fix(ios): open settings from pairing recovery

android/app/src/main/kotlin/com/example/abawo_bt_app/MainActivity.kt

@@ -1,17 +1,11 @@
 package com.example.abawo_bt_app
 
-import android.content.Intent
 import android.os.Bundle
-import android.provider.Settings
 import io.flutter.embedding.android.FlutterActivity
-import io.flutter.embedding.engine.FlutterEngine
-import io.flutter.plugin.common.MethodChannel
 import io.reactivex.exceptions.UndeliverableException
 import io.reactivex.plugins.RxJavaPlugins
 
 class MainActivity: FlutterActivity() {
-    private val settingsChannel = "abawo/settings"
-
     override fun onCreate(savedInstanceState: Bundle?) {
         RxJavaPlugins.setErrorHandler { throwable ->
             val error = if (throwable is UndeliverableException && throwable.cause != null) {
@@ -29,27 +23,4 @@ class MainActivity: FlutterActivity() {
         }
         super.onCreate(savedInstanceState)
     }
-
-    override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
-        super.configureFlutterEngine(flutterEngine)
-        MethodChannel(flutterEngine.dartExecutor.binaryMessenger, settingsChannel)
-            .setMethodCallHandler { call, result ->
-                when (call.method) {
-                    "openBluetoothSettings" -> {
-                        try {
-                            startActivity(Intent(Settings.ACTION_BLUETOOTH_SETTINGS))
-                            result.success(true)
-                        } catch (_: Exception) {
-                            try {
-                                startActivity(Intent(Settings.ACTION_SETTINGS))
-                                result.success(true)
-                            } catch (_: Exception) {
-                                result.success(false)
-                            }
-                        }
-                    }
-                    else -> result.notImplemented()
-                }
-            }
-    }
 }

lib/util/bluetooth_settings.dart

@@ -1,31 +1,35 @@
 import 'dart:io';
 
+import 'package:app_settings/app_settings.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
-
-const MethodChannel _settingsChannel = MethodChannel('abawo/settings');
 
 Future<bool> openBluetoothSettings() async {
-  if (!Platform.isAndroid) {
-    return false;
-  }
-
   try {
-    return await _settingsChannel.invokeMethod<bool>('openBluetoothSettings') ??
-        false;
-  } on PlatformException {
+    if (Platform.isAndroid) {
+      await AppSettings.openAppSettings(type: AppSettingsType.bluetooth);
+    } else if (Platform.isIOS) {
+      await AppSettings.openAppSettings();
+    } else {
+      return false;
+    }
+    return true;
+  } catch (_) {
     return false;
   }
 }
 
 Future<void> showBluetoothPairingRecoveryDialog(BuildContext context) {
+  final isIOS = Platform.isIOS;
+  final content = isIOS
+      ? 'The connection opened, then broke while reading the device. This is probably a pairing problem.\n\nOn iOS, open Settings, go to Bluetooth, forget this device, then come back and connect again.'
+      : 'The connection opened, then broke while reading the device. This is probably a pairing problem.\n\nOpen Bluetooth settings, remove/forget this device, then come back and connect again.';
+  final settingsButtonLabel = isIOS ? 'Open Settings' : 'Open Bluetooth settings';
+
   return showDialog<void>(
     context: context,
     builder: (context) => AlertDialog(
       title: const Text('Bluetooth pairing may be broken'),
-      content: const Text(
-        'The connection opened, then broke while reading the device. This is probably a pairing problem.\n\nOpen Bluetooth settings, remove/forget this device, then come back and connect again.',
-      ),
+      content: Text(content),
       actions: [
         TextButton(
           onPressed: () => Navigator.of(context).pop(),
@@ -36,7 +40,7 @@ Future<void> showBluetoothPairingRecoveryDialog(BuildContext context) {
             Navigator.of(context).pop();
             await openBluetoothSettings();
           },
-          child: const Text('Open Bluetooth settings'),
+          child: Text(settingsButtonLabel),
         ),
       ],
     ),

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -5,6 +5,7 @@
 import FlutterMacOS
 import Foundation
 
+import app_settings
 import connectivity_plus
 import file_picker
 import flutter_blue_plus_darwin
@@ -15,6 +16,7 @@ import shared_preferences_foundation
 import sqlite3_flutter_libs
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  AppSettingsPlugin.register(with: registry.registrar(forPlugin: "AppSettingsPlugin"))
   ConnectivityPlusPlugin.register(with: registry.registrar(forPlugin: "ConnectivityPlusPlugin"))
   FilePickerPlugin.register(with: registry.registrar(forPlugin: "FilePickerPlugin"))
   FlutterBluePlusPlugin.register(with: registry.registrar(forPlugin: "FlutterBluePlusPlugin"))

pubspec.lock

@@ -33,6 +33,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.1"
+  app_settings:
+    dependency: "direct main"
+    description:
+      name: app_settings
+      sha256: "64d50e666fd96ae90301bf71205f05019286f940ad6f5fed3d1be19c6af7546a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.0"
   args:
     dependency: transitive
     description:

pubspec.yaml

@@ -54,6 +54,7 @@ dependencies:
   flutter_reactive_ble: ^5.4.0
   nb_utils: ^7.2.0
   file_picker: ^8.1.7
+  app_settings: ^7.0.0
 
 dev_dependencies:
   flutter_test: