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lbry-android-sdk/BUILD.md
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Linux Build Instructions

This app has currently only been built on Ubuntu 14.04, 16.04, 17.10, and 18.04, but these instructions, or an analog of them, should work on most Linux or macOS environments. An abridged version of these instructions is available at QUICKSTART.md.

For instructions on how to build using a Docker image, please see DOCKER.md.

Install Prerequisites

Requirements

  • JDK 1.8
  • Android SDK
  • Crystax Android NDK
  • Buildozer
  • Node.js
  • npm
  • yarn

apt Packages

Install all apt packages required by running the following commands:

sudo dpkg --add-architecture i386
sudo apt-get -y update
sudo apt-get install -y curl ca-certificates software-properties-common gpg-agent wget
sudo add-apt-repository ppa:deadsnakes/ppa -y && \
     curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
sudo apt-get -y update && apt-get -y install autoconf autogen automake libtool libffi-dev \
     build-essential python3.7 python3.7-dev python3.7-venv python3-pip ccache git libncurses5:i386 libstdc++6:i386 \
     libgtk2.0-0:i386 libpangox-1.0-0:i386 libpangoxft-1.0-0:i386 libidn11:i386 python2.7 python2.7-dev \
     python-pip openjdk-8-jdk unzip zlib1g-dev zlib1g:i386 m4 libc6-dev-i386 yarn gawk nodejs npm

Alternatively, the JDK available from http://www.oracle.com/technetwork/java/javase/downloads/index.html can be installed instead of the openjdk-8-jdk package.

Install Cython and Setuptools

sudo -H pip install --upgrade cython==0.28.1 setuptools

Install buildozer

A forked version of buildozer needs to be installed in order to copy the React Native UI source files into the corresponding directories.

git clone https://github.com/lbryio/buildozer.git
cd buildozer && python2.7 setup.py install && cd ..

Create buildozer.spec

Assuming lbry-android as the current working folder:

  • Copy buildozer.spec.sample to buildozer.spec in the lbry-android folder. Running buildozer init instead will create a new buildozer.spec file.
  • Update buildozer.spec settings to match your environment. The basic recommended settings are outlined below.
Setting Description
title application title
package.name package name (e.g. browser)
package.domain package domain (e.g. io.lbry)
source.dir the location of the application main.py
version application version
requirements the Python module requirements for building the application
services list of Android background services and their corresponding Python entry points
android.permissions Android manifest permissions required by the application. This should be set to INTERNET at the very least to enable internet connectivity
android.api Android API version (Should be at least 23 for Gradle build support)
android.sdk Android SDK version (Should be at least 23 for Gradle build support)
android.ndk Android NDK version (not required when using crystax Android NDK)
android.ndk_path Android NDK path. This should be set to the crystax Android NDK path)
android.sdk_path Android SDK path. This should be set to the path where the Android SDK is manually set up (if not set up in the .buildozer path).
p4a.source_dir Path to the python-for-android repository folder. Currently set to the included p4a folder
p4a.local_recipes Path to a folder containing python_for_android recipes to be used in the build. The included recipes folder includes recipes for a successful build

Create google-services.json

The google-services.json file is required for the build to be successful due to the Firebase implementation. Simply copy the provided sample file into the same destination folder.

cd lbry-android
cp p4a/pythonforandroid/bootstraps/lbry/build/templates/google-services.sample.json p4a/pythonforandroid/bootstraps/lbry/build/templates/google-services.json

Setup Android SDK for buildozer

Download the Android SDK, platform and build tools archives.

Create the .buildozer path (and the android sub-path) in your home folder if it doesn't already exist. mkdir ~/.buildozer mkdir ~/.buildozer/android

Extract the API 23 SDK to the ~/.buildozer/android path and rename the extracted folder.

tar -xf android-sdk_r23-linux.tgz ~/.buildozer/android/platform/
mv ~/.buildozer/android/platform/android-sdk-linux ~/.buildozer/android/platform/android-sdk-23

Extract the API 28 platform archive into the android-sdk-23 folder and rename the extracted folder.

unzip ~/.buildozer/android/platform/platform-28_r06.zip -d ~/.buildozer/android/platform/android-sdk-23/platforms
mv ~/.buildozer/android/platform/android-sdk-23/platforms/android-9 ~/.buildozer/android/platform/android-sdk-23/platforms/android-2

Extract the build tools 26.0.2 build tools into the android-sdk-23 folder and rename the extracted folder.

mkdir -p ~/.buildozer/android/platform/android-sdk-23/build-tools
unzip ~/.buildozer/android/platform/build-tools_r26.0.2-linux.zip -d ~/.buildozer/android/platform/android-sdk-23/build-tools
mv ~/.buildozer/android/platform/android-sdk-23/build-tools/android-8.1.0 ~/.buildozer/android/platform/android-sdk-23/build-tools/26.0.2

Finally, create the Android SDK license file. This prevents being prompted to accept the SDK license during the build process.

mkdir -p ~/.buildozer/android/platform/android-sdk-23/licenses
echo $'\nd56f5187479451eabf01fb78af6dfcb131a6481e' > ~/.buildozer/android/platform/android-sdk-23/licenses/android-sdk-license

Setup Crystax Android NDK for buildozer

  • Download the Crystax Android NDK from https://us.crystax.net/download/crystax-ndk-10.3.2-linux-x86_64.tar.xz and extract. Remember to update android.ndk_path in your buildozer.spec to the path of the extracted Crystax NDK archive.
  • Copy build-target-python.sh from the scripts folder in the cloned lbry-android repository to the crystax-ndk-10.3.2/build/tools/ folder.
  • Copy mangled-glibc-syscalls.h from the scripts folder in the cloned lbry-android repository to the crystax-ndk-10.3.2/platforms/android-21/arch-arm/usr/include/crystax/bionic/libc/include/sys/ folder.
  • Delete the android-9 folder in crystax-ndk-10.3.2/platforms, and create a symbolic link named android-9 to the android-21 folder.

Build and Deploy

Run npm install -g react-native-cli to install React Native CLI tools.

Initialise git submodules by running git submodule update --init --recursive in the lbry-android folder.

Run npm i in the lbry-android/app folder to install the necessary modules required by the React Native user interface, and then run ./bundle.sh.

Run ./build.sh in lbry-android to build the APK. The output can be found in the bin subdirectory.

To build and deploy, you can run ./deploy.sh. This requires a connected device or a running Android emulator.

Development

If you already installed Android SDK and adb

  • Run adb reverse tcp:8081 tcp:8081
  • Then go to the lbry-android/app folder and run npm start

Note: You need to have your device connected with USB debugging.

Once the bundler is ready, run the LBRY Browser app on your device and then shake the device violently until you see the React Native dev menu. You can enable "Live Reloading" and "Hot Reloading" from this menu, so any changes you make to the React Native code will be visible as you save. This will only reload React Native Javascript files. Native Java code needs to be redeployed by running the command ./deploy.sh

Update LBRY SDK Version

Update the requirements section following files

  • buildozer.spec.arm.ci
  • buildozer.spec.arm64.ci
  • buildozer.spec.sample
  • buildozer.spec.vagrant

Update LBRY_SDK_VERSION in src/main/java/io/lbry/lbrysdk/LbrynetService.java

Update the version in src/main/python/main.py

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