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Unity Engine

AndroidJavaClass(string)

Construct an AndroidJavaClass from the class name.
Read time 1 minuteLast updated 4 days ago

Definition

  • Type: Constructor
  • Namespace: UnityEngine
  • Assembly: UnityEngine.AndroidJNIModule
public AndroidJavaClass(string className)

Parameters

className

string
Specifies the Java class name (e.g. \<tt\>java.lang.String\</tt\>).

Remarks

This essentially means locate the class type and allocate a \<tt\>java.lang.Class\</tt\> 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.
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);    }}
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.
object KotlinStringHelper {   @JvmStatic   fun getStringHashCode(inputString: String?): Int {       return inputString?.hashCode() ?: 0   }}
The following C# example shows how to call the Kotlin method in Unity.
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;        }    }}