从 Java 调用 Unity 函数 [英] Call Unity function from Java

问题描述

我是 unity 的新手:

I'm new to unity :

我在 Unity 中创建了一个简单的立方体并添加了一些纹理.我旋转立方体......移动相机......然后导出到android studio.当我运行时，一切都在 Unity 中.

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 everything looks like in Unity.

但我想从 android studio 代码(编程线)移动相机或立方体，我找不到任何方法来 .."findViewById" 或类似的能够找到我的立方体 :)

But I want to move camera or the cube from android studio code ( programming lines ) and I can not find any way to .."findViewById" or similar to be able to find my cube :)

我尝试制作一个 C# 文件(我只是在资产文件夹中创建一个)并放入:

I try to make a C# file ( I just crate one in assets folder ) and put :

public class test : MonoBehaviour {
public GameObject respawn;
void Start () {

    Debug.Log("aaaaaaaaaaaaa1111111111111111");
    if (respawn == null)
        respawn = GameObject.FindWithTag("mamaie");


    respawn.transform.Rotate(10f, 50f, 10f);

}

// Update is called once per frame
void Update () {
    transform.Rotate(10f, 50f, 10f);
}

void LateUpdate()
{
    transform.Rotate(10f, 50f, 10f);
}
}

那么……我如何从编程线控制我的立方体(统一设计并在 android studio 中导入)?

So... how can I control my cube ( designed in unity and imported in android studio ) from programming lines ?

推荐答案

您可以使用 UnityPlayer.UnitySendMessage 从 Java 调用 C# 函数.

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

这是参数的样子:

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

为了访问这个函数，你必须从 EditorDataPlaybackEnginesAndroidPlayerVariationsmonoRelease 中包含 classes.jarClasses 目录到您的 Android Studio 项目中，然后在 Android Studio 项目中使用 import com.unity3d.player.UnityPlayer; 将其导入.

In order to have access to this function, you have to include classes.jar from the <UnityInstallDirectory>EditorDataPlaybackEnginesAndroidPlayerVariationsmonoReleaseClasses directory into your Android Studio project then import it with import com.unity3d.player.UnityPlayer; in the Android Studio Project.

您的 C# 代码:

bool rotate = false;

void startRotating()
{
    rotate = true;
}

void stopRotating()
{
    rotate = false;
}

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

<小时>

假设上面的脚本附加到名为Cube"的游戏对象上.

---

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

从 Java 开始轮换:

To start rotation from Java:

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

从 Java 停止旋转:

To stop rotation from Java:

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

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