AndroidJavaObject.Call array passing error (Unity for Android)

Question

I\'m working on Unity for Android application, which uses native Android plugin. Inside of it I use AndroidJavaObject\'s Call method.

As it

Answer 1

Arrays require special treatment when being sent to an AndroidJavaObject. Taken from this article, you can implement a function that will handle it like so:

private AndroidJavaObject javaArrayFromCS(string [] values) {
    AndroidJavaClass arrayClass  = new AndroidJavaClass("java.lang.reflect.Array");
    AndroidJavaObject arrayObject = arrayClass.CallStatic<AndroidJavaObject>("newInstance", new AndroidJavaClass("java.lang.String"), values.Count());
    for (int i=0; i<values.Count(); ++i) {
        arrayClass.CallStatic("set", arrayObject, i, new AndroidJavaObject("java.lang.String", values[i])));
    }

    return arrayObject;
}

You can then call into your function like this:

myAndroidJavaObject.Call("myMethod", javaArrayFromCS(strings));

Answer 2

All you need to do is just cast the string array to an object, like the following code;

string[] strings = new string[] { "string1", "string2", ...};

myAndroidJavaObject.Call("myMethod", **(object)** strings);