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ARMOD-Flutter App Demo

This repository is used to demonstrate how the AR-MOD SDK can be used in Flutter.

Getting Started

  1. Install this plugin to your flutter project. If you do not know how to install the Flutter Package you can click here to see the document.

    Install Guid

    The AR-MOD SDK currently provides a plug-in package for Flutter. You can install it through flutter_armod_widget: ^0.0.3 in your flutter project pubspec.yaml !

    # Other config
dependencies:
  flutter:
    sdk: flutter
  flutter_armod_widget: ^0.0.3
# Other config

  2. Go to PhantomsXR github respository. Download and Unzip it.

  3. Choose iOS or Android platform from the options below to set.

    Android Setup

    1. Go to the location of your FLUTTER SDK PATH/.pub-cache/hosted/pub.dartlang.org/flutter_armod_widget-0.0.3/ folder, then paste the libs to android platform folder.

    2. Run Flutter pub get command in your termial.

    iOS Setup

    1. Create the ThirdParties folder to your XCode project.

    2. Import UnityFramework.framework to the folder(ThridParties).

    3. Add the Framewrok to Xcode -> Targets -> Your APP -> General -> Franework,Libraries, and Embedded Content area, And set the Embed mode to Embed & Sign.

    4. Execute the cd iOS command and run Pod install command in your termial.

    5. Double-Click to open the Runner.xcworkspace file. It will be launch the XCode app.

    6. If you're using Swift, open the ios/Runner/AppDelegate.swift file and change the following:

          import UIKit
    import Flutter
+    import flutter_armod_widget

    @UIApplicationMain
    @objc class AppDelegate: FlutterAppDelegate {
        override func application(
            _ application: UIApplication,
            didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
        ) -> Bool {
+            InitARMODIntegrationWithOptions(argc: CommandLine.argc, argv: CommandLine.unsafeArgv, launchOptions)

            GeneratedPluginRegistrant.register(with: self)
            return super.application(application, didFinishLaunchingWithOptions: launchOptions)
        }
    }

      If you're using Objective-C, open the ios/Runner/main.m file and change the following:

      +    #import "flutter_armod_widget.swift.h"

    int main(int argc, char * argv[]) {
          @autoreleasepool {
+             InitARMODIntegration(argc, argv);
              return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
          }
    }

    7. Edit the info.plist

          <dict>
+        <key>io.flutter.embedded_views_preview</key>
+        <string>YES</string>
    </dict>
          <dict>
+        <key>Privacy - Camera Usage Description</key>
+        <string>$(PRODUCT_NAME) uses Cameras</string>
    </dict>
          <dict>
+       <key>NSBonjourServices</key>
+       <string>_dartobservatory._tcp</string>
    </dict>

  4. Create and write your app token to PhantomsXRConfig.dart.

  5. And write a new screen for AR-MOD.

Common mistakes

iOS Error

  • Q: ios/Flutter/Generated.xcconfig must exist.

    • A: Execute Flutter run command to generate the Generated.xcconfig file

  • Q: CocoaPods could not find compatible versions for pod "flutter_armod_widget"

    • A: Find and replace the platform :ios, '9.0' to platform :ios, '11.0' in the Podfile. Then Execute Pod update command to refresh your project.

Example Code

import 'dart:async';

import 'package:armod_flutter_store/src/model/data.dart';
import 'package:armod_flutter_store/src/themes/theme.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_armod_widget/flutter_armod_widget.dart';
import 'package:flutter_easyloading/flutter_easyloading.dart';

import '../config/phantomsxrConfig.dart';

class ARView extends StatefulWidget {
  ARView({Key? key}) : super(key: key);

  @override
  ARViewState createState() => ARViewState();
}

class ARViewState extends State<ARView> {
  late ARMODWidgetController _armodWidgetController;
  bool _onWillPop = false;
  @override
  void initState() {
    super.initState();
  }

  @override
  void dispose() {
    super.dispose();
  }

  Widget _appBar() {
    return SafeArea(
        top: true,
        child: GestureDetector(
          child: Container(
            padding: AppTheme.padding,
            child: Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: <Widget>[
                Container(
                  width: 25,
                  height: 25,
                  alignment: Alignment.center,
                  decoration: BoxDecoration(
                    color: Colors.white,
                    borderRadius: BorderRadius.all(Radius.circular(15)),
                  ),
                  child: Icon(Icons.close, color: Colors.black54, size: 20),
                )
              ],
            ),
          ),
          onTap: () async {
            bool willPop = await _onBackPressed();
            if (willPop) Navigator.of(context).pop(true);
          },
        ));
  }

