Show centered node join/leave overlay for 5s (v1.0.4)

- Replaces bottom toast: dark rounded card centered on screen,
  auto-hides after 5 seconds
- Optional test trigger via node_toast_test intent extra

app/src/main/java/ru/ua1zbe/svxremote/MainActivity.kt

@@ -9,6 +9,7 @@ import android.content.Intent
 import android.content.ServiceConnection
 import android.content.pm.PackageManager
 import android.net.Uri
+import android.graphics.PixelFormat
 import android.os.Build
 import android.os.Bundle
 import android.os.Handler
@@ -16,6 +17,7 @@ import android.os.IBinder
 import android.os.Looper
 import android.provider.Settings
 import android.util.Log
+import android.view.Gravity
 import android.view.View
 import android.view.WindowManager
 import android.widget.ImageButton
@@ -101,6 +103,11 @@ class MainActivity : Activity(), SvxService.Listener {
         btnSettings = findViewById(R.id.btn_settings)
         pttButton.enabled2 = false
 
+        val testText = intent?.getStringExtra("node_toast_test")
+        if (testText != null) {
+            mainHandler.postDelayed({ showNodeOverlay(testText) }, 1500)
+        }
+
         btnSettings.setOnClickListener {
             startActivity(Intent(this, SettingsActivity::class.java))
         }
@@ -170,6 +177,8 @@ class MainActivity : Activity(), SvxService.Listener {
 
     override fun onDestroy() {
         super.onDestroy()
+        hideNodeOverlay()
+        mainHandler.removeCallbacksAndMessages(null)
         SplashActivity.mainAlive = false
         svc?.listener = null
         unbindService(svcConn)
@@ -273,6 +282,53 @@ class MainActivity : Activity(), SvxService.Listener {
         // последний говоривший остаётся на экране
     }
 
+    override fun onNodeJoined(callsign: String, tg: Long?) {
+        showNodeToast(R.string.toast_node_joined, callsign, tg)
+    }
+
+    override fun onNodeLeft(callsign: String, tg: Long?) {
+        showNodeToast(R.string.toast_node_left, callsign, tg)
+    }
+
+    private fun showNodeToast(tpl: Int, callsign: String, tg: Long?) {
+        if (!Prefs.nodeToastsEnabled(this)) return
+        if (callsign.equals(settings.callsign, ignoreCase = true)) return
+        val suffix = if (tg != null) getString(R.string.node_tg_suffix, tg) else ""
+        mainHandler.post { showNodeOverlay(getString(tpl, callsign, suffix)) }
+    }
+
+    private var nodeOverlay: View? = null
+
+    private fun showNodeOverlay(text: String) {
+        hideNodeOverlay()
+        val view = layoutInflater.inflate(R.layout.view_node_toast, null, false)
+        view.findViewById<TextView>(R.id.lbl_node_toast).text = text
+        try {
+            windowManager.addView(
+                view,
+                WindowManager.LayoutParams(
+                    WindowManager.LayoutParams.WRAP_CONTENT,
+                    WindowManager.LayoutParams.WRAP_CONTENT,
+                    WindowManager.LayoutParams.TYPE_APPLICATION,
+                    WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE or
+                        WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE,
+                    PixelFormat.TRANSLUCENT
+                ).apply { gravity = Gravity.CENTER }
+            )
+            nodeOverlay = view
+            mainHandler.postDelayed({ hideNodeOverlay() }, 5000)
+        } catch (_: Exception) {
+            toast(text)
+        }
+    }
+
+    private fun hideNodeOverlay() {
+        nodeOverlay?.let { v ->
+            try { windowManager.removeView(v) } catch (_: Exception) { }
+            nodeOverlay = null
+        }
+    }
+
     override fun onAudioPacket(packet: ByteArray, seq: Int) {
     }
 

app/src/main/java/ru/ua1zbe/svxremote/SettingsActivity.kt

@@ -3,6 +3,7 @@ package ru.ua1zbe.svxremote
 import android.app.Activity
 import android.os.Bundle
 import android.widget.Button
+import android.widget.CheckBox
 import android.widget.EditText
 import android.widget.Toast
 import ru.ua1zbe.svxremote.prefs.ConnectionSettings
@@ -27,6 +28,8 @@ class SettingsActivity : Activity() {
         inputAuthKey = findViewById(R.id.input_auth_key)
         inputTg = findViewById(R.id.input_tg)
         inputGroups = findViewById(R.id.input_groups)
+        val chkNodeToasts = findViewById<CheckBox>(R.id.chk_node_toasts)
+        chkNodeToasts.isChecked = Prefs.nodeToastsEnabled(this)
 
         val s = Prefs.load(this)
         inputHost.setText(s.host)
@@ -63,6 +66,7 @@ class SettingsActivity : Activity() {
                     groups = groups
                 )
             )
+            Prefs.setNodeToastsEnabled(this, chkNodeToasts.isChecked)
             toast(getString(R.string.saved))
             finish()
         }

app/src/main/java/ru/ua1zbe/svxremote/SplashActivity.kt

@@ -63,6 +63,8 @@ class SplashActivity : Activity() {
                     Intent.FLAG_ACTIVITY_CLEAR_TOP or
                     Intent.FLAG_ACTIVITY_SINGLE_TOP
             )
+        val testText = this.intent?.getStringExtra("node_toast_test")
+        if (testText != null) intent.putExtra("node_toast_test", testText)
         startActivity(intent)
         overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out)
         finish()

app/src/main/java/ru/ua1zbe/svxremote/SvxService.kt

@@ -23,6 +23,8 @@ class SvxService : Service(), ReflectorClient.Callbacks {
         fun onServerInfo(info: MsgParser.ServerInfo)
         fun onTalkerStart(tg: Long, callsign: String)
         fun onTalkerStop(tg: Long, callsign: String)
+        fun onNodeJoined(callsign: String, tg: Long?)
+        fun onNodeLeft(callsign: String, tg: Long?)
         fun onAudioPacket(packet: ByteArray, seq: Int)
         fun onAudioFlush()
         fun onError(detail: String)
@@ -123,12 +125,14 @@ class SvxService : Service(), ReflectorClient.Callbacks {
     /** Текущий список подключенных узлов (копия для UI). */
     fun nodeList(): List<String> = synchronized(nodeSet) { nodeSet.toList() }
 
