Call Unity function from Java

Question

I\'m new to unity :

I create in Unity a simple cube and put some texture over. I rotate the cube... move camera....then export to android studio. When I run everythi

Answer 1

You can call C# function from Java with UnityPlayer.UnitySendMessage.

This is the what the parameters look like:

UnityPlayer.UnitySendMessage("GameObjectName", "MethodName", "parameter to send");

In order to have access to this function, you have to include classes.jar from the <UnityInstallDirectory>\Editor\Data\PlaybackEngines\AndroidPlayer\Variations\mono\Release\Classes directory into your Android Studio project then import it with import com.unity3d.player.UnityPlayer; in the Android Studio Project.

Your C# code:

bool rotate = false;

void startRotating()
{
    rotate = true;
}

void stopRotating()
{
    rotate = false;
}

void Update()
{
    if (rotate)
        transform.Rotate(10f, 50f, 10f);
}

---

Let's assume that the script above is attached to GameObject called "Cube".

To start rotation from Java:

UnityPlayer.UnitySendMessage("Cube", "startRotating", null);

To stop rotation from Java:

UnityPlayer.UnitySendMessage("Cube", "stopRotating", null);