  @override
  Widget build(BuildContext context) {
    return new WillPopScope(
      onWillPop: _onBackPressed,
      child: new Scaffold(
        body: SafeArea(
            top: true,
            child: Stack(
              children: [
                ARMODWidget(
                  onARMODCreated: onARMODCreate,
                  onARMODExit: onARMODExit,
                  onARMODLaunch: onARMODLaunch,
                  onAddLoadingOverlay: onAddLoadingOverlay,
                  onDeviceNotSupport: onDeviceNotSupport,
                  onNeedInstallARCoreService: onNeedInstallARCoreService,
                  onOpenBuiltInBrowser: onOpenBuiltInBrowser,
                  onPackageSizeMoreThanPresetSize:
                      onPackageSizeMoreThanPresetSize,
                  onRecognitionComplete: onRecognitionComplete,
                  onRecognitionStart: onRecognitionStart,
                  onRemoveLoadingOverlay: onRemoveLoadingOverlay,
                  onSdkInitialized: onSdkInitialized,
                  onThrowException: onThrowException,
                  onTryAcquireInformation: onTryAcquireInformation,
                  onUpdateLoadingProgress: onUpdateLoadingProgress,
                  fullscreen: true,
                ),
                _appBar()
              ],
            )),
      ),
    );
  }

  ///Handling the back event
  Future<bool> _onBackPressed() async {
    //Close AR-MOD SDK
    _armodWidgetController.unloadAndHideARMOD();

    while (!_onWillPop) {
      //We need to delayed executed because release AR-MOD operation is async.
      //May need to wait one more frame
      await Future.delayed(Duration(milliseconds: 1));
    }

    return _onWillPop;
  }

  showAlertDialog(BuildContext context, String title, String msg) {
    // set up the button
    Widget okButton = TextButton(
      child: Text("OK"),
      onPressed: () {
        Navigator.of(context).pop();
      },
    );

    // set up the AlertDialog
    AlertDialog alert = AlertDialog(
      title: Text(title),
      content: Text(msg),
      actions: [
        okButton,
      ],
    );

    // show the dialog
    showDialog(
      context: context,
      builder: (BuildContext context) {
        return alert;
      },
    );
  }

  Future<void> onARMODCreate(controller) async {
    this._armodWidgetController = controller;
    if (await _armodWidgetController.isLoaded() != false)
      _armodWidgetController.create();
  }

  void onARMODLaunch() {
    print("----------------------------");
    print("-------onARMODLaunch---------");
    print("----------------------------");
    _armodWidgetController.initARMOD(
        '{"EngineType":"Native","dashboardConfig":{"dashboardGateway":"https://weacw.com/api/v1/getarexperience","token":"${PhantomsXRConfig.AppToken}","timeout":30,"maximumDownloadSize":30},"imageCloudRecognizerConfig":{"gateway":"","maximumOfRetries":5,"frequencyOfScan":5}}');

    Future.delayed(Duration(milliseconds: 125),
        () => {_armodWidgetController.fetchProject(AppData.ar_experience_uid)});
  }

  void onThrowException(String errorMsg, int erorCode) {
    EasyLoading.dismiss();
    showAlertDialog(context, "(Error:$erorCode)", errorMsg);
  }

  void onARMODExit() {
    print("----------------------------");
    print("-------onARMODExit---------");
    print("----------------------------");
    _onWillPop = true;
  }

  void onUpdateLoadingProgress(progress) {
    EasyLoading.showProgress(progress,
        status: '${(progress * 100).toStringAsFixed(0)}%');
  }

  Future<String> onTryAcquireInformation(String opTag) async {
    await Future.delayed(Duration(seconds: 3));
    return "onTryAcquireInformation_$opTag";
  }

  void onAddLoadingOverlay() {
    EasyLoading.instance
      ..indicatorType = EasyLoadingIndicatorType.fadingCircle
      ..maskColor = Colors.red.withOpacity(0.5)
      ..dismissOnTap = false;
  }

  void onRemoveLoadingOverlay() {
    EasyLoading.dismiss();
  }

  void onDeviceNotSupport() {}

  void onRecognitionStart() {}

  void onNeedInstallARCoreService() {}

  void onSdkInitialized() {}

  void onOpenBuiltInBrowser(url) {}

  void onPackageSizeMoreThanPresetSize(currentSize, presetSize) {}

  void onRecognitionComplete() {}
}