Add a basic map view to app

app/build.gradle

@@ -23,6 +23,10 @@ android {
     }
 }
 
+repositories {
+    mavenCentral()
+}
+
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
@@ -35,4 +39,6 @@ dependencies {
     androidTestImplementation 'androidx.test.ext:junit:1.1.0'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
     implementation 'androidx.recyclerview:recyclerview:1.1.0'
+    implementation 'org.osmdroid:osmdroid-android:6.1.5'
+    implementation "androidx.preference:preference-ktx:1.1.0"
 }

app/src/main/AndroidManifest.xml

@@ -3,6 +3,8 @@
     package="com.danilafe.fencelessgrazing">
 
     <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"  />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 
     <application
         android:allowBackup="true"

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

@@ -2,23 +2,34 @@ package com.danilafe.fencelessgrazing
 
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import androidx.preference.PreferenceManager
 import androidx.recyclerview.widget.DividerItemDecoration
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
+import org.osmdroid.config.Configuration
+import org.osmdroid.tileprovider.tilesource.TileSourceFactory
+import org.osmdroid.views.MapView
 
 class CollarListActivity : AppCompatActivity() {
 
     private lateinit var token: String
     private lateinit var summaryAdapter: CollarSummaryAdapter
+    private lateinit var map: MapView
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+
+        Configuration.getInstance().load(applicationContext,
+            PreferenceManager.getDefaultSharedPreferences(applicationContext))
+
         setContentView(R.layout.activity_collar_list)
 
         val collarList: RecyclerView = findViewById(R.id.collarSummaryList)
         val layoutManager = LinearLayoutManager(collarList.context)
         token = intent.getStringExtra("token")!!
         summaryAdapter = CollarSummaryAdapter(collarList.context, getString(R.string.apiUrl), token)
+        map = findViewById(R.id.map)
+        map.setTileSource(TileSourceFactory.MAPNIK)
 
         collarList.adapter = summaryAdapter
         collarList.layoutManager = layoutManager
@@ -26,4 +37,14 @@ class CollarListActivity : AppCompatActivity() {
         summaryAdapter.triggerRefresh()
     }
 
+    override fun onResume() {
+        super.onResume()
+        map.onResume()
+    }
+
+    override fun onPause() {
+        super.onPause()
+        map.onPause()
+    }
+
 }

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

@@ -6,11 +6,20 @@
     android:layout_height="match_parent"
     tools:context=".CollarListActivity">
 
-    <androidx.recyclerview.widget.RecyclerView
-        android:id="@+id/collarSummaryList"
+    <org.osmdroid.views.MapView
+        android:id="@+id/map"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="0dp"
+        app:layout_constraintDimensionRatio="16:9"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/collarSummaryList"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/map"
+        tools:layout_editor_absoluteX="0dp" />
 </androidx.constraintlayout.widget.ConstraintLayout>