Build opencv4.0.1 & opencv_contrib for Android on macOS

Related-post:

Build opencv & opencv_contrib for Android on Windows

Start

• Install CMake: https://cmake.org/download/
• Download ndkr16b (OpenCV 4.0.1 this must be Android NDK r16b): https://developer.android.com/ndk/downloads/older_releases
• Open CMake-GUI

• Click Configure

• Point to “/Volumes/Soft/_Program_Files/opencvfull/opencv-4.0.1/platforms/android/android.toolchain.cmake”

• Check and update CMake program if it can not auto detect. The CMake version need to update respective.

CMAKE_MAKE_PROGRAM = /Users/nhancao/Library/Android/sdk/cmake/3.6.4111459/bin/ninja

• Add entry

ANDROID_NDK - PATH = /Volumes/Soft/_Program_Files/opencvfull/android-ndk-r16b
ANDROID_SDK_ROOT - PATH = /Users/nhancao/Library/Android/sdk
ANDROID_NATIVE_API_LEVEL - STRING = 27

• Click Configure
• Update CMAKE_INSTALL_PREFIX = /Volumes/Soft/_Program_Files/opencvfull/opencv-4.0.1/android_build/install
• Update OPENCV_EXTRA_MODULES_PATH = /Volumes/Soft/_Program_Files/opencvfull/opencv_contrib-4.0.1/modules
• Uncheck to disable some config below

* Disable BUILD_ANDROID_PROJECTS
* Disable…