Feat: Show channel number and name in direct message title (#1131)

* Feat: Show channel number and name in direct message title

This commit updates the message title to include the channel number and name when viewing direct messages.

This improves the user experience by providing more context about the conversation.

* Refactor: Improve message fragment toolbar

Use MaterialToolbar's built-in title and subtitle features to display channel name and number, simplifying the layout and improving UI consistency.

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

@@ -4,8 +4,15 @@ import android.graphics.Color
 import android.graphics.Rect
 import android.graphics.drawable.GradientDrawable
 import android.os.Bundle
-import android.view.*
-import android.widget.*
+import android.view.LayoutInflater
+import android.view.Menu
+import android.view.MenuItem
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Button
+import android.widget.ImageView
+import android.widget.TextView
+import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.view.ActionMode
 import androidx.cardview.widget.CardView
@@ -15,25 +22,30 @@ import androidx.core.view.allViews
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentManager
 import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.asLiveData
+import androidx.lifecycle.lifecycleScope
+import androidx.lifecycle.repeatOnLifecycle
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
-import com.geeksville.mesh.android.Logging
 import com.geeksville.mesh.DataPacket
 import com.geeksville.mesh.MessageStatus
 import com.geeksville.mesh.NodeInfo
 import com.geeksville.mesh.R
+import com.geeksville.mesh.android.Logging
 import com.geeksville.mesh.database.entity.Packet
 import com.geeksville.mesh.database.entity.QuickChatAction
 import com.geeksville.mesh.databinding.AdapterMessageLayoutBinding
 import com.geeksville.mesh.databinding.MessagesFragmentBinding
 import com.geeksville.mesh.model.UIViewModel
+import com.geeksville.mesh.model.getChannel
 import com.geeksville.mesh.util.Utf8ByteLengthFilter
 import com.google.android.material.chip.Chip
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.launch
 import java.text.DateFormat
-import java.util.*
+import java.util.Date
 
 // return time if within 24 hours, otherwise date/time
 internal fun getShortDateTime(date: Date): String {
@@ -232,7 +244,12 @@ class MessagesFragment : Fragment(), Logging {
                 holder.itemView.background = GradientDrawable().apply {
                     shape = GradientDrawable.RECTANGLE
                     cornerRadius = 32f
-                    setColor(ContextCompat.getColor(holder.itemView.context, R.color.colorAdvancedBackground))
+                    setColor(
+                        ContextCompat.getColor(
+                            holder.itemView.context,
+                            R.color.colorAdvancedBackground
+                        )
+                    )
                 }
             }
         }
@@ -288,7 +305,21 @@ class MessagesFragment : Fragment(), Logging {
 
         val contactKey = arguments?.getString("contactKey").toString()
         val contactName = arguments?.getString("contactName").toString()
-        binding.messageTitle.text = contactName
+        val title = contactName
+        binding.toolbar.title  = title
+        if (contactKey[1] == '!') {
+            lifecycleScope.launch {
+                repeatOnLifecycle(Lifecycle.State.STARTED) {
+                    val channelNumber = contactKey[0].digitToInt()
+                    model.channels.collect { channels ->
+                        val channelName =
+                            channels.getChannel(channelNumber)?.name ?: "Unknown Channel"
+                        val subtitle = "(ch: $channelNumber - $channelName)"
+                        binding.toolbar.subtitle = subtitle
+                    }
+                }
+            }
+        }
 
         fun sendMessageInputText() {
             val str = binding.messageInputText.text.toString().trim()
@@ -358,12 +389,14 @@ class MessagesFragment : Fragment(), Logging {
                     button.text = action.name
                     button.isEnabled = model.isConnected()
                     if (action.mode == QuickChatAction.Mode.Instant) {
-                        button.backgroundTintList = ContextCompat.getColorStateList(requireActivity(), R.color.colorMyMsg)
+                        button.backgroundTintList =
+                            ContextCompat.getColorStateList(requireActivity(), R.color.colorMyMsg)
                     }
                     button.setOnClickListener {
                         if (action.mode == QuickChatAction.Mode.Append) {
                             val originalText = binding.messageInputText.text ?: ""
-                            val needsSpace = !originalText.endsWith(' ') && originalText.isNotEmpty()
+                            val needsSpace =
+                                !originalText.endsWith(' ') && originalText.isNotEmpty()
                             val newText = buildString {
                                 append(originalText)
                                 if (needsSpace) append(' ')
@@ -421,6 +454,7 @@ class MessagesFragment : Fragment(), Logging {
                         }
                         .show()
                 }
+
                 R.id.selectAllButton -> {
                     // if all selected -> unselect all
                     if (messagesAdapter.selectedList.size == messagesAdapter.messages.size) {
@@ -434,6 +468,7 @@ class MessagesFragment : Fragment(), Logging {
                     actionMode?.title = messagesAdapter.selectedList.size.toString()
                     messagesAdapter.notifyDataSetChanged()
                 }
+
                 R.id.resendButton -> {
                     debug("User clicked resendButton")
                     val selectedList = messagesAdapter.selectedList

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

@@ -10,28 +10,13 @@
     <com.google.android.material.appbar.MaterialToolbar
         android:id="@+id/toolbar"
         style="@style/MyToolbar"
+        android:title="@string/channel_name"
         android:layout_width="match_parent"
-        android:layout_height="?attr/actionBarSize"
+        app:layout_constraintHeight_min="?attr/actionBarSize"
+        android:layout_height="wrap_content"
         android:background="@color/toolbarBackground"
         app:layout_constraintTop_toTopOf="parent"
-        app:navigationIcon="?android:attr/homeAsUpIndicator">
-
-        <androidx.constraintlayout.widget.ConstraintLayout
-            android:layout_width="match_parent"
-            android:layout_height="match_parent">
-
-            <TextView
-                android:id="@+id/messageTitle"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:text="@string/channel_name"
-                android:textAppearance="@style/TextAppearance.Widget.AppCompat.Toolbar.Title"
-                app:layout_constraintBottom_toBottomOf="parent"
-                app:layout_constraintStart_toStartOf="parent"
-                app:layout_constraintTop_toTopOf="parent" />
-
-        </androidx.constraintlayout.widget.ConstraintLayout>
-    </com.google.android.material.appbar.MaterialToolbar>
+        app:navigationIcon="?android:attr/homeAsUpIndicator"/>
 
     <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/messageListView"