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@ -10,40 +10,40 @@ Another Android Monero Wallet
### Disclaimer
This is my first serious Android App.
### Notes
- Monerujo means "Monero Wallet" according to https://www.reddit.com/r/Monero/comments/3exy7t/esperanto_corner/
- Special thanks to /u/gkruja for inspiration to pick this project up again
- Based off monero v0.10.3.1 with pull requests #2238 & #2239 applied => so can be used in mainnet!
### Random Notes
- Based off monero v0.10.3.1 with pull requests #2238, #2239 and #2289 applied => so can be used in mainnet!
- currently only android32
- sorry for my messups in github
- currently only use is checking incoming/outgoing transactions
- works in testnet & mainnet (please use your own daemons)
- takes forever to sync on mainnet (even with own daemon)
- takes forever to sync on mainnet (even with own daemon) - due to 32-bit architecture
- use your own daemon - it's easy
- screen stays on until first sync is complete
- saves wallet only on first sync
- Monerujo means "Monero Wallet" according to https://www.reddit.com/r/Monero/comments/3exy7t/esperanto_corner/
### TODO
- make it pretty
- adjust layout so we can use bigger font sizes
- provide detailed build instructions for third party binaries
- visibility of methods/classes
- adjust layout so we can use bigger font sizes (maybe show only 5 decimal places instead of 12 in main view)
- review visibility of methods/classes
- sensible error dialogs (e.g. when no write permissions granted) instead of just crashing on purpose
- ~~sensible loading/saving progress bars instead of just freezing up~~
- spend monero - not so difficult with wallet api
- check licenses of included libraries; License Dialog
- ~~provide detailed build instructions for third party binaries~~
- ~~sensible loading/saving progress bars instead of just freezing up~~
- ~~figure out how to make it all flow better (loading/saving takes forever and does not run in background)~~
- ~~currently loading in background thread produces segfaults in JNI~~
- check licenses of included libraries
- License Dialog
### Issues
- screen rotation crashes the app
- turning the display off/on during sync stops sync
- ~~screen rotation crashes the app~~
- ~~turning the display off/on during sync stops sync~~
### HOW TO BUILD
No need to build. Binaries are included:
- openssl-1.0.2l
- monero-v0.10.3.1 + pull requests #2238 & #2239
- monero-v0.10.3.1 + pull requests #2238, #2239 and #2289
- boost_1_64_0
If you want to build - fire up Android Studio and build. Also you can rebuild all of the above.
If you want to build them yourself (recommended) check out [the instructions](doc/BUILDING-external-libs.md)
Then, fire up Android Studio and build the APK.

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# BUILDING external libs
Based on https://forum.getmonero.org/5/support/87643/building-monero-v0-10-3-1-for-android and the internet.
Do not follow this blindly. These instructions are for 32-bit only. 64-bit building mostly involves
replacing "32" with "64".
## Prepare Ubuntu environment
```
sudo apt-install build-essential cmake tofrodos
sudo mkdir /opt/android
sudo chown $LOGNAME /opt/android
```
## Install Android NDK
```
cd /opt/android
wget https://dl.google.com/android/repository/android-ndk-r15c-linux-x86_64.zip
unzip android-ndk-r15c-linux-x86_64.zip
android-ndk-r15c/build/tools/make_standalone_toolchain.py --api 21 --stl=libc++ --arch arm --install-dir /opt/android/tool32
```
## Build OpenSSL
Best is to compile openssl from sources. Copying from your phone or elsewhere (don't!) ends up in misery.
### Setup environment
```
cd /opt/android
wget https://wiki.openssl.org/images/7/70/Setenv-android.sh
fromdos Setenv-android.sh
```
Edit Setenv-android.sh:
```
_ANDROID_EABI="arm-linux-androideabi-4.9"
_ANDROID_API="android-21"
```
Then:
```
export ANDROID_NDK_ROOT=/opt/android/android-ndk-r15c
. ./Setenv-android.sh
```
and ignore error about FIPS_SIG.
### Download and build OpenSSL
```
wget https://github.com/openssl/openssl/archive/OpenSSL_1_0_2l.tar.gz
tar xfz OpenSSL_1_0_2l.tar.gz
cd openssl-OpenSSL_1_0_2l/
perl -pi -e 's/install: all install_docs install_sw/install: install_docs install_sw/g' Makefile.org
./config shared no-ssl2 no-ssl3 no-comp no-hw no-engine --openssldir=/opt/android/openssl/android-21/
make depend
# Make sure we don't get versioned .so which Android can't deal with
make CALC_VERSIONS="SHLIB_COMPAT=; SHLIB_SOVER=" MAKE="make -e" all
mkdir -p /opt/android/openssl/android-21/lib
echo "place-holder make target for avoiding symlinks" >> /opt/android/openssl/android-21/lib/link-shared
make SHLIB_EXT=.so install_sw
```
### Make symlinks
```
cd /opt/android/tool32/sysroot/usr/include
ln -s ../../../../openssl/android-21/include/openssl
cd /opt/android/tool32/sysroot/usr/lib
ln -s ../../../../openssl/android-21/lib/libssl.so
ln -s ../../../../openssl/android-21/lib/libcrypto.so
```
## Build Boost
```
cd /opt/android
https://sourceforge.net/projects/boost/files/boost/1.64.0/boost_1_64_0.tar.gz/download -O boost_1_64_0.tar.gz
tar xfz boost_1_64_0.tar.gz
(cd boost_1_64_0; ./bootstrap.sh)
```
The NDK r15c above gives errors about fsetpos and fgetpos not found(!?!), so we "just" comment them out in the include file:
`nano /opt/android/tool32/include/c++/4.9.x/cstdio` (`//using ::fgetpos`, `//using ::fsetpos`)
Then:
```
export PATH=/opt/android/tool32/arm-linux-androideabi/bin:/opt/android/tool32/bin:$PATH
./b2 --build-type=minimal link=static runtime-link=static --with-chrono --with-date_time --with-filesystem --with-program_options --with-regex --with-serialization --with-system --with-thread --build-dir