fix bluetooth device enumerate. (#281)

* fix bluetooth device enumerate.

* update README.md

* dart format.

* revert pubspec.yaml.

* fix analyzer.

README.md

@@ -117,11 +117,36 @@ We require a set of permissions that need to be declared in your `AppManifest.xm
   <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
   <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
   <uses-permission android:name="android.permission.BLUETOOTH" android:maxSdkVersion="30" />
+  <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
   <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" android:maxSdkVersion="30" />
   ...
 </manifest>
 ```
 
+For using the bluetooth headset correctly on the android device, you need to add `permission_handler` to your project.
+And call the following code after launching your app for the first time.
+
+```dart
+import 'package:permission_handler/permission_handler.dart';
+
+Future<void> _checkPremissions() async {
+  var status = await Permission.bluetooth.request();
+  if (status.isPermanentlyDenied) {
+    print('Bluetooth Permission disabled');
+  }
+  status = await Permission.bluetoothConnect.request();
+  if (status.isPermanentlyDenied) {
+    print('Bluetooth Connect Permission disabled');
+  }
+}
+
+void main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+  await _checkPremissions();
+  runApp(MyApp());
+}
+```
+
 ### Desktop support
 
 In order to enable Flutter desktop development, please follow [instructions here](https://docs.flutter.dev/desktop#set-up).

analysis_options.yaml

@@ -19,8 +19,6 @@ analyzer:
   # https://dash-overflow.net/articles/getting_started/#step-3-disabling-_implicit-dynamic_--_implicit-cast_
   #
   strong-mode:
-    implicit-casts: false
-    implicit-dynamic: false
 
   #
   # exclude protobuf files

example/analysis_options.yaml

@@ -19,8 +19,6 @@ analyzer:
   # https://dash-overflow.net/articles/getting_started/#step-3-disabling-_implicit-dynamic_--_implicit-cast_
   #
   strong-mode:
-    implicit-casts: false
-    implicit-dynamic: false
 
   #
   # exclude protobuf files
@@ -44,3 +42,5 @@ linter:
     # Turn off avoid_print for example projects
     #
     avoid_print: false
+    depend_on_referenced_packages: false
+    use_build_context_synchronously: false

example/android/app/src/main/AndroidManifest.xml

@@ -5,6 +5,7 @@
   <uses-feature android:name="android.hardware.camera.autofocus" />
   <uses-permission android:name="android.permission.CAMERA" />
   <uses-permission android:name="android.permission.BLUETOOTH" android:maxSdkVersion="30" />
+  <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
   <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" android:maxSdkVersion="30" />
   <uses-permission android:name="android.permission.RECORD_AUDIO" />
   <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

example/lib/pages/connect.dart

@@ -3,6 +3,7 @@ import 'package:flutter_svg/flutter_svg.dart';
 import 'package:livekit_client/livekit_client.dart';
 import 'package:livekit_example/widgets/text_field.dart';
 import 'package:shared_preferences/shared_preferences.dart';
+import 'package:permission_handler/permission_handler.dart';
 
 import '../exts.dart';
 import 'room.dart';
@@ -42,6 +43,9 @@ class _ConnectPageState extends State<ConnectPage> {
   void initState() {
     super.initState();
     _readPrefs();
+    if (lkPlatformIs(PlatformType.android)) {
+      _checkPremissions();
+    }
   }
 
   @override
@@ -51,6 +55,28 @@ class _ConnectPageState extends State<ConnectPage> {
     super.dispose();
   }
 
+  Future<void> _checkPremissions() async {
+    var status = await Permission.bluetooth.request();
+    if (status.isPermanentlyDenied) {
+      print('Bluetooth Permission disabled');
+    }
+
+    status = await Permission.bluetoothConnect.request();
+    if (status.isPermanentlyDenied) {
+      print('Bluetooth Connect Permission disabled');
+    }
+
+    status = await Permission.camera.request();
+    if (status.isPermanentlyDenied) {
+      print('Camera Permission disabled');
+    }
+
+    status = await Permission.microphone.request();
+    if (status.isPermanentlyDenied) {
+      print('Microphone Permission disabled');
+    }
+  }
+
   // Read saved URL and Token
   Future<void> _readPrefs() async {
     final prefs = await SharedPreferences.getInstance();

example/lib/widgets/controls.dart

@@ -276,6 +276,7 @@ class _ControlsWidgetState extends State<ControlsWidget> {
                 return [
                   PopupMenuItem<MediaDevice>(
                     value: null,
+                    onTap: isMuted ? _enableAudio : _disableAudio,
                     child: const ListTile(
                       leading: Icon(
                         EvaIcons.micOff,
@@ -283,7 +284,6 @@ class _ControlsWidgetState extends State<ControlsWidget> {
                       ),
                       title: Text('Mute Microphone'),
                     ),
-                    onTap: isMuted ? _enableAudio : _disableAudio,
                   ),
                   if (_audioInputs != null)
                     ..._audioInputs!.map((device) {
@@ -358,6 +358,7 @@ class _ControlsWidgetState extends State<ControlsWidget> {
                 return [
                   PopupMenuItem<MediaDevice>(
                     value: null,
+                    onTap: _disableVideo,
                     child: const ListTile(
                       leading: Icon(
                         EvaIcons.videoOff,
@@ -365,7 +366,6 @@ class _ControlsWidgetState extends State<ControlsWidget> {
                       ),
                       title: Text('Disable Camera'),
                     ),
-                    onTap: _disableVideo,
                   ),
                   if (_videoInputs != null)
                     ..._videoInputs!.map((device) {

example/pubspec.yaml

@@ -13,6 +13,7 @@ dependencies:
 
   intl: ^0.17.0
   flutter_background: ^1.1.0
+  permission_handler: ^10.2.0
   provider: ^6.0.1
   logging: ^1.0.1
   shared_preferences: ^2.0.7