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https://github.com/nicosnicolaou16/androidprojectandndk
This project is just the setup for the NDK in android, the communication Android project with C/C++ file. In this example we print only a text from C/C++ file to Android Project.
https://github.com/nicosnicolaou16/androidprojectandndk
android c cmake cplusplus cpp jetpack-android jetpack-compose kotlin kotlin-android ndk ndk-cmake
Last synced: about 1 month ago
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This project is just the setup for the NDK in android, the communication Android project with C/C++ file. In this example we print only a text from C/C++ file to Android Project.
- Host: GitHub
- URL: https://github.com/nicosnicolaou16/androidprojectandndk
- Owner: NicosNicolaou16
- Created: 2023-12-26T20:52:38.000Z (about 1 year ago)
- Default Branch: main
- Last Pushed: 2024-10-18T19:03:54.000Z (3 months ago)
- Last Synced: 2024-11-06T08:12:34.457Z (3 months ago)
- Topics: android, c, cmake, cplusplus, cpp, jetpack-android, jetpack-compose, kotlin, kotlin-android, ndk, ndk-cmake
- Language: Kotlin
- Homepage: https://medium.com/@nicosnicolaou/ndk-setup-on-android-flutter-android-project-1571d9a3f5cb
- Size: 159 KB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Android Project and NDK (Kotlin)
This project is just the setup for the NDK in android, the communication Android project with C/C++
file. In this example we print only a text from C/C++ file to Android Project.
## Similar project with (Dart Language)
https://github.com/NicosNicolaou16/FlutterAndroidProjectAndNDK
# Setup - Steps
- Install the latest NDK and CMake version from Android Studio SDK Manager from the SDK Tools
section.
- Create the cpp package, add the CMake .txt and .cpp file. Some name below is base on .cpp file
name.
```cmake
# For more information about using CMake with Android Studio, read the
# documentation: https://d.android.com/studio/projects/add-native-code.html
# Sets the minimum version of CMake required to build the native library.
cmake_minimum_required(VERSION 3.4.1)
# Creates and names a library, sets it as either STATIC
# or SHARED, and provides the relative paths to its source code.
# You can define multiple libraries, and CMake builds them for you.
# Gradle automatically packages shared libraries with your APK.
add_library( # Sets the name of the library.
message # based on .cpp file name
# Sets the library as a shared library.
SHARED
# Provides a relative path to your source file(s).
message.cpp) # based on .cpp file name
# Searches for a specified prebuilt library and stores the path as a
# variable. Because CMake includes system libraries in the search path by
# default, you only need to specify the name of the public NDK library
# you want to add. CMake verifies that the library exists before
# completing its build.
find_library( # Sets the name of the path variable.
log-lib
# Specifies the name of the NDK library that
# you want CMake to locate.
log)
# Specifies libraries CMake should link to your target library. You
# can link multiple libraries, such as libraries you define in this
# build script, prebuilt third-party libraries, or system libraries.
target_link_libraries( # Specifies the target library.
message # based on .cpp file name
# Links the target library to the log library
# included in the NDK.
${log-lib})
```
- Add the follow code in Gradle file.
```Kotlin
android {
//Other Gradle Code Here...
externalNativeBuild {
cmake {
path = file("src/main/cpp/CMakeLists.txt")
version = "3.31.0"
}
}
ndkVersion = "27.2.12479018"
//Other Gradle Code Here...
}
```
- Load the C/C++ file.
```Kotlin
companion object {
/**
* Load the C file
* */
init {
System.loadLibrary("message")
}
}
```
- Initialize the method(s) from .cpp file.
```Kotlin
private external fun message(): String
```
## Check my article
https://medium.com/@nicosnicolaou/ndk-setup-on-android-flutter-android-project-1571d9a3f5cb
# References/Tutorials Follow
https://github.com/android/ndk-samples
https://developer.android.com/studio/projects/add-native-code
https://blog.mindorks.com/getting-started-with-android-ndk-android-tutorial/
## Versions
Target SDK version: 35
Minimum SDK version: 28
Kotlin version: 2.0.21
Gradle version: 8.7.2