For an example to copy, see the sample NDK program hello-jni. If you do not set ndk.abifilters, Studio will compile to all available Android cpu architectures. You can control which cpu architectures to target via the ndk.abifilters variable in the app/adle script. Android Studio automatically invokes the NDK compilers for you. The full Android Studio IDE which includes the basic SDK ToolsĪndroid Studio v1.3 has preliminary support for NDK, but it is incompletely documented and the details are likely to change.A stand-alone copy of the basic SDK Tools.There are no MIPS-specific steps to take when installing the NDK itself.īefore using the NDK, you must also install some version of the Android SDK toolsets: The NDK includes native-language cross-compilers for all Android cpu architectures, including MIPS and MIPS64. The Android NDK can be installed as its own separate download from Google or Android Studio will download it for you at your first use. The following instructions assume that you are already familiar with using the SDK Tools and NDK and IDEs to build and run native ARM apps. The NDK is not designed for use on its own.įor general NDK information common to all cpu targets, see Google’s top Android NDK page. The NDK works with the basic stand-alone “SDK Tools”, and also with the Android Studio IDE or with the older Eclipse ADT IDE. The fundamental Android application model does not change. The whole app runs inside a Java virtual machine on the Android device. Most or all of your native source code will be target independent. A separate native library is included for each cpu architecture you target. The compiled native library gets embedded within your application’s. Those native parts are structured as a library that you call from your Java code. To make sure that the latest version of the lib will be used, mark the HelloNDK project in Eclipse’s project explorer and hit F5.The Android NDK (Native Development Kit) is a companion toolset to the Android SDK that lets you implement parts of your app using native-compiled languages such as C or C instead of Java. One last note: if you are just working on the C code, Eclipse will not realize that the native lib has been updated. If you now run the HelloNDK Activity, you should see no exceptions. In the HelloNDK project directory you now should find libs/armeabi/libhellondk.so created. Thus, always find it with the Windows Explorer and execute it by double-clicking. ?SHPATH% -login -c "cd %PROJECTDIR%
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