Move Android VAD activation to the radio toolbar

tools/chatgui-android/app/src/main/java/com/utun/chat/data/ConfigProvider.kt

@@ -349,6 +349,7 @@ class ConfigProvider(private val context: Context) {
     }
 
     val radioOverlayEnabled: Flow<Boolean> = context.dataStore.data.map { it[radioOverlayKey] ?: false }
+    val radioVadEnabled: Flow<Boolean> = context.dataStore.data.map { (it[radioVadEnabledKey] ?: 0) != 0 }
 
     @Volatile private var radioOverlayCached = false
     @Volatile private var radioOverlayLoaded = false

tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/ChatScreen.kt

@@ -249,7 +249,7 @@ private fun RadioPttButton(
     }
 }
 
-/* Единый выбор входа/выхода и переключатель плавающей PTT-кнопки. */
+/* Единый выбор входа/выхода, VAD и плавающая PTT-кнопка. */
 @Composable
 private fun RadioSourceBar(viewModel: ChatViewModel) {
     val radioAuto by viewModel.radioAuto.collectAsState()
@@ -260,6 +260,7 @@ private fun RadioSourceBar(viewModel: ChatViewModel) {
     val provider = ChatApplication.instance.configProvider
     val scope = rememberCoroutineScope()
     val overlayEnabled by provider.radioOverlayEnabled.collectAsState(initial = provider.getRadioOverlay())
+    val vadEnabled by provider.radioVadEnabled.collectAsState(initial = provider.getInt("radio.vad_enabled") != 0)
     val overlayShown by RadioOverlayService.isShown.collectAsState()
     val overlayStatus by RadioOverlayService.status.collectAsState()
 
@@ -299,6 +300,10 @@ private fun RadioSourceBar(viewModel: ChatViewModel) {
                     }
                 }
                 VerticalDivider(modifier = Modifier.height(32.dp), color = Color(0xFF344550))
+                RadioControlButton(null, stringResource(if (vadEnabled) R.string.disable_vad else R.string.enable_vad),
+                    vadEnabled, text = stringResource(R.string.vad_button)) {
+                    viewModel.setRadioVad(!vadEnabled)
+                }
                 RadioControlButton(null, stringResource(R.string.floating_ptt), overlayShown, floating = true) {
                     scope.launch {
                     if (overlayEnabled && !overlayShown) RadioOverlayService.requestPermissions()
@@ -317,7 +322,7 @@ private fun RadioSourceBar(viewModel: ChatViewModel) {
 @Composable
 private fun RadioControlButton(
     icon: ImageVector?, label: String, active: Boolean,
-    centerIcon: ImageVector? = null, bluetooth: Boolean = false, floating: Boolean = false, onClick: () -> Unit
+    centerIcon: ImageVector? = null, bluetooth: Boolean = false, floating: Boolean = false, text: String? = null, onClick: () -> Unit
 ) {
     IconToggleButton(
         checked = active,
@@ -327,6 +332,10 @@ private fun RadioControlButton(
             containerColor = Color(0xFF24323D), contentColor = Color(0xFFAEBCC8),
             checkedContainerColor = Color(0xFF1F6FEB), checkedContentColor = Color.White)
     ) {
+        if (text != null) {
+            Text(text, fontSize = 12.sp, modifier = Modifier.semantics { contentDescription = label })
+            return@IconToggleButton
+        }
         if (floating) {
             RadioFloatingIcon(label)
             return@IconToggleButton

tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/SettingsScreen.kt

@@ -567,24 +567,11 @@ private fun RadioSettingsTab() {
         modifier = Modifier.padding(16.dp).verticalScroll(rememberScrollState()),
         verticalArrangement = Arrangement.spacedBy(12.dp)
     ) {
-        var vadEnabled by remember { mutableStateOf(provider.getInt("radio.vad_enabled") != 0) }
         var vadThreshold by remember { mutableStateOf(provider.getInt("radio.vad_threshold")) }
         var vadHangover by remember { mutableStateOf(provider.getInt("radio.vad_hangover_ms")) }
         var vadCompMaxGain by remember { mutableStateOf(provider.getInt("radio.vad_compressor_max_gain_db")) }
         val vadActive by RadioAudioEngine.instance().vadActiveFlow.collectAsState()
         Text(stringResource(R.string.radio_vad), style = MaterialTheme.typography.titleMedium)
-        Row(verticalAlignment = Alignment.CenterVertically) {
-            Text(stringResource(R.string.enable_vad), modifier = Modifier.weight(1f))
-            Switch(checked = vadEnabled, onCheckedChange = { enabled ->
-                vadEnabled = enabled
-                scope.launch {
-                    provider.setValue("radio.vad_enabled", if (enabled) "1" else "0")
-                    NativeLib.setChatSetting("radio_vad_enabled", if (enabled) "1" else "0")
-                    if (enabled) RadioOverlayService.requestPermissions() else RadioOverlayService.sync(ChatApplication.instance)
-                    RadioAudioEngine.instance().reconfigure()
-                }
-            })
-        }
         Text(stringResource(if (vadActive) R.string.vad_active else R.string.vad_inactive),
             style = MaterialTheme.typography.bodySmall)
         Text(stringResource(R.string.vad_screen_hint),

tools/chatgui-android/app/src/main/java/com/utun/chat/viewmodel/ChatViewModel.kt

@@ -661,6 +661,19 @@ class ChatViewModel : ViewModel() {
         radioAudio.talkEnd()
     }
 
+    /** Переключатель авто-PTT на панели рации: сохранить выбор и перенастроить захват. */
+    fun setRadioVad(enabled: Boolean) {
+        if (!_radioActive.value) return
+        viewModelScope.launch {
+            val ctx = ChatApplication.instance
+            ctx.configProvider.setValue("radio.vad_enabled", if (enabled) "1" else "0")
+            NativeLib.setChatSetting("radio_vad_enabled", if (enabled) "1" else "0")
+            LogManager.addLog("INFO", "RadioAudio", "Panel VAD enabled=$enabled channel=$radioChannelId")
+            if (enabled) RadioOverlayService.requestPermissions() else RadioOverlayService.sync(ctx)
+            radioAudio.reconfigure()
+        }
+    }
+
     /** Ручной выбор выхода рации (динамик/гарнитура) — синхронизирует вход. */
     fun setRadioRoute(r: AudioRoute) {
         if (!_radioActive.value) return