Start work on collar details.

app/src/main/AndroidManifest.xml

@@ -13,7 +13,8 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".CollarListActivity"></activity>
+        <activity android:name=".CollarDetailActivity"></activity>
+        <activity android:name=".CollarListActivity" />
         <activity android:name=".MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

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

@@ -0,0 +1,7 @@
+package com.danilafe.fencelessgrazing
+
+import com.danilafe.fencelessgrazing.model.CollarSummary
+
+interface CollarClickListener {
+    fun onCollarClick(collar: CollarSummary?)
+}

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

@@ -0,0 +1,18 @@
+package com.danilafe.fencelessgrazing
+
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+
+class CollarDetailActivity : AppCompatActivity() {
+
+    private lateinit var token: String
+    private var collarId: Int = -1
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_collar_detail)
+
+        token = intent.getStringExtra("token")!!
+        collarId = intent.getIntExtra("identifier", -1)
+    }
+}

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

@@ -1,5 +1,6 @@
 package com.danilafe.fencelessgrazing
 
+import android.content.Intent
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
 import android.widget.Toast
@@ -36,7 +37,7 @@ class CollarListActivity : AppCompatActivity() {
     private val collarOverlays: MutableMap<Int, Marker> = mutableMapOf()
 
     // Timer used to schedule refresh
-    private val refreshTimer = Timer()
+    private var refreshTimer = Timer()
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -57,6 +58,7 @@ class CollarListActivity : AppCompatActivity() {
     override fun onResume() {
         super.onResume()
         map.onResume()
+        refreshTimer = Timer()
         refreshTimer.schedule(timerTask { triggerRefresh() }, 0L, 5000L)
     }
 
@@ -86,9 +88,22 @@ class CollarListActivity : AppCompatActivity() {
         map = findViewById(R.id.map)
     }
 
+    private fun startCollarDetailActivity(collar: CollarSummary) {
+        val newIntent = Intent(this, CollarDetailActivity::class.java).apply {
+            putExtra("token", token)
+            putExtra("identifier", collar.id)
+        }
+        startActivity(newIntent)
+    }
+
     private fun setupCollarList() {
         val layoutManager = LinearLayoutManager(collarList.context)
-        summaryAdapter = CollarSummaryAdapter(summaries)
+        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))

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

@@ -12,7 +12,8 @@ import com.danilafe.fencelessgrazing.model.CollarSummary
 import com.danilafe.fencelessgrazing.requests.CollarRequest
 
 class CollarSummaryAdapter(
-    private val items : List<CollarSummary>
+    private val items: List<CollarSummary>,
+    private val collarClickListener: CollarClickListener
 ) : ListAdapter<CollarSummary, CollarViewHolder>(DiffCallback()) {
 
     class DiffCallback : DiffUtil.ItemCallback<CollarSummary>() {
@@ -29,7 +30,7 @@ class CollarSummaryAdapter(
     }
 
     override fun onBindViewHolder(holder: CollarViewHolder, position: Int) {
-        holder.bindData(getItem(position))
+        holder.bindData(getItem(position), collarClickListener)
     }
 
     override fun getItemViewType(position: Int): Int = R.layout.collar_summary_layout

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

@@ -9,9 +9,12 @@ class CollarViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
     private val nameView: TextView = itemView.findViewById(R.id.collarSummaryName)
     private val positionView: TextView = itemView.findViewById(R.id.collarSummaryPos)
 
-    fun bindData(summary: CollarSummary) {
+    fun bindData(summary: CollarSummary, collarClickListener: CollarClickListener) {
         nameView.text = summary.name
         // TODO figure out how to get getString here.
         positionView.text = "Currently at ${summary.pos.longitude}, ${summary.pos.latitude}"
+        itemView.setOnClickListener {
+            collarClickListener.onCollarClick(summary)
+        }
     }
 }

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

@@ -0,0 +1,9 @@
+<?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=".CollarDetailActivity">
+
+</androidx.constraintlayout.widget.ConstraintLayout>