![]() As shown in figure 2, you can see libnative-lib.so in theįigure 2.Select the APK or AAB from the app/build/outputs/ directory.Select Build > Build Bundles(s) / APK(s) > Build APK(s). To verify that Gradle packages the native library in the app, use the Which returns "Hello from C++" and uses it to update the TextView. MainActivity.onCreate() calls stringFromJNI(),.StringFromJNI(), is now available to the app. During runtime, the app's MainActivity loads the native.CMake follows commands in the build script to compile a C++ sourceįile, native-lib.cpp, into a shared object library and names.Gradle calls on your external build script,.The following overview describes the events that Build and run the sample appīuilds and launches an app that displays the text "Hello from C++" on yourĪndroid device or emulator. To learn more about the contents of this build script, readĬonfigure CMake. Script, CMakeLists.txt, and places it in your module’s root directory. For new projects, Android Studio creates a CMake build Your app, CMake and ndk-build require a build script to know how to build Similar to how adle files instruct Gradle how to build Source files to your project in the section about how to This sampleĬode provides a simple C++ function, stringFromJNI(), that In the src/main/cpp/ directory of your app module. For new projects, Android StudioĬreates a sample C++ source file, native-lib.cpp, and places it Libraries that are a part of your project. Source files, headers, build scripts for CMake or ndk-build, and prebuilt The cpp group is where you can find all the native On disk, but groups similar files to simplify navigating your project. Note: This view does not reflect the actual file hierarchy Android view groups for your native sources Project pane from the left side of the IDE and select theĪndroid view from the menu. Selecting ToolchainĪfter Android Studio finishes creating your new project, open the Select which standardization of C++ you want to use. Your project with the C++ Standard field. In the Customize C++ Support section of the wizard, you can customize In the Choose your project section of the wizard,Ĭomplete all other fields in the next section of the wizard.Studio project, but with an additional step: To create a new project with support for native code, the process is similar to You don't need this component if you only plan to useĭebugger in Android Studio that debugs native code.įor information on installing these components, see Install and configure the NDK and CMake. NDK provides platform libraries that let you manage nativeĪctivities and access physical device components, such as sensors and touchĮxternal build tool that works alongside Gradle to build your native (NDK): a toolset that lets you use C and C++ code withĪndroid. To compile and debug native code for your app, you need the following NdkCompile tool, migrate to using either CMake or Note: If your existing project uses the deprecated Java or Kotlin code using the JNI framework. Once you configure your project, access your native functions from Gradle uses the build script to import source code into yourĪndroid Studio project and package your native library into the app. Gradle by providing a path to your CMake or ndk-build If you have an existing native library that already has aĬMakeLists.txt build script or uses ndk-build and includes. ![]() If you are importing and linking against prebuilt or platform Skip this step if you already have native code or want toīuild your native source code into a library.Create new native source files and add the.If instead you want to add native code to an existing project, Support, and add new C/C++ files to your project. Necessary build tools, create a new project with C/C++ This page shows you how to set up Android Studio with the Link Gradle to your native library project. To import an existing ndk-build library into your Android Studio Ndk-build in the same module is not currently supported. To learn more about using the JNIĪndroid Studio supports CMake, which is useful for cross-platform projects.Īndroid Studio also supports ndk-build, whichĬan be faster than CMake but only supports Android. Your Java or Kotlin code can then call functions in your native library When you build your project, thisĬode is compiled into a native library that Gradle can package with your app. Add C and C++ code to your Android project by placing the code into aĬpp directory in your project module.
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