, token,
-            Response.Listener {
-                dataPoints = it.map { p -> GeoPoint(p.longitude.toDouble(), p.latitude.toDouble()) }
-            },
-            Response.ErrorListener {
-                Toast.makeText(this, "Failed to retrieve history of collar", Toast.LENGTH_SHORT).show()
-            }
-        )
-        val detailRequest = CollarDetailRequest(getString(R.string.apiUrl), collarId, token,
-            Response.Listener {
-                collarName.text = it.name
-                collarStimulus.text = getString(R.string.collarSummaryStimulus, it.stimulus)
-            },
-            Response.ErrorListener {
-                Toast.makeText(this, "Failed to retrieve details of collar", Toast.LENGTH_SHORT).show()
-            }
-        )
+        val historyRequest =
+            CollarHistoryRequest(getString(R.string.apiUrl),
+                collarId,
+                token,
+                Response.Listener {
+                    dataPoints =
+                        it.map { p -> p.toGeoPoint() }
+                },
+                Response.ErrorListener {
+                    Toast.makeText(this, "Failed to retrieve history of collar", Toast.LENGTH_SHORT)
+                        .show()
+                }
+            )
+        val detailRequest =
+            CollarDetailRequest(getString(R.string.apiUrl),
+                collarId,
+                token,
+                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)
+                        .show()
+                }
+            )
         queue.add(historyRequest)
         queue.add(detailRequest)
     }
 
     /**
-     * Sets [mapPolygon]'s color, borders, and other relevant settings.
+     * Open the [BoundaryEditorActivity] to edit the current collar's grazing boundary.
      */
-    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"
+    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)
+        })
     }
 
     /**
@@ -234,7 +251,7 @@ 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 { it.toGeoPoint() }
         val polygonPoints = points.toMutableList()
         polygonPoints.add(polygonPoints[0])
         mapPolygon.points = polygonPoints
@@ -246,6 +263,7 @@ 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/activities/CollarListActivity.kt

@@ -1,4 +1,4 @@
-package com.danilafe.fencelessgrazing
+package com.danilafe.fencelessgrazing.ui.activities
 
 import android.content.Intent
 import androidx.appcompat.app.AppCompatActivity
@@ -12,8 +12,11 @@ import androidx.recyclerview.widget.RecyclerView
 import com.android.volley.RequestQueue
 import com.android.volley.Response
 import com.android.volley.toolbox.Volley
+import com.danilafe.fencelessgrazing.ui.components.CollarClickListener
+import com.danilafe.fencelessgrazing.ui.components.CollarSummaryAdapter
+import com.danilafe.fencelessgrazing.R
 import com.danilafe.fencelessgrazing.model.CollarSummary
-import com.danilafe.fencelessgrazing.requests.CollarRequest
+import com.danilafe.fencelessgrazing.requests.authenticated.CollarRequest
 import org.osmdroid.config.Configuration
 import org.osmdroid.tileprovider.tilesource.TileSourceFactory
 import org.osmdroid.util.GeoPoint
@@ -116,17 +119,20 @@ class CollarListActivity : AppCompatActivity() {
      * Sends the request to the API to retrieve an updated list of active collars.
      */
     private fun triggerRefresh() {
-        val request = CollarRequest(getString(R.string.apiUrl), token,
-            Response.Listener {
-                summaries.clear()
-                summaries.addAll(it)
-                summaryAdapter.notifyDataSetChanged()
-                updateMap()
-            },
-            Response.ErrorListener {
-                Toast.makeText(this, "Failed to retrieve collar list!", Toast.LENGTH_SHORT).show()
-            }
-        )
+        val request =
+            CollarRequest(getString(R.string.apiUrl),
+                token,
+                Response.Listener {
+                    summaries.clear()
+                    summaries.addAll(it)
+                    summaryAdapter.notifyDataSetChanged()
+                    updateMap()
+                },
+                Response.ErrorListener {
+                    Toast.makeText(this, "Failed to retrieve collar list!", Toast.LENGTH_SHORT)
+                        .show()
+                }
+            )
         queue.add(request)
     }
 
@@ -158,12 +164,16 @@ class CollarListActivity : AppCompatActivity() {
      */
     private fun setupCollarList() {
         val layoutManager = LinearLayoutManager(collarList.context)
-        summaryAdapter = CollarSummaryAdapter(summaries, object : CollarClickListener {
-            override fun onCollarClick(collar: CollarSummary?) {
-                if (collar == null) return
-                startCollarDetailActivity(collar)
-            }
-        })
+        summaryAdapter =
+            CollarSummaryAdapter(
+                summaries,
+                object :
+                    CollarClickListener {
+                    override fun onCollarClick(collar: CollarSummary?) {
+                        if (collar == null) return
+                        startCollarDetailActivity(collar)
+                    }
+                })
         collarList.adapter = summaryAdapter
         collarList.layoutManager = layoutManager
         collarList.addItemDecoration(DividerItemDecoration(collarList.context, layoutManager.orientation))
@@ -186,7 +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))
     }
 
