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ARKit Flutter Plugin
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Latest commit bab7732 Feb 9, 2020

README.md

arkit_flutter_plugin

Codemagic build status flutter awesome pub package

Note: ARKit is only supported by mobile devices with A9 or later processors (iPhone 6s/7/SE/8/X, iPad 2017/Pro) on iOS 11 and newer. For some features iOS 12 is required.

Usage

Depend on it

Follow the installation instructions from Dart Packages site.

Update Info.plist

The plugin use native view from ARKit, which is not yet supported by default. To make it work add the following code to Info.plist:

    <key>io.flutter.embedded_views_preview</key>
    <string>YES</string>

ARKit uses the device camera, so do not forget to provide the NSCameraUsageDescription. You may specify it in Info.plist like that:

    <key>NSCameraUsageDescription</key>
    <string>Describe why your app needs AR here.</string>

Write the app

The simplest code example:

import 'package:flutter/material.dart';
import 'package:arkit_plugin/arkit_plugin.dart';
import 'package:vector_math/vector_math_64.dart';

void main() => runApp(MaterialApp(home: MyApp()));

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  ARKitController arkitController;

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

  @override
  Widget build(BuildContext context) => Scaffold(
      appBar: AppBar(title: const Text('ARKit in Flutter')),
      body: ARKitSceneView(onARKitViewCreated: onARKitViewCreated));

  void onARKitViewCreated(ARKitController arkitController) {
    this.arkitController = arkitController;
    final node = ARKitNode(
        geometry: ARKitSphere(radius: 0.1), position: Vector3(0, 0, -0.5));
    this.arkitController.add(node);
  }
}

Result:

flutter

Examples

I would highly recommend to review the sample from the Example folder. You may find a couple of samples in the Example folder of the plugin. Some samples rely on this Earth image

Name Description Link Demo
Hello World The simplest scene with different geometries. code twitter
Earth Sphere with an image texture and rotation animation. code twitter
Tap Sphere which handles tap event. code twitter
Plane Detection Detects horizontal plane. code twitter
Distance tracking Detects horizontal plane and track distance on it. code twitter
Measure Measures distances code twitter
Physics A sphere and a plane with dynamic and static physics code twitter
Image Detection Detects an earth image and puts a 3D object near it. code twitter
Custom Light Hello World scene with a custom light spot. code
Light Estimation Estimates and applies the light around you. code twitter
Custom Object Place custom object on plane. code twitter
Occlusion Spheres which are not visible after horizontal and vertical planes. code twitter
Manipulation Custom objects with pinch and rotation events. code twitter
Face Tracking Face mask sample. code twitter
Panorama 360 photo. code twitter
Custom Animation Custom object animation. Port of https://github.com/eh3rrera/ARKitAnimation code twitter
Widget Projection Flutter widgets in AR code twitter

UX advice

You might want to check the device capabilities before establishing an AR session. To do that the device_info plugin will be in hand. Check the documentation about AR functionality you want to add and implement some fallback logic for users with older OSes.

Before you go to AppStore

The plugin supports TrueDepth API. In case you didn't use it, your app will be rejected by Apple. Hence you need to remove any TrueDepth functionality by modifying your Podfile file

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      ... # Here are some configurations automatically generated by flutter

      config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] ||= [
        '$(inherited)',
        'REQUIRE_TRUEDEPTH_API=0',
      ]
    end
  end
end

Contributing

If you find a bug or would like to request a new feature, just open an issue. Your contributions are always welcome!

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