Se agrego el sdk para el pda de honeywell

2026-06-19 08:57:58 -06:00
parent 50fe9a9d36
commit d6db216d2d
21 changed files with 1038 additions and 77 deletions
@@ -0,0 +1,62 @@
+import 'dart:async';
+import 'dart:io';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
+
+class ScanLaunchService {
+  ScanLaunchService._();
+
+  static final ScanLaunchService instance = ScanLaunchService._();
+
+  static const _methodChannel = MethodChannel('com.example.qrscanner/scan_launch');
+  static const _eventChannel = EventChannel('com.example.qrscanner/scan_events');
+
+  Stream<String>? _scanStream;
+
+  bool get isAndroid => !kIsWeb && Platform.isAndroid;
+
+  Stream<String> get scanStream {
+    _scanStream ??= _eventChannel
+        .receiveBroadcastStream()
+        .where((event) => event is String && event.trim().isNotEmpty)
+        .map((event) => (event as String).trim());
+    return _scanStream!;
+  }
+
+  Future<bool> isSupported() async {
+    if (!isAndroid) return false;
+    try {
+      final supported = await _methodChannel.invokeMethod<bool>('isSupported');
+      return supported ?? false;
+    } catch (_) {
+      return false;
+    }
+  }
+
+  Future<void> claimScanner() async {
+    if (!isAndroid) return;
+    try {
+      await _methodChannel.invokeMethod<void>('claimScanner');
+    } catch (_) {}
+  }
+
+  Future<void> releaseScanner() async {
+    if (!isAndroid) return;
+    try {
+      await _methodChannel.invokeMethod<void>('releaseScanner');
+    } catch (_) {}
+  }
+
+  Future<String?> consumePendingScan() async {
+    if (!isAndroid) return null;
+    try {
+      final code = await _methodChannel.invokeMethod<String>('consumePendingScan');
+      final trimmed = code?.trim();
+      if (trimmed == null || trimmed.isEmpty) return null;
+      return trimmed;
+    } catch (_) {
+      return null;
+    }
+  }
+}