     /**
@@ -198,7 +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/java/com/danilafe/fencelessgrazing/ui/activities/DistanceTraveledGraph.kt

@@ -1,4 +1,4 @@
-package com.danilafe.fencelessgrazing
+package com.danilafe.fencelessgrazing.ui.activities
 
 import android.os.Bundle
 import android.view.LayoutInflater
@@ -9,8 +9,9 @@ import androidx.fragment.app.Fragment
 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.CollarDistance
-import com.danilafe.fencelessgrazing.requests.DistanceTraveledRequest
+import com.danilafe.fencelessgrazing.requests.authenticated.DistanceTraveledRequest
 import com.github.mikephil.charting.charts.BarChart
 import com.github.mikephil.charting.components.XAxis
 import com.github.mikephil.charting.data.BarData
@@ -61,14 +62,20 @@ class DistanceTraveledGraph() : Fragment() {
         val activity = requireActivity()
         val sharedPrefs = activity.getSharedPreferences("FencelessGrazing", 0)
         val token = sharedPrefs.getString("token", null)!!
-        val request = DistanceTraveledRequest(activity.getString(R.string.apiUrl), token,
-            Response.Listener {
-                updateChartData(it)
-            },
-            Response.ErrorListener {
-                Toast.makeText(activity, "Failed to retrieve distance traveled!", Toast.LENGTH_SHORT).show()
-            }
-        )
+        val request =
+            DistanceTraveledRequest(activity.getString(R.string.apiUrl),
+                token,
+                Response.Listener {
+                    updateChartData(it)
+                },
+                Response.ErrorListener {
+                    Toast.makeText(
+                        activity,
+                        "Failed to retrieve distance traveled!",
+                        Toast.LENGTH_SHORT
+                    ).show()
+                }
+            )
         queue.add(request)
     }
 

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

@@ -1,4 +1,4 @@
-package com.danilafe.fencelessgrazing
+package com.danilafe.fencelessgrazing.ui.activities
 
 import android.content.Intent
 import androidx.appcompat.app.AppCompatActivity
@@ -8,6 +8,7 @@ import android.widget.TextView
 import android.widget.Toast
 import com.android.volley.Response
 import com.android.volley.toolbox.Volley
+import com.danilafe.fencelessgrazing.R
 import com.danilafe.fencelessgrazing.requests.LoginRequest
 
 /**

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

@@ -1,10 +1,10 @@
-package com.danilafe.fencelessgrazing
+package com.danilafe.fencelessgrazing.ui.activities
 
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
-import androidx.fragment.app.FragmentActivity
-import androidx.viewpager.widget.ViewPager
 import androidx.viewpager2.widget.ViewPager2
+import com.danilafe.fencelessgrazing.R
+import com.danilafe.fencelessgrazing.ui.components.StatisticsGraphAdapter
 import com.google.android.material.tabs.TabLayout
 import com.google.android.material.tabs.TabLayoutMediator
 
@@ -37,7 +37,10 @@ class StatisticsActivity : AppCompatActivity() {
         tabLayout = findViewById(R.id.statisticsTabs)
         viewPager = findViewById(R.id.statisticsPager)
 
-        viewPager.adapter = StatisticsGraphAdapter(this)
+        viewPager.adapter =
+            StatisticsGraphAdapter(
+                this
+            )
         TabLayoutMediator(tabLayout, viewPager) { tab, position ->
             tab.text = tabNames[position]
         }.attach()

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

@@ -1,4 +1,4 @@
-package com.danilafe.fencelessgrazing
+package com.danilafe.fencelessgrazing.ui.components
 
 import com.danilafe.fencelessgrazing.model.CollarSummary
 

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

@@ -1,15 +1,12 @@
-package com.danilafe.fencelessgrazing
+package com.danilafe.fencelessgrazing.ui.components
 
-import android.content.Context
 import android.view.LayoutInflater
 import android.view.ViewGroup
-import android.widget.Toast
 import androidx.recyclerview.widget.ListAdapter
 import androidx.recyclerview.widget.DiffUtil
-import com.android.volley.Response
-import com.android.volley.toolbox.Volley
+import com.danilafe.fencelessgrazing.R
 import com.danilafe.fencelessgrazing.model.CollarSummary
-import com.danilafe.fencelessgrazing.requests.CollarRequest
+import com.danilafe.fencelessgrazing.requests.authenticated.CollarRequest
 
 /**
  * A [ListAdapter] subclass to display and manage a list of [CollarSummary] items
@@ -21,7 +18,9 @@ import com.danilafe.fencelessgrazing.requests.CollarRequest
 class CollarSummaryAdapter(
     private val items: List<CollarSummary>,
     private val collarClickListener: CollarClickListener
-) : ListAdapter<CollarSummary, CollarViewHolder>(DiffCallback()) {
+) : ListAdapter<CollarSummary, CollarViewHolder>(
+    DiffCallback()
+) {
 
