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30 lines
1.5 KiB
Markdown
30 lines
1.5 KiB
Markdown
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## Scripts for creating an AAR package and a local Maven repository with OpenCV libraries for Android
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### How to run the scripts
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1. Set JAVA_HOME and ANDROID_HOME enviroment variables. For example:
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```
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export JAVA_HOME=~/Android Studio/jbr
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export ANDROID_HOME=~/Android/SDK
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```
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2. Download OpenCV SDK for Android
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3. Run build script for version with Java and a shared C++ library:
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```
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python build_java_shared_aar.py "~/opencv-4.7.0-android-sdk/OpenCV-android-sdk"
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```
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4. Run build script for version with static C++ libraries:
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```
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python build_static_aar.py "~/opencv-4.7.0-android-sdk/OpenCV-android-sdk"
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```
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The AAR libraries and the local Maven repository will be created in the **outputs** directory
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### Technical details
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The scripts consist of 5 steps:
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1. Preparing Android AAR library project template
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2. Adding Java code to the project. Adding C++ public headers for shared version to the project.
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3. Compiling the project to build an AAR package
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4. Adding C++ binary libraries to the AAR package. Adding C++ public headers for static version to the AAR package.
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5. Creating Maven repository with the AAR package
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There are a few minor limitations:
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1. Due to the AAR design the Java + shared C++ AAR package contains duplicates of C++ binary libraries, but the final user's Android application contains only one library instance.
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2. The compile definitions from cmake configs are skipped, but it shouldn't affect the library because the script uses precompiled C++ binaries from SDK.
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