package com.secondworld.universalsdk; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import org.json.JSONException; import org.json.JSONObject; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); JSONObject json = new JSONObject(); try { json.put("code", 9); } catch (JSONException e) { e.printStackTrace(); } H2EngineSDK.HandleUnityMessage(json.toString()); } }