message fragment kinda works

app/src/main/java/com/geeksville/mesh/ui/MessagesFragment.kt

@@ -12,6 +12,7 @@ import com.geeksville.android.Logging
 import com.geeksville.mesh.R
 import com.geeksville.mesh.model.TextMessage
 import com.geeksville.mesh.model.UIViewModel
+import kotlinx.android.synthetic.main.adapter_message_layout.view.*
 import kotlinx.android.synthetic.main.messages_fragment.*
 
 
@@ -22,6 +23,8 @@ class MessagesFragment : ScreenFragment("Messages"), Logging {
     // Provide a direct reference to each of the views within a data item
     // Used to cache the views within the item layout for fast access
     class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        val username = itemView.username
+        val messageText = itemView.messageText
     }
 
     private val messagesAdapter = object : RecyclerView.Adapter<ViewHolder>() {
@@ -55,7 +58,7 @@ class MessagesFragment : ScreenFragment("Messages"), Logging {
             // Inflate the custom layout
 
             // Inflate the custom layout
-            val contactView: View = inflater.inflate(R.layout.adapter_node_layout, parent, false)
+            val contactView: View = inflater.inflate(R.layout.adapter_message_layout, parent, false)
 
             // Return a new holder instance
             return ViewHolder(contactView)
@@ -90,7 +93,21 @@ class MessagesFragment : ScreenFragment("Messages"), Logging {
          * @param position The position of the item within the adapter's data set.
          */
         override fun onBindViewHolder(holder: ViewHolder, position: Int) {
-            val n = messages[position]
+            val msg = messages[position]
+
+            val nodes = model.nodeDB.nodes.value!!
+
+            // If we can't find the sender, just use the ID
+            val node = nodes.get(msg.from)
+            val user = node?.user
+            holder.username.text = user?.shortName ?: msg.from
+
+            if (msg.errorMessage != null) {
+                // FIXME, set the style to show a red error message
+                holder.messageText.text = msg.errorMessage
+            } else {
+                holder.messageText.text = msg.text
+            }
         }
 
         private var messages = arrayOf<TextMessage>()

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

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_margin="8dp"
+    android:clipToPadding="false">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+        <com.google.android.material.chip.Chip
+            android:id="@+id/username"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginTop="8dp"
+            android:text="@string/some_username"
+            app:chipIcon="@drawable/ic_twotone_person_24"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <TextView
+            android:id="@+id/messageText"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="8dp"
+            android:text="@string/sample_message"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toEndOf="@+id/username"
+            app:layout_constraintTop_toTopOf="parent" />
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</LinearLayout>

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

@@ -11,4 +11,6 @@
     <string name="unknown_username">Unknown Username</string>
     <string name="user_avatar">User avatar</string>
     <string name="sample_distance">2.13 km</string>
+    <string name="sample_message">hey I found the cache, it is over here next to the big tiger. I\'m kinda scared.</string>
+    <string name="some_username">Some Username</string>
 </resources>