如何从C调用Java方法++
我使用JNI调用我的C ++与Java的功能。其中一个C ++函数的参数是 jobject THIZ
(据我所知,所有的JNI本机的功能有这种说法)。该功能需要相当长时间才能完成,我想报告进度回 jobject THIZ
Java对象,这样我就可以显示进度给用户。我怎么能叫jobject的方法从C ++?
I am using JNI to call my C++ function from Java. One of the C++ function's arguments is jobject thiz
(as far as I know, all JNI native functions have this argument). The function takes quite long to complete and I want to report progress back to the jobject thiz
Java object, so that I can show the progress to the user. How can I call jobject's methods from C++?
您需要看看JNI函数的GetMethodID
和呼叫<类型>方法*
。
You need to look at the JNI functions GetMethodID
and Call<type>Method*
.
的各种变种的细节以及如何调用它们都记录了的 JNI规范。
The details of the various variants and how to call them are documented the JNI specification.