How to use the android.mk file?

In Android development, the Android.mk file is a makefile used to build Android applications. It is primarily used to define compilation and linking rules, as well as generate the final executable file.

Here is the usage method of the Android.mk file:

1. Create an Android.mk file: Create a file named Android.mk in the root directory of the project.
2. Define compile rules: Various commands can be used in the Android.mk file to define compile rules, including specifying the compiler, compile options, source files, etc.
3. Defining link rules: In addition to defining compile rules, link rules can also be defined in the Android.mk file, specifying linker, link options, library files, etc.
4. Introducing other modules: In the Android.mk file, you can use the include command to bring in definitions from other modules, allowing you to manage the project by dividing it into multiple modules.
5. Compile project: Execute the ndk-build command in the root directory of the project, the system will read the Android.mk file and compile it, ultimately generating an executable file.

In general, the Android.mk file is a makefile used for building Android applications, which manages the project’s build process by defining compilation and linking rules.