Unity Android Plugin Template

Setup

1. Rename app/androidplugin directory to the name of your choosing.

2. Update settings.gradle with the new path (keep the custom path separators :) and display name.

   include ':app:androidplugin'
   rootProject.name = "Unity Android Plugin"
   

3. Update package name in app/androidplugin/src/main/AndroidManifest.xml and app/androidplugin/src/main/java/com/unity/androidplugin/AndroidPlugin.java.

4. Build with make build.

Usage in Unity

1. Create a new folder in Unity's assets panel Plugins/Android.

2. Import the generated .aar file from dist/ into Plugins/Android.

3. Create an assembly definition in Plugins/Android, and select only Android and Editor under Platforms.

4. Create a script in Plugins/Android for accessing the plugin:

   using UnityEngine;
   
   public static class AndroidPlugin
   {
   
       private static AndroidJavaObject _androidPlugin;
   
       private static AndroidJavaObject androidPlugin
       {
           get
           {
               if (_androidPlugin != null)
               {
                   return _androidPlugin;
               }
   
               var javaUnityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
   
               var currentActivity = javaUnityPlayer.GetStatic<AndroidJavaObject>("currentActivity");
   
               _androidPlugin =
                   new AndroidJavaObject("com.unity.androidplugin.AndroidPlugin", currentActivity);
   
               return _androidPlugin;
           }
       }
   
       public static void Toast(string message)
       {
           androidPlugin.Call("ToastMakeText", message);
       }
   
   }

5. Then call the plugin via AndroidPlugin.Toast("Hello, world!");