Starter project to build Android apps using Flutter & Unity with echoAR

Make sure you have an echoAR API key. If you don't have one yet, register for FREE at echoAR.

• Add a 3D model to the console.
• Create a new Unity project.
• Install the echoAR Unity SDK.
• Open the sample scence under echoAR/Examples/sample.unity.
• Set the API key in the Inspector of the echoAR game object.

• Open the Build Settings window by clicking File > Build Settings....
• Select Android and click Switch Platform.
• Check Export Project
• Open the Player Settings window by clicking Player Settings...
• Configure the folowing:
  • Other Settings > Rendering > Graphics APIs: OpenGLES3
  • Other Settings > Configuration > Scripting Backends: IL2CPP
  • Other Settings > Configuration > Target Architectures: ✔ ARMv7, ✔ ARM64
• Notice what is your Minimum API Level. You may need it later.
• Close the Player Settings window
• Click Add Open Scenes
• Click Export and save as unityExport

• Open the Build Settings window by clicking File > Build Settings....
• Select iOS and click Switch Platform.
• Click Add Open Scenes
• Click Export and save as unityProject

• Import the project dependecies by running flutter pub get from your terminal

• Copy your unityExport folder to <your_flutter_project>/android/unityExport
• Run flutter pub run flutter_unity:unity_export_transmogrify in your terminal
• Open <your_flutter_project>/android/app/build.gradle and make sure your project minSdkVersion equals to the one you defined for your Unity Project as Minimum API Level.
• Open <your_flutter_project>/android/build.gradle and, inside allprojects { repositories {} }, add the following:

  flatDir {
      dirs "${project(':unityExport').projectDir}/libs"
  }
  

  so it will look something like this:

          allprojects {
      repositories {
          google()
          jcenter()
          flatDir {
              dirs "${project(':unityExport').projectDir}/libs"
                  }
              }
          }
  

• Open <your_flutter_project>/android/settings.gradle and add the following at the end of the file:include ':unityExport'

• Copy your UnityProject folder to <your_flutter_project>/iOS/UnityProject
• Open <your_flutter_project>/iOS/Runner.xcworkspace in Xcode
• Go to File > Add Files to "Runner", and add <your_flutter_project>/ios/UnityProject/Unity-iPhone.xcodeproj
• Select Unity-iPhone/Data, and, in the Inspectors pane, set the Target Membership to UnityFramework
• Select Unity-iPhone, select PROJECT : Unity-iPhone, and, in the Build Settings tab, configure the following:
  • Build Options > Enable Bitcode: No
  • Linking > Other Linker Flags: -Wl,-U,_FlutterUnityPluginOnMessage
• Select Runner, select TARGETS : Runner, and, in the General tab, configure the following:
  • Frameworks, Libraries, and Embedded Content: UnityFramework.framework -> Embed & Sign
• Open Runner/Runner/Info.plist, and configure the following:

• Open your main.dart file
• Find and replace the value <YOUR-PROJECT-KEY> with your API key and uncomment the code line
• Find and replace the value <YOUR-ENTRY-ID> with your model's entry ID and uncomment the code line
• Save the file and run the project on an andorid phone

Refer to our documentation to learn more about how to use Unity and echoAR.

This project uses a third part library.

Feel free to reach out at [email protected] or join our support channel on Slack.