在android studio中为本地方法实现JNI生成C头文件(*.h)

Generate C header file (*.h) for native method implementation JNI in android studio(在android studio中为本地方法实现JNI生成C头文件(*.h))

问题描述

如何在Android Studio中自动生成包含原生方法实现JNI的函数原型的C头文件(*.h)?

How to generate C header file (*.h) containing the function prototype for the native method implementation JNI in Android studio while build automatically?

谢谢

推荐答案

假设你有一个项目 HelloNative

Assume you have a project HelloNative

HelloNative
   |-build/intermediate/classes/debug  (you get this directory upon project build)
   |-app/src/main/jni
        /src/main/java/com/planets/mercury/HelloNativeActivity.java

你想为 HelloNativeActivity.java 生成头文件 --> 这样做

And you want to generate the header file for HelloNativeActivity.java --> do this

cd HelloNative

javah -d app/src/main/jni -classpath /Users/john-smith/Android/sdk/platforms/android-19/android.jar:app/build/intermediates/classes/debug com.planets.mercury.HelloNativeActivity

将 john-smith 和 android sdk 路径替换为您自己机器上的路径.对于 android jar 文件.你可以使用任何你喜欢的东西.

Replace john-smith and android sdk path with what it is on your own machine. For the android jar file. You can use whatever is your choice.

例如.android-19 或 android-21

Eg. android-19, or android-21

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