**The Eclipse ADT plugin is no longer supported** . We recommend[migrating to Android Studio](https://developer.android.com/studio/intro/migrate)to compile, build, and package your app's native sources using[ndk-build](https://developer.android.com/ndk/guides/ndk-build)or[CMake](https://cmake.org/). Compatibility with ndk-build makes it easy to migrate your native projects from Eclipse to Android Studio. To learn more about native development with the official IDE for Android, read[Add C and C++ Code to Your Project](https://developer.android.com/studio/projects/add-native-code).

## Installation

To install and configure the NDK, follow these steps:

1. Get and install the[Android SDK command line tools](https://developer.android.com/studio#downloads).
2. [Download the NDK](https://developer.android.com/ndk/downloads), making sure to download the correct version for your development platform. You may place the unzipped directory anywhere on your local drive.
3. Update your`PATH`environment variable with the location of the directory that contains the NDK.

## Configuring Eclipse

Eclipse must know where the NDK is in order to use it when building your app. Follow these steps to set the location of the NDK.

1. Launch Eclipse, which is installed as part of the Android SDK.
2. Open**Window** \>**Preferences**.
3. In the pane on the left side of the*Preferences* window, select*Android* . The*Android*section expands, revealing a number of subsections.
4. Select**NDK** . In the pane on the right side of the*Preferences*window, browse to the directory that contains the NDK.
5. Click**OK** to return to the*Package Explorer*display.

## Verification

### Eclipse

To confirm that you have installed the NDK, set it up correctly, and properly configured Eclipse, follow these steps:

1. Import the hello-jni sample from`<ndk>/samples/`, as you would any other Android project.
2. In the*Project Explorer* pane, right-click the project name (*HelloJni*). A context menu appears.
3. From the context menu, select**Android Tools** \>**Add Native Support** . The*Add Android Native Support*window appears.
4. Accept the default library name ("hello-jni"), and click**Finish**.
5. Build and execute the application.

### Command line

Follow these steps to build from the command line:

1. Change to the root directory of your project.
2. Execute ndk-build to build the native component of your app. do this by typing`ndk-build`at the command prompt.
3. Build and install your project as you would a regular Android app written in Java. For more information, see[Configure Your Build](https://developer.android.com/studio/build)and[Run Gradle from the Command Line](https://developer.android.com/studio/build/building-cmdline).

If you have successfully installed and configured the NDK, the screen on your target device looks as shown in Figure 1.
![Output: Hello from JNI!](https://developer.android.com/ndk/guides/images/verification_screen.png)

**Figure 1.**Target-device screen after successful launch.