Unity Mobile SDK

Android Environment

• Unity Library
• Android Plugin

Callback Function

Unity

• C#

  Plugin.CallTestFunc(
    delayMillis: 5000,
    onSuccess: () => {
      Debug.Log("[Plugin] CallTestFunc OnSuccess Called!"); 
    }, 
    onFailure: (exception) => {
      Debug.Log($"[Plugin] CallTestFunc OnFailure Called! : {exception.Message}");
    }
  );

Android

• Kotlin

  Plugin.TestFunc(
    /* delayMillis  : */ 5000,
    /* onSuccess    : */ { Log.d(TAG, "TestFunc OnSuccess Called!") },
    /* onFailure    : */ { Log.d(TAG, "TestFunc OnFailure Called! : ${it.message}") }
  )

• Java

  Plugin.TestFunc(
    /* delayMillis  : */ 5000,
    /* onSuccess    : */ () -> Log.d(TAG, "TestFunc OnSuccess Called!"),
    /* onFailure    : */ result -> Log.d(TAG, "TestFunc OnFailure Called! : " + result.getMessage())
  );

iOS

Reference

• How to Create Android Java Callbacks to C# in Unity //
• Integrating native iOS code into Unity