text message gui for sneding kinda works

app/src/main/java/com/geeksville/mesh/MainActivity.kt

@@ -320,14 +320,9 @@ class MainActivity : AppCompatActivity(), Logging,
                         MeshProtos.Data.Type.CLEAR_TEXT_VALUE -> {
                             // FIXME - use the real time from the packet
                             // FIXME - don't just slam in a new list each time, it probably causes extra drawing.  Figure out how to be Compose smarter...
-                            val modded = MessagesState.messages.value.toMutableList()
-                            modded.add(
-                                TextMessage(
-                                    sender,
-                                    payload.toString(utf8)
-                                )
-                            )
-                            MessagesState.messages.value = modded
+                            val msg = TextMessage(sender, payload.toString(utf8))
+
+                            MessagesState.addMessage(msg)
                         }
                         else -> TODO()
                     }

app/src/main/java/com/geeksville/mesh/model/NodeDB.kt

@@ -46,5 +46,6 @@ object NodeDB {
     /// A map from nodeid to to nodeinfo
     val nodes = mutableStateOf(testNodes.map { it.user!!.id to it }.toMap())
 
-    val ourNodeInfo get() = nodes.value[myId.value!!] ?: error("our node not found")
+    /// Could be null if we haven't received our node DB yet
+    val ourNodeInfo get() = nodes.value[myId.value!!]
 }

app/src/main/java/com/geeksville/mesh/service/MeshService.kt

@@ -26,7 +26,7 @@ import com.google.protobuf.ByteString
 import java.nio.charset.Charset
 
 
-class RadioNotConnectedException() : Exception("Can't find radio")
+class RadioNotConnectedException() : Exception("Not connected to radio")
 
 
 /**

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

@@ -1,5 +1,6 @@
 package com.geeksville.mesh.ui
 
+import android.os.RemoteException
 import androidx.compose.Composable
 import androidx.compose.state
 import androidx.ui.core.Modifier
@@ -118,11 +119,15 @@ fun MessagesContent() {
                     var error: String? = null
                     val service = UIState.meshService
                     if (service != null)
-                        service.sendData(
-                            null,
-                            str.toByteArray(utf8),
-                            MeshProtos.Data.Type.CLEAR_TEXT_VALUE
-                        )
+                        try {
+                            service.sendData(
+                                null,
+                                str.toByteArray(utf8),
+                                MeshProtos.Data.Type.CLEAR_TEXT_VALUE
+                            )
+                        } catch (ex: RemoteException) {
+                            error = "Error: ${ex.message}"
+                        }
                     else
                         error = "Error: No Mesh service"
 

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

@@ -28,7 +28,7 @@ fun UserIcon(user: NodeInfo? = null, modifier: Modifier = Modifier.None) {
             modifier = LayoutGravity.Center
         )
         val ourNodeInfo = NodeDB.ourNodeInfo
-        val distance = ourNodeInfo.distanceStr(user)
+        val distance = ourNodeInfo?.distanceStr(user)
         if (distance != null)
             Text(distance, modifier = LayoutGravity.Center)
     }