Android Unity 插件

Question

I want to use unity android plugin in my AR application. The app has an AR camera, an image target and a 3d object.

ON ECLIPSE :

I create a default android application on eclipse. I click build automatically and check project name -> proeprties -> isLibrary . I create a class named Bridge on eclipse project.

Bridge.java

package com.tutorial.pluginforunity;
public class Bridge {

    public static int ReturnInt() {
        return 5;
    }
}

ON UNITY : I create a BridgeForUnity.cs file. Conent of it :

using UnityEngine;
using System.Collections;
using System;
using System.Runtime.InteropServices;

public class BridgeForAndroid : MonoBehaviour {

    #if UNITY_ANDROID 
    //&& !UNITY_EDITOR
    public static int ReturnInt () {
        AndroidJavaClass ajc = new AndroidJavaClass("com.tutorial.pluginforunity.Bridge");
        return ajc.CallStatic<int>("ReturnInt") ;
    }
    #endif

    void Start () {

    }

    void Update () {

    }
}

I edit DefaultTrackableEventHandler.cs that attached to image target.

private void Update() {
    #if UNITY_ANDROID 
    GUI.Label(new Rect(10, 10, 100, 20), "Return = " + BridgeForAndroid.ReturnInt());
    #endif
    if (Input.GetKeyDown(KeyCode.Escape)) { Application.Quit(); }
}

I copy jar file under bin folder in eclipse project. I paste it under Assets/Plugins/Android.When I run this application, I see only black screen.

Answer 1

要查看插件的返回值，请将代码从Update移至OnGUI 。