https://github.com/robertying/androidcurlexample

Minimal Android example for using `libopenssl` and `libcurl` with `NDK` and `JNI`
https://github.com/robertying/androidcurlexample

android curl jni libcurl libssl ndk openssl

Last synced: 7 days ago
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Minimal Android example for using `libopenssl` and `libcurl` with `NDK` and `JNI`

• Host: GitHub
• URL: https://github.com/robertying/androidcurlexample
• Owner: robertying
• License: mit
• Archived: true
• Created: 2020-02-01T15:27:00.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2021-09-05T05:27:55.000Z (over 3 years ago)
• Last Synced: 2024-10-02T06:41:47.193Z (4 months ago)
• Topics: android, curl, jni, libcurl, libssl, ndk, openssl
• Language: Java
• Size: 54.6 MB
• Stars: 27
• Watchers: 3
• Forks: 5
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Android Curl Example

Minimal Android example for using `libopenssl` and `libcurl` with `NDK` and `JNI`.

Pay special attention to the directory **`app/src/main/cpp`** where most of the work resides.

## Mechanism

- Use Android NDK to compile C functions together with cross-compiled `libcurl` and `libopenssl` libs.

- Use JNI to connect C functions to Java functions.

- Load NDK compiled shared lib in Android app.

- Call Java functions which call C functions eventually and can use all the stuff `curl` and `openssl` provide.

## Compile openssl and curl for Android

See this repo: [openssl-curl-android](https://github.com/robertying/openssl-curl-android) for how to cross-compile those two libs.

For simplicity, I just copied the whole build directory from [openssl-curl-android](https://github.com/robertying/openssl-curl-android) to `app/src/main/cpp/libs`. You may find better ways to place pre-compiled libs or just build them on the fly.

## **Note**

I have removed actual built libs from Git. Remember to copy precompiled ones to `app/src/main/cpp/libs` to make the app build.