-    override fun onNodeJoined(callsign: String) {
+    override fun onNodeJoined(callsign: String, tg: Long?) {
         synchronized(nodeSet) { nodeSet.add(callsign) }
+        listener?.onNodeJoined(callsign, tg)
     }
 
-    override fun onNodeLeft(callsign: String) {
+    override fun onNodeLeft(callsign: String, tg: Long?) {
         synchronized(nodeSet) { nodeSet.remove(callsign) }
+        listener?.onNodeLeft(callsign, tg)
     }
 
     override fun onTalkerStart(tg: Long, callsign: String) {

app/src/main/java/ru/ua1zbe/svxremote/prefs/Prefs.kt

@@ -42,4 +42,14 @@ object Prefs {
             .putString("groups", s.groups.distinct().joinToString(","))
             .apply()
     }
+
+    fun nodeToastsEnabled(context: Context): Boolean {
+        return context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE)
+            .getBoolean("node_toasts", true)
+    }
+
+    fun setNodeToastsEnabled(context: Context, enabled: Boolean) {
+        context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE)
+            .edit().putBoolean("node_toasts", enabled).apply()
+    }
 }

app/src/main/java/ru/ua1zbe/svxremote/proto/ReflectorClient.kt

@@ -23,8 +23,8 @@ class ReflectorClient(
         fun onServerInfo(info: MsgParser.ServerInfo)
         fun onTalkerStart(tg: Long, callsign: String)
         fun onTalkerStop(tg: Long, callsign: String)
-        fun onNodeJoined(callsign: String)
-        fun onNodeLeft(callsign: String)
+        fun onNodeJoined(callsign: String, tg: Long?)
+        fun onNodeLeft(callsign: String, tg: Long?)
         /** Входящий аудиопакет Opus. */
         fun onAudioPacket(packet: ByteArray, seq: Int)
         fun onAudioFlush()
@@ -367,13 +367,13 @@ class ReflectorClient(
                 }
 
                 ReflectorProtocol.MSG_NODE_JOINED -> {
-                    val cs = parseSimpleString(msg.fields)
-                    callbacks.onNodeJoined(cs)
+                    val (cs, tg) = parseNodeEvent(msg.fields)
+                    callbacks.onNodeJoined(cs, tg)
                 }
 
                 ReflectorProtocol.MSG_NODE_LEFT -> {
-                    val cs = parseSimpleString(msg.fields)
-                    callbacks.onNodeLeft(cs)
+                    val (cs, tg) = parseNodeEvent(msg.fields)
+                    callbacks.onNodeLeft(cs, tg)
                 }
 
                 ReflectorProtocol.MSG_TALKER_START -> {
@@ -404,6 +404,17 @@ class ReflectorClient(
         return true
     }
 
+    private fun parseNodeEvent(fields: ByteArray): Pair<String, Long?> {
+        return try {
+            val r = BinReader(fields)
+            val cs = r.str().ifEmpty { "?" }
+            val tg = try { r.str().toLongOrNull() } catch (_: Exception) { null }
+            cs to tg
+        } catch (_: Exception) {
+            "?" to null
+        }
+    }
+
     private fun parseSimpleString(fields: ByteArray): String {
         return try {
             BinReader(fields).str().ifEmpty { "?" }

app/src/main/res/drawable/bg_node_toast.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="#E61B222A" />
+    <corners android:radius="24dp" />
+    <stroke android:width="1dp" android:color="#40FFFFFF" />
+</shape>

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

@@ -139,6 +139,15 @@
             android:padding="12dp"
             android:hint="9, 11, 12, 13" />
 
+        <CheckBox
+            android:id="@+id/chk_node_toasts"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="24dp"
+            android:text="@string/pref_node_toasts"
+            android:textColor="@color/text_primary"
+            android:textSize="15sp" />
+
         <Button
             android:id="@+id/btn_save"
             android:layout_width="match_parent"

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

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/node_toast_root"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:background="@drawable/bg_node_toast"
+    android:paddingLeft="24dp"
+    android:paddingRight="24dp"
+    android:paddingTop="14dp"
+    android:paddingBottom="14dp">
+
+    <TextView
+        android:id="@+id/lbl_node_toast"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:textColor="#F0F0F0"
+        android:textSize="16sp"
+        android:textStyle="bold" />
+</FrameLayout>

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

@@ -14,6 +14,10 @@
     <string name="toast_groups_empty">Добавьте группы в настройках</string>
     <string name="nodes_title">Узлы в сети (%1$d)</string>
     <string name="toast_nodes_empty">Нет подключенных узлов</string>
+    <string name="pref_node_toasts">Всплывающее уведомление о подключении/отключении узлов</string>
+    <string name="toast_node_joined">Подключился: %1$s%2$s</string>
+    <string name="toast_node_left">Отключился: %1$s%2$s</string>
+    <string name="node_tg_suffix"> (группа %1$d)</string>
     <string name="btn_save">Сохранить</string>
     <string name="app_version">SVXhomyak — v1.0.4</string>
     <string name="saved">Сохранено</string>