added support for android extern intent result

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

@@ -25,6 +25,10 @@
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
+            <intent-filter>
+                <action android:name="com.google.zxing.client.android.SCAN" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
         </activity>
         <!-- Don't delete the meta-data below.
              This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->

zxscanner/lib/configs/app_store.dart

@@ -15,6 +15,8 @@ const String isVibrationOnPref = 'isVibrationOnPref';
 const String languagePref = 'languagePref';
 
 abstract class AppStoreBase with Store {
+  static bool isExternCall = false;
+
   @observable
   ThemeMode themeMode = ThemeMode.system;
 

zxscanner/lib/main.dart

@@ -1,8 +1,10 @@
+import 'dart:io' show Platform;
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:flutter_mobx/flutter_mobx.dart';
 import 'package:flutter_zxing/flutter_zxing.dart';
+import 'package:receive_intent/receive_intent.dart';
 
 import 'configs/app_store.dart';
 import 'configs/app_theme.dart';
@@ -31,6 +33,23 @@ class MyApp extends StatefulWidget {
 
 class _MyAppState extends State<MyApp> {
   final AppRouter _appRouter = AppRouter();
+  
+  @override
+  void initState() {
+    super.initState();
+    _init();
+  }
+
+  Future<void> _init() async {
+    if (Platform.isAndroid) {
+      final receivedIntent = await ReceiveIntent.getInitialIntent();
+      if(receivedIntent?.fromPackageName != null){
+        AppStoreBase.isExternCall = true;
+      }else{
+        AppStoreBase.isExternCall = false;
+      }
+    }
+  }
 
   @override
   Widget build(BuildContext context) {

zxscanner/lib/pages/scanner_page.dart

@@ -1,6 +1,9 @@
+import 'dart:io' show Platform;
 import 'package:flutter/material.dart';
 import 'package:flutter_zxing/flutter_zxing.dart';
+import 'package:receive_intent/receive_intent.dart';
 
+import '../configs/app_store.dart';
 import '../models/models.dart' as model;
 import '../utils/db_service.dart';
 import '../utils/extensions.dart';
@@ -34,5 +37,10 @@ class _ScannerPageState extends State<ScannerPage> {
     final model.Code code = model.Code.fromCodeResult(result);
     DbService.instance.addCode(code);
     context.showToast('Barcode saved:\n${code.text ?? ''}');
+    if (Platform.isAndroid) {
+      if(AppStoreBase.isExternCall) {
+        ReceiveIntent.setResult(kActivityResultOk, data: {"SCAN_RESULT": "${code.text ?? ''}"}, shouldFinish:true);
+      }
+    }
   }
 }

zxscanner/pubspec.yaml

@@ -30,6 +30,7 @@ dependencies:
   share_plus: ^7.0.0
   shared_preferences: ^2.0.0
   url_launcher: ^6.1.11
+  receive_intent: any
 
 flutter_intl:
   main_locale: en_US