How to compile the native library? 中文 Development Environment MacOS 10.14.4+ XCODE 10.1+ Clone git clone https://github.com/bitshares/bitshares-mobile-app.git Compile secp256k1 for iOS. cd shell chmod a+x build_secp256k1_ios.sh ./build_secp256k1_ios.sh Compile secp256k1 for Android. step A. Install the Android NDK library (Supported version: 13b) https://developer.android.google.cn/ndk/downloads/older_releases.html#ndk-13b-downloads step B. configuring environment variables export ANDROID_NDK_ROOT="Your NDK Install Dir" export PATH=$PATH:$ANDROID_NDK_ROOT step C. Start compiling cd shell chmod a+x build_secp256k1_android.sh ./build_secp256k1_android.sh Compile libfowallet.so and xxx.jar for Android. (requirement: secp256k1) cd shell chmod a+x build_fowallet_so_android.sh ./build_fowallet_so_android.sh