Talk group switcher on main screen, auto-connect on launch

- Tapping the TG badge opens a group list; picking a group saves it and
  reconnects to the server with the new group
- Groups configured in settings (comma-separated), defaults 9,11,12,13
- Auto-connect at app launch to the default group from settings

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

@@ -105,38 +105,18 @@ class MainActivity : Activity(), SvxService.Listener {
             startActivity(Intent(this, SettingsActivity::class.java))
         }
 
+        lblTg.setOnClickListener { showGroupsDialog() }
+
         connectZone.setOnClickListener {
-            val s = svc
+            if (connected) {
-            if (connected && s != null) {
+                svc?.disconnect()
-                s.disconnect()
             } else {
-                settings = Prefs.load(this)
                 if (settings.host.isBlank() || settings.callsign.isBlank()) {
                     toast(getString(R.string.toast_need_settings))
                     return@setOnClickListener
                 }
-                if (checkSelfPermission(Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
+                requestPermissionsIfNeeded()
-                    requestPermissions(arrayOf(Manifest.permission.RECORD_AUDIO), REQ_MIC)
+                connect()
-                    return@setOnClickListener
-                }
-                if (Build.VERSION.SDK_INT >= 33 &&
-                    checkSelfPermission(Manifest.permission.POST_NOTIFICATIONS) != PackageManager.PERMISSION_GRANTED
-                ) {
-                    requestPermissions(arrayOf(Manifest.permission.POST_NOTIFICATIONS), REQ_NOTIF)
-                }
-                startForegroundService(Intent(this, SvxService::class.java))
-                bindService(Intent(this, SvxService::class.java), svcConn, Context.BIND_AUTO_CREATE)
-                mainHandler.postDelayed({
-                    svc?.connect(
-                        ReflectorClient.Settings(
-                            host = settings.host,
-                            port = settings.port,
-                            callsign = settings.callsign,
-                            authKey = settings.authKey,
-                            talkGroup = settings.talkGroup
-                        )
-                    )
-                }, 300)
             }
         }
 
@@ -167,10 +147,23 @@ class MainActivity : Activity(), SvxService.Listener {
         refreshUi()
     }
 
+    private var autoConnectAttempted = false
+
     override fun onResume() {
         super.onResume()
         settings = Prefs.load(this)
         refreshUi()
+        if (!autoConnectAttempted &&
+            settings.host.isNotBlank() &&
+            settings.callsign.isNotBlank()
+        ) {
+            autoConnectAttempted = true
+            requestPermissionsIfNeeded()
+            connect()
+        }
+        if (pendingUpdate != null && updateDialog == null && canInstall()) {
+            startUpdate()
+        }
     }
 
     override fun onDestroy() {
@@ -311,6 +304,62 @@ class MainActivity : Activity(), SvxService.Listener {
         pttButton.enabled2 = connected
     }
 
+    private fun requestPermissionsIfNeeded() {
+        if (checkSelfPermission(Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
+            requestPermissions(arrayOf(Manifest.permission.RECORD_AUDIO), REQ_MIC)
+        }
+        if (Build.VERSION.SDK_INT >= 33 &&
+            checkSelfPermission(Manifest.permission.POST_NOTIFICATIONS) != PackageManager.PERMISSION_GRANTED
+        ) {
+            requestPermissions(arrayOf(Manifest.permission.POST_NOTIFICATIONS), REQ_NOTIF)
+        }
+    }
+
+    /** Запустить сервис и подключиться с текущими настройками. */
+    private fun connect() {
+        startForegroundService(Intent(this, SvxService::class.java))
+        bindService(Intent(this, SvxService::class.java), svcConn, Context.BIND_AUTO_CREATE)
+        mainHandler.postDelayed({
+            svc?.connect(
+                ReflectorClient.Settings(
+                    host = settings.host,
+                    port = settings.port,
+                    callsign = settings.callsign,
+                    authKey = settings.authKey,
+                    talkGroup = settings.talkGroup
+                )
+            )
+        }, 300)
+    }
+
+    /** Переключиться на другую группу: пересохранить и переподключиться. */
+    private fun switchGroup(tg: Long) {
+        settings = settings.copy(talkGroup = tg)
+        Prefs.save(this, settings)
+        refreshUi()
+        svc?.disconnect()
+        mainHandler.postDelayed({ connect() }, 500)
+    }
+
+    private fun showGroupsDialog() {
+        val groups = (settings.groups + settings.talkGroup).distinct()
+        if (groups.isEmpty()) {
+            toast(getString(R.string.toast_groups_empty))
+            return
+        }
+        val current = settings.talkGroup
+        AlertDialog.Builder(this)
+            .setTitle(R.string.select_tg)
+            .setItems(groups.map { tg ->
+                val label = getString(R.string.tg_badge, tg)
+                if (tg == current) "$label ✓" else label
+            }.toTypedArray()) { _, which ->
+                val tg = groups[which]
+                if (tg != current) switchGroup(tg)
+            }
+            .show()
+    }
+
     private fun checkForUpdates() {
         Thread {
             val version = try {

