/**
   Indicates that a field defining a constant value may be referenced
   from native code.

 指示可以从本机代码引用定义常量值的字段。

   The annotation may be used as a hint by tools that generate native
   header files to determine whether a header file is required, and
   if so, what declarations it should contain.

 注释可以用作生成本机头文件的工具的提示，以确定是否需要头文件，如果需要，它应该包含哪些声明。
 * @since 1.8
 */
@Documented
@Target(ElementType.FIELD)
@Retention(RetentionPolicy.SOURCE)
public @interface Native {
}