Show last message in contacts list.

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

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:minHeight="?attr/listPreferredItemHeight"
+    android:paddingStart="?android:attr/listPreferredItemPaddingStart"
+    android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"
+    android:orientation="vertical" >
+
+    <TextView android:id="@android:id/text1"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
+        android:textAppearance="?android:attr/textAppearanceListItem"
+        android:textStyle="bold" />
+
+    <TextView android:id="@android:id/text2"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@android:id/text1"
+        android:layout_alignStart="@android:id/text1"
+        android:textAppearance="?android:attr/textAppearanceListItemSecondary" />
+
+</LinearLayout>

app/src/main/scala/com/nutomic/ensichat/util/UsersAdapter.scala

@@ -1,21 +1,38 @@
 package com.nutomic.ensichat.util
 
 import android.content.Context
-import android.view.{View, ViewGroup}
+import android.view.{LayoutInflater, View, ViewGroup}
 import android.widget.{ArrayAdapter, TextView}
 import com.nutomic.ensichat.bluetooth.Device
 import com.nutomic.ensichat.protocol.User
+import com.nutomic.ensichat.protocol.body.Text
+import com.nutomic.ensichat.R
 
 /**
  * Displays [[Device]]s in ListView.
  */
 class UsersAdapter(context: Context) extends
-  ArrayAdapter[User](context, android.R.layout.simple_list_item_1) {
+  ArrayAdapter[User](context, 0) {
+
+  private lazy val database = new Database(context)
 
   override def getView(position: Int, convertView: View, parent: ViewGroup): View = {
-    val view = super.getView(position, convertView, parent)
-    val title: TextView = view.findViewById(android.R.id.text1).asInstanceOf[TextView]
-    title.setText(getItem(position).name)
+    val view =
+      if (convertView == null) {
+        context.getSystemService(Context.LAYOUT_INFLATER_SERVICE)
+          .asInstanceOf[LayoutInflater]
+          .inflate(R.layout.item_user, parent, false)
+      } else
+        convertView
+    val title = view.findViewById(android.R.id.text1).asInstanceOf[TextView]
+    val summary = view.findViewById(android.R.id.text2).asInstanceOf[TextView]
+    val item = getItem(position)
+    title.setText(item.name)
+    database.getMessages(item.address, 1)
+      .map(_.body)
+      .foreach {
+        case m: Text => summary.setText(m.text)
+    }
     view
   }