Monday, November 7, 2016

OpenCV for Android Integration with NDK in Studio 2.2+

Starting with Android Studio 2.2+, NDK integration has become much easier. Thanks a lot, Google!

In the previous post, I showed you how to import OpenCV Android Tutorial 2 sample app into Android Studio and build with NDK integration, which admittedly was quite complicated. I am happy to present much easier method here in terms of NDK integration, starting from Android Studio 2.2.

The only difference from the past post lies in the App module's build.gradle file. The new file should resemble this:
apply plugin: ''

android {
    compileSdkVersion 22
    buildToolsVersion "24.0.3"

    defaultConfig {
        applicationId "org.opencv.samples.tutorial2"
        minSdkVersion 8
        targetSdkVersion 22

        ndk {

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'

    externalNativeBuild {
        ndkBuild {
            path 'src/main/jni/'


dependencies {
    compile project(':openCVLibrary310')

That's it! This will now let Android Studio successfully load C/C++ source files in the src/main/jni directory with valid syntax correction, etc.

No comments:

Post a Comment