What is the process of developing Android JNI?

The process of Android JNI development is as follows:

1. Write Java code: First, you need to write a Java class that contains JNI code. This class will include JNI methods that interact with C/C++ libraries.
2. Create a JNI header file: Generate a JNI header file using the “javah” command from the Java SDK. This header file will contain the declaration of JNI methods.
3. Write C/C++ code: Use C/C++ language to write C/C++ functions that correspond to JNI methods. These functions will facilitate interaction with Java code.
4. Compile C/C++ code: Use a C/C++ compiler to compile the code into a shared library, such as a .so file.
5. To import a shared library into an Android project: Copy the generated shared library file to the jniLibs directory of the Android project.
6. Invoke JNI method in Java code: Load the shared library in Java code using “System.loadLibrary()” method and call the JNI method.
7. Create and run applications: Build and run Android applications using Android development tools.

By following the steps above, you can use JNI to interact with C/C++ libraries in an Android application.