仓库中添加内置的demo

demo/native/engine/common/Classes/JNIAndroid/JniTools.h

@@ -0,0 +1,18 @@
+//
+//  JniTools.hpp
+//  ZumaGame
+//
+//  Created by GongXH on 2021/3/26.
+//
+
+#ifndef JniTools_hpp
+#define JniTools_hpp
+#include "cocos.h"
+class JniTools
+{
+public:
+    //调用Java的方法
+    static std::string getVersionCode();
+    static int getBuildCode();
+};
+#endif /* JniTools_hpp */