Flutter plugin for ARCore SDK, Android platform to build new augmented reality experiences

arcore_flutter_plugin

flutter plugin for arcore sdk, android platform to build new augmented reality experiences

usage

i wrote 2 articles for setup you project and start with arcore flutter plugin:

arcore flutter plugin: configurations.

arcore flutter plugin: add object on the plane.

configure your app

to use this plugin, add arcore_flutter_plugin as a dependency in your pubspec.yaml file.

1. follow official guide to enable arcore
2. add the sceneform library to your app’s build.gradle file:

android {
    // sceneform libraries use language constructs from java 8.
    // add these compile options if targeting minsdkversion < 26.
    compileoptions {
        sourcecompatibility 1.8
        targetcompatibility 1.8
    }
}

dependencies {
    …

    // provides arfragment, and other ux resources.
    implementation 'com.google.ar.sceneform.ux:sceneform-ux:1.8.0'

    // alternatively, use arsceneview without the ux dependency.
    implementation 'com.google.ar.sceneform:core:1.8.0'
}

3. import the sceneform plugin into your project (optional)

example

the simplest code example:

import 'package:arcore_flutter_plugin/arcore_flutter_plugin.dart';
import 'package:flutter/material.dart';
import 'package:vector_math/vector_math_64.dart' as vector;

class helloworld extends statefulwidget {
  @override
  _helloworldstate createstate() => _helloworldstate();
}

class _helloworldstate extends state<helloworld> {
  arcorecontroller arcorecontroller;

  @override
  widget build(buildcontext context) {
    return materialapp(
      home: scaffold(
        appbar: appbar(
          title: const text('hello world'),
        ),
        body: arcoreview(
          onarcoreviewcreated: _onarcoreviewcreated,
        ),
      ),
    );
  }

  void _onarcoreviewcreated(arcorecontroller controller) {
    arcorecontroller = controller;

    _addsphere(arcorecontroller);
    _addcylindre(arcorecontroller);
    _addcube(arcorecontroller);
  }

  void _addsphere(arcorecontroller controller) {
    final material = arcorematerial(
        color: color.fromargb(120, 66, 134, 244));
    final sphere = arcoresphere(
      materials: [material],
      radius: 0.1,
    );
    final node = arcorenode(
      shape: sphere,
      position: vector.vector3(0, 0, -1.5),
    );
    controller.addarcorenode(node);
  }

  void _addcylindre(arcorecontroller controller) {
    final material = arcorematerial(
      color: colors.red,
      reflectance: 1.0,
    );
    final cylindre = arcorecylinder(
      materials: [material],
      radius: 0.5,
      height: 0.3,
    );
    final node = arcorenode(
      shape: cylindre,
      position: vector.vector3(0.0, -0.5, -2.0),
    );
    controller.addarcorenode(node);
  }

  void _addcube(arcorecontroller controller) {
    final material = arcorematerial(
      color: color.fromargb(120, 66, 134, 244),
      metallic: 1.0,
    );
    final cube = arcorecube(
      materials: [material],
      size: vector.vector3(0.5, 0.5, 0.5),
    );
    final node = arcorenode(
      shape: cube,
      position: vector.vector3(-0.5, 0.5, -3.5),
    );
    controller.addarcorenode(node);
  }

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

see the example directory for a complete sample app.

3d objects credits

anonymous

---

documentation

classes provided by the plugin

there are a total of 13 classes provided by this plugin until may 2020.

• arcoreview
• arcorecontroller
• arcorefaceview
• arcorefacecontrller
• arcoresphere
• arcorecylinder
• arcorecube
• arcorenode
• arcoematerial
• arcorehittestresult
• arcorerotatingnode
• arcoreplane
• arcorereferencenode

---

arcoreview

this class returns the view type. there are two types of views in it.

augmentedface
standardview

there are 4 properties in it:

• onarcoreviewcreated
• enabletaprecoginzer
• enableupdatelistener
• type

---

onarcoreviewcreated

this property takes a arcorecontroller.

---

enabletaprecoginzer

initially, set to false. it is used as an argument by the methodchannel.

---

enableupdatelistener

initially, set to false. it is used as an argument by the methodchannel.

---

type

it is a view type, it is either augmentedface, standardview*. it is set to standardview by default.

---

arcorecontroller

this controller used to add a arnode using addarcorenode function, add a arcorenode with ancher using a addarcorenodewithancher function and also remove node using removenode function.

---

arcorefaceview

it is a stateful widget that returns a arcoreandroidview. it has two properties enableaugmentedfaces, onarcoreviewcreated.

initially, enableaugmentedfaces is set to false.
onarcoreviewcreated takes a function with arcorecontroller argument.

---

arcorefacecontroller

it used dispose and loadmesh method to control the faceview.

---

arcoresphere

it is arcoreshape, takes a radius & arcorematerial.

---

arcorecylender

it is arcoreshape, takes a radius, height, & arcorematerial.

---

arcorecube

it is arcoreshape, takes a size i.e. vector3 & arcorematerial.

---

arcorenode

this widget is used to provide the position, shape, scale, rotation, name.

---

arcorematerial

it is used to describe the outlook of the virtual object created by the user.

it has color,texturebytes, metallic, roughness, reflection.

---

arcorerotatingnode

it is an arcorenode with a degreespersecond property which is a double value.

---

arcoreplane

it takes the x, y coordinate of the plane, arcorepose & arcoreplanetype.

there are three types of plane:

• horizontal_upward_facing
• horizontal_downward_facing
• vertical

---

arcorereferencenode

it is arcorenode, it has all the properties that the arcorenode has also it has objecturl and object3dfilename.

---

objecturl

url of glft object for remote rendering.

---

object3dfilename

filename of sfb object in assets folder.