     /**
      * [DiffUtil.ItemCallback] used for the [ListAdapter]. Compares items using
@@ -37,14 +36,17 @@ class CollarSummaryAdapter(
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CollarViewHolder {
         val layout = LayoutInflater.from(parent.context).inflate(viewType, parent, false)
-        return CollarViewHolder(layout)
+        return CollarViewHolder(
+            layout
+        )
     }
 
     override fun onBindViewHolder(holder: CollarViewHolder, position: Int) {
         holder.bindData(getItem(position), collarClickListener)
     }
 
-    override fun getItemViewType(position: Int): Int = R.layout.collar_summary_layout
+    override fun getItemViewType(position: Int): Int =
+        R.layout.collar_summary_layout
 
     override fun getItem(position: Int): CollarSummary = items[position]
 

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

@@ -1,8 +1,9 @@
-package com.danilafe.fencelessgrazing
+package com.danilafe.fencelessgrazing.ui.components
 
 import android.view.View
 import android.widget.TextView
 import androidx.recyclerview.widget.RecyclerView
+import com.danilafe.fencelessgrazing.R
 import com.danilafe.fencelessgrazing.model.CollarSummary
 
 /**
@@ -28,7 +29,8 @@ class CollarViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
      */
     fun bindData(summary: CollarSummary, collarClickListener: CollarClickListener) {
         nameView.text = summary.name
-        positionView.text = itemView.resources.getString(R.string.collarSummaryLocation,
+        positionView.text = itemView.resources.getString(
+            R.string.collarSummaryLocation,
             summary.pos.longitude.toDouble(), summary.pos.latitude.toDouble())
         itemView.setOnClickListener {
             collarClickListener.onCollarClick(summary)

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

@@ -0,0 +1,18 @@
+package com.danilafe.fencelessgrazing.ui.components
+
+import android.graphics.Color
+import org.osmdroid.views.MapView
+import org.osmdroid.views.overlay.Polygon
+
+/**
+ * OpenStreetMaps polygon with some default visual settings for the Fenceless Grazing System.
+ */
+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"
+    }
+}

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

@@ -1,13 +1,15 @@
-package com.danilafe.fencelessgrazing
+package com.danilafe.fencelessgrazing.ui.components
 
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentActivity
 import androidx.viewpager2.adapter.FragmentStateAdapter
+import com.danilafe.fencelessgrazing.ui.activities.DistanceTraveledGraph
 
 /**
  * Adapter for the [ViewPager2][androidx.viewpager2.widget.ViewPager2] class.
  */
 class StatisticsGraphAdapter(activity : FragmentActivity) : FragmentStateAdapter(activity) {
     override fun getItemCount(): Int = 1
-    override fun createFragment(position: Int): Fragment = DistanceTraveledGraph()
+    override fun createFragment(position: Int): Fragment =
+        DistanceTraveledGraph()
 }

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

@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.activities.BoundaryEditorActivity">
+
+    <org.osmdroid.views.MapView
+        android:id="@+id/editorMap"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        app:layout_constraintBottom_toTopOf="@id/saveButtonLayout"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+
+    </org.osmdroid.views.MapView>
+
+    <LinearLayout
+        android:id="@+id/saveButtonLayout"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent">
+
+        <Button
+            android:onClick="sendBoundary"
+            android:id="@+id/saveBoundaryButton"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="@string/saveBoundary" />
+
+        <Button
+            android:onClick="addMarker"
+            android:id="@+id/addVertexButton"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="@string/addVertex" />
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -4,7 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".CollarDetailActivity">
+    tools:context=".ui.activities.CollarDetailActivity">
     <org.osmdroid.views.MapView
         android:id="@+id/detailMap"
         android:layout_width="match_parent"
@@ -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/layout/activity_collar_list.xml

@@ -4,7 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".CollarListActivity">
+    tools:context=".ui.activities.CollarListActivity">
 
     <org.osmdroid.views.MapView
         android:id="@+id/map"

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

@@ -4,7 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".MainActivity">
+    tools:context=".ui.activities.MainActivity">
 
     <EditText
         android:id="@+id/username"

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

@@ -4,7 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".StatisticsActivity">
+    tools:context=".ui.activities.StatisticsActivity">
 
     <com.google.android.material.tabs.TabLayout
         android:id="@+id/statisticsTabs"

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>

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,5 @@
-#Sat Feb 01 14:34:24 PST 2020
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.4-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip

gradlew

@@ -1,5 +1,21 @@
 #!/usr/bin/env sh
 
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
 ##############################################################################
 ##
 ##  Gradle start up script for UN*X
@@ -28,7 +44,7 @@ APP_NAME="Gradle"
 APP_BASE_NAME=`basename "$0"`
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
@@ -109,8 +125,8 @@ if $darwin; then
     GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
 fi
 
-# For Cygwin, switch paths to Windows format before running java
-if $cygwin ; then
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
     JAVACMD=`cygpath --unix "$JAVACMD"`

gradlew.bat

@@ -1,3 +1,19 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
 @if "%DEBUG%" == "" @echo off
 @rem ##########################################################################
 @rem
@@ -14,7 +30,7 @@ set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
 
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome