confla-android

Mobile client for conflab

It aims to be easy adoptable as single conference application.

By default it is using https://github.com/rh-lab-q/conflab project

Build notes

Android NDK

When using Qt from Qt Installer (i.e. not compiling it yourself), use NDK r10e. Anything else will give you a hard time because Qt itself is built against this version.

Also newer NDKs have completely replaced GCC with clang and libc++ - mixing libstdc++ Qt and libc++-built binary does not really work. Neither does OpenSSL unless you use OpenSSL 1.1.1, which pre-compiler Qt does not support.

Building OpenSSL for Qt

• Download this script https://wiki.openssl.org/images/7/70/Setenv-android.sh
• Modify the script:
  • _ANDROID_NDK="android-ndk-r10e"
  • _ANDROID_EABI="arm-linux-androidebabi-4.9"
  • _ANDROID_ARCH="arch-arm"
  • _ANDROID_API="android-18"
  • if you get an error on line 201, replace the == with a single =
• Download latest OpenSSL 1.0 (OpenSSL 1.1 will not work with precompiled Qt, may work if you build Qt yourself)
• Build OpenSSL for Android ARM:

  cd openssl-1.0.2p
  export ANDROID_NDK_ROOT=/opt/android/android-ndk-r10e
  . ../Setenv-android.sh
  ./Configure shared android
  make CALC_VERSIONS="SHLIB_COMPAT=; SHLIB_SOVER=" build_libs
  mkdir -p /path/to/android-confla/android/libs/armeabi-v7a
  mv libcrypto.so libssl.so /path/to/android-confla/android/libs/armeabi-v7a/
  make distclean
  

• Modify the script again:
  • _ANDROID_NDK="android-ndk-r10e"
  • _ANDROID_EABI="x86-4.9"
  • _ANDROID_ARCH="arch-x86"
  • _ANDROID_API="android-18"
• Build OpenSSL for Android x64

  cd openssl-1.0.2p
  export ANDROID_NDK_ROOT=/opt/android/android-ndk-r10e
  . ../Setenv-android.sh
  ./Configure shared android-x86
  make CALC_VERSIONS="SHLIB_COMPAT=; SHLIB_SOVER=" build_libs
  mkdir -p /path/to/android-confla/android/libs/x86
  mv libcrypto.so libssl.so /path/to/android-confla/android/libs/x86/
  

That's all, qmake should pick up the libraries automatically if they exist in android/libs/[arch]