#if(CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)//条件编译语句        {                const char *message = "坑爹";//需要传递到Java层的字符串                JniMethodInfo methodInfo;                bool isHave = JniHelper::getStaticMethodInfo(methodInfo,                        "com/kengdie/test/Test",//需要调用的Java文件                        "showMessageFromNative",//调用的方法名                        "(Ljava/lang/String;)V");//参数                if(isHave){                        CCLog("the showMessage method is exits");                        jstring StringArg = methodInfo.env->NewStringUTF(message);                        methodInfo.env->CallStaticVoidMethod(methodInfo.classID, methodInfo.methodID, StringArg);                }else{                        CCLog("the showMessage method is not exits");                }        }#endif

public class Test extends Cocos2dxActivity{        ......        private static LinkUp context;        ......        protected void onCreate(Bundle savedInstanceState){                ......                context = this;                ......        }        public static void showMessageFromNative(String message){                    Message msg = new Message();                   msg.what = 1;                    msg.obj = message;                    handler.sendMessage(msg);        }        static Handler handler = new Handler(){                    @Override                public void handleMessage(android.os.Message msg) {                     switch (msg.what) {                        case 1:                                String message = (String) msg.obj;                                Toast.makeText(context, message, Toast.LENGTH_SHORT).show();                                break;                        default:                                break;                        }             };     };}