flutter_blue added for ios

lib/core/services/blue_print_service.dart

@@ -1,43 +1,106 @@
+import 'dart:io';
 import 'dart:typed_data';
 
 import 'package:aman_kassa_flutter/core/base/base_service.dart';
 import 'package:bluetooth_print/bluetooth_print.dart';
 import 'package:bluetooth_print/bluetooth_print_model.dart';
-
+import 'package:flutter_blue/flutter_blue.dart' as flutter_blue;
-
+import 'package:flutter_blue/gen/flutterblue.pb.dart' as proto;
 
 class BluePrintService extends BaseService {
-  BluetoothPrint _bluetooth = BluetoothPrint.instance;
+  final BluetoothPrint _bluetoothAndr = BluetoothPrint.instance;
+  flutter_blue.BluetoothDevice? _bluetoothDeviceIOS;
+  final flutter_blue.FlutterBlue _bluetoothIOS =
+      flutter_blue.FlutterBlue.instance;
+
+  final bool isAndroid = Platform.isAndroid;
+  final bool isIos = Platform.isIOS;
+  // final bool isAndroid = false;
+  // final bool isIos = true;
+
   BluetoothDevice? _device;
 
   Future<void> scan() async {
-    await _bluetooth.startScan(timeout: Duration(seconds: 4));
+    if (isAndroid) {
+      await _bluetoothAndr.startScan(timeout: Duration(seconds: 4));
+    } else if (isIos) {
+      await _bluetoothIOS.startScan(timeout: const Duration(seconds: 5));
+    }
   }
 
   Future<void> stopScan() async {
-    await _bluetooth.stopScan();
+    if (isAndroid) {
+      await _bluetoothAndr.stopScan();
+    } else if (isIos) {
+      await _bluetoothIOS.stopScan();
+    }
   }
 
-  Stream<List<BluetoothDevice>> get scanResult => _bluetooth.scanResults;
+  Stream<List<BluetoothDevice>> get scanResult {
+    if (isAndroid)
+      return _bluetoothAndr.scanResults;
+    else
+      return _bluetoothIOS.scanResults.asyncMap<List<BluetoothDevice>>(
+          (event) =>
+              Future.wait(event.toList().map((e) async => BluetoothDevice()
+                ..name = e.device.name
+                ..type = e.device.type.index
+                ..address = e.device.id.id)));
+  }
 
+  Stream<bool> get isScanning =>
+      isAndroid ? _bluetoothAndr.isScanning : _bluetoothIOS.isScanning;
+
+  Stream<int> get state => isAndroid
+      ? _bluetoothAndr.state
+      : _bluetoothIOS.state.asyncMap<int>((event) => event.index);
 
-  Stream<bool> get isScanning => _bluetooth.isScanning;
-  Stream<int> get state => _bluetooth.state;
   set device(BluetoothDevice device) => _device = device;
 
-
   Future<bool> connect() async {
     bool response = false;
     if (_device == null) {
       response = false;
     } else {
+      // try {
+      //   await _bluetoothAndr.connect(_device!);
+      //   await Future.delayed(Duration(seconds: 5));
+      //   response = true;
+      // } catch (e) {
+      //   print('Error connect $e');
+      //   response = false;
+      // }
+
       try {
-        await _bluetooth.connect(_device!);
+        if (isAndroid) {
-        await Future.delayed(Duration(seconds: 5));
+          await _bluetoothAndr.connect(_device!);
+        } else if (isIos) {
+          _bluetoothDeviceIOS = flutter_blue.BluetoothDevice.fromProto(
+            proto.BluetoothDevice(
+              name: _device?.name ?? '',
+              remoteId: _device?.address ?? '',
+              type: proto.BluetoothDevice_Type.valueOf(_device?.type ?? 0),
+            ),
+          );
+          final List<flutter_blue.BluetoothDevice> connectedDevices =
+              await _bluetoothIOS.connectedDevices;
+          final int deviceConnectedIndex = connectedDevices
+              .indexWhere((flutter_blue.BluetoothDevice bluetoothDevice) {
+            return bluetoothDevice.id == _bluetoothDeviceIOS?.id;
+          });
+          if (deviceConnectedIndex < 0) {
+            await _bluetoothDeviceIOS?.connect();
+          }
+        }
+
         response = true;
-      } catch (e) {
+        _device?.connected = true;
-        print('Error connect $e');
+        return Future<bool>.value(response);
+      } on Exception catch (error) {
+        print('$runtimeType - Error $error');
         response = false;
+        _device?.connected = false;
+        return Future<bool>.value(response);
       }
     }
     return response;
@@ -46,7 +109,11 @@ class BluePrintService extends BaseService {
   Future<bool> disconnect() async {
     bool response = false;
     try {
-      await _bluetooth.disconnect();
+      if (isAndroid) {
+        await _bluetoothAndr.disconnect();
+      } else if (isIos) {
+        await _bluetoothDeviceIOS?.disconnect();
+      }
       response = true;
     } catch (e) {
       print('Error $e');
@@ -55,21 +122,37 @@ class BluePrintService extends BaseService {
     return response;
   }
 
