AndroidJavaClass Constructor

Parameters

Description

Construct an AndroidJavaClass from the class name.

This essentially means locate the class type and allocate a java.lang.Class object of that particular type. It allows you to access static properties and methods of the Java/Kotlin classes without creating an instance or allocating additional memory.

The following code example demonstrates the use of AndroidJavaClass constructor for interacting with Java code. It shows how to access a static property from a Java class to retrieve the maximum possible value of an integer.

The following code examples demonstrate how to use the AndroidJavaClass constructor to interact with Kotlin code. The following Kotlin example defines a static method to compute the hash code of a string.

The following C# example shows how to call the Kotlin method in Unity.

using UnityEngine;

public class AccessJavaLangIntegerStatic : MonoBehaviour
{
    void Start()
    {
        var integerClass = new AndroidJavaClass("java.lang.Integer");
        int maxValue = integerClass.GetStatic<int>("MAX_VALUE");
        Debug.Log("java.lang.Integer.MAX_VALUE: " + maxValue);
    }
}

object KotlinStringHelper {
   @JvmStatic
   fun getStringHashCode(inputString: String?): Int {
       return inputString?.hashCode() ?: 0
   }
}

using UnityEngine;
public class KotlinExamples
{
    public static int GetKotlinStringHashCode(string text)
    {
        //Use Kotlin object name
        using (AndroidJavaClass kotlinClass = new AndroidJavaClass("KotlinStringHelper")) 
        {
            int hash = kotlinClass.CallStatic<int>("getStringHashCode", text);
            return hash;
        }
    }
}