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

@@ -15,6 +15,7 @@ class SettingsActivity : Activity() {
     private lateinit var inputCallsign: EditText
     private lateinit var inputAuthKey: EditText
     private lateinit var inputTg: EditText
+    private lateinit var inputGroups: EditText
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -25,6 +26,7 @@ class SettingsActivity : Activity() {
         inputCallsign = findViewById(R.id.input_callsign)
         inputAuthKey = findViewById(R.id.input_auth_key)
         inputTg = findViewById(R.id.input_tg)
+        inputGroups = findViewById(R.id.input_groups)
 
         val s = Prefs.load(this)
         inputHost.setText(s.host)
@@ -32,6 +34,7 @@ class SettingsActivity : Activity() {
         inputCallsign.setText(s.callsign)
         inputAuthKey.setText(s.authKey)
         inputTg.setText(s.talkGroup.toString())
+        inputGroups.setText(s.groups.joinToString(", "))
 
         findViewById<Button>(R.id.btn_save).setOnClickListener {
             val host = inputHost.text.toString().trim()
@@ -39,6 +42,10 @@ class SettingsActivity : Activity() {
             val callsign = inputCallsign.text.toString().trim()
             val authKey = inputAuthKey.text.toString()
             val tg = inputTg.text.toString().trim().toLongOrNull() ?: 11
+            val groups = inputGroups.text.toString()
+                .split(',')
+                .mapNotNull { it.trim().toLongOrNull() }
+                .distinct()
 
             if (host.isBlank() || callsign.isBlank()) {
                 toast(getString(R.string.toast_settings_empty))
@@ -52,7 +59,8 @@ class SettingsActivity : Activity() {
                     port = port.coerceIn(1, 65535),
                     callsign = callsign,
                     authKey = authKey,
-                    talkGroup = tg.coerceAtLeast(0)
+                    talkGroup = tg.coerceAtLeast(0),
+                    groups = groups
                 )
             )
             toast(getString(R.string.saved))

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

@@ -8,7 +8,8 @@ data class ConnectionSettings(
     val port: Int,
     val callsign: String,
     val authKey: String,
-    val talkGroup: Long
+    val talkGroup: Long,
+    val groups: List<Long> = emptyList()
 )
 
 object Prefs {
@@ -21,7 +22,12 @@ object Prefs {
             port = sp.getInt("port", 5300),
             callsign = sp.getString("callsign", "") ?: "",
             authKey = sp.getString("auth_key", "") ?: "",
-            talkGroup = sp.getLong("tg", 11)
+            talkGroup = sp.getLong("tg", 11),
+            groups = (sp.getString("groups", "") ?: "")
+                .split(',')
+                .mapNotNull { it.trim().toLongOrNull() }
+                .distinct()
+                .ifEmpty { listOf(9L, 11L, 12L, 13L) }
         )
     }
 
@@ -33,6 +39,7 @@ object Prefs {
             .putString("callsign", s.callsign.trim())
             .putString("auth_key", s.authKey)
             .putLong("tg", s.talkGroup)
+            .putString("groups", s.groups.distinct().joinToString(","))
             .apply()
     }
 }

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

@@ -110,7 +110,7 @@
             android:id="@+id/input_tg"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:layout_marginBottom="24dp"
+            android:layout_marginBottom="16dp"
             android:inputType="number"
             android:textColor="@color/text_primary"
             android:textColorHint="@color/text_secondary"
@@ -119,6 +119,26 @@
             android:padding="12dp"
             android:hint="11" />
 
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/pref_groups"
+            android:textColor="@color/text_primary"
+            android:textSize="15sp" />
+
+        <EditText
+            android:id="@+id/input_groups"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="24dp"
+            android:inputType="text"
+            android:textColor="@color/text_primary"
+            android:textColorHint="@color/text_secondary"
+            android:textSize="16sp"
+            android:background="@drawable/bg_input"
+            android:padding="12dp"
+            android:hint="9, 11, 12, 13" />
+
         <Button
             android:id="@+id/btn_save"
             android:layout_width="match_parent"

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

@@ -9,6 +9,9 @@
     <string name="pref_callsign">Позывной</string>
     <string name="pref_auth_key">Пароль (AUTH_KEY)</string>
     <string name="pref_tg">Группа вещания (TG)</string>
+    <string name="pref_groups">Группы для переключения (через запятую)</string>
+    <string name="select_tg">Выбор группы</string>
+    <string name="toast_groups_empty">Добавьте группы в настройках</string>
     <string name="btn_save">Сохранить</string>
     <string name="app_version">SVXhomyak — v1.0.2</string>
     <string name="saved">Сохранено</string>
@@ -26,7 +29,7 @@
     <string name="meter_mic">MIC</string>
     <string name="meter_idle">---</string>
     <string name="meter_db">-%1$d dB</string>
-    <string name="tg_badge">TG%1$d</string>
+    <string name="tg_badge">TG%1$d ▾</string>
     <string name="talker_last_none">Последний: —</string>
     <string name="status_connecting">Подключение…</string>
     <string name="status_connecting_ssl">Проверка ключа…</string>