-  Future<bool> printBytes(Uint8List bytes, { int chunkSizeBytes = 20, int queueSleepTimeMs = 20 }) async {
+  Future<bool> printBytes(Uint8List bytes,
-    Map<String, dynamic> config = Map();
+      {int chunkSizeBytes = 20, int queueSleepTimeMs = 20}) async {
-    final len = bytes.length;
+    if (isAndroid) {
-    List<List<int>> chunks = [];
+      Map<String, dynamic> config = Map();
-    for (var i = 0; i < len; i += chunkSizeBytes) {
+      final len = bytes.length;
-      var end = (i + chunkSizeBytes < len) ? i + chunkSizeBytes : len;
+      List<List<int>> chunks = [];
-      chunks.add(bytes.sublist(i, end));
+      for (var i = 0; i < len; i += chunkSizeBytes) {
-    }
+        var end = (i + chunkSizeBytes < len) ? i + chunkSizeBytes : len;
+        chunks.add(bytes.sublist(i, end));
+      }
 
-    for (var i = 0; i < chunks.length; i += 1) {
+      for (var i = 0; i < chunks.length; i += 1) {
-      await _bluetooth.rawBytes(config, chunks[i]);
+        await _bluetoothAndr.rawBytes(config, chunks[i]);
-      await Future.delayed(Duration(milliseconds: queueSleepTimeMs));
+        await Future.delayed(Duration(milliseconds: queueSleepTimeMs));
+      }
+    } else if (isIos) {
+      final List<flutter_blue.BluetoothService> bluetoothServices =
+          await _bluetoothDeviceIOS?.discoverServices() ??
+              <flutter_blue.BluetoothService>[];
+      final flutter_blue.BluetoothService bluetoothService =
+          bluetoothServices.firstWhere(
+        (flutter_blue.BluetoothService service) => service.isPrimary,
+      );
+      final flutter_blue.BluetoothCharacteristic characteristic =
+          bluetoothService.characteristics.firstWhere(
+        (flutter_blue.BluetoothCharacteristic bluetoothCharacteristic) =>
+            bluetoothCharacteristic.properties.write,
+      );
+      await characteristic.write(bytes, withoutResponse: true);
     }
 
-
     return true;
   }
 }

lib/views/settings/setting_printer_view.dart

@@ -49,7 +49,13 @@ class _SettingPrinterViewState extends State<SettingPrinterView> {
     try {
       final SettingState state = Redux.store!.state.settingState!;
       printerManager.device = state.printerBT!;
-      await printerManager.connect();
+      bool isConnected = await printerManager.connect();
+      if(isConnected == false) {
+        await Future.delayed(Duration(seconds: 3));
+        await printerManager.disconnect();
+        return;
+      }
+      await Future.delayed(Duration(seconds: 3));
       bool isIos = Platform.isIOS;
       int chunkSizeBytes = 3096;
       int queueSleepTimeMs = 100;

pubspec.lock

@@ -78,6 +78,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.15.0"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.1"
   crypto:
     dependency: transitive
     description:
@@ -160,6 +167,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_blue:
+    dependency: "direct main"
+    description:
+      name: flutter_blue
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.8.0"
   flutter_lock_screen:
     dependency: "direct main"
     description:
@@ -491,7 +505,7 @@ packages:
       name: rxdart
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.27.3"
+    version: "0.26.0"
   shared_preferences:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -40,6 +40,7 @@ dependencies:
     permission_handler: ^8.3.0
     bluetooth_print:
         path: ../bluetooth_print
+    flutter_blue: ^0.8.0
 dev_dependencies:
     flutter_test:
         sdk: flutter