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Unity Engine

AndroidJavaClass(string)

Construct an AndroidJavaClass from the class name.
Read time 1 minuteLast updated 10 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.
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.

Examples

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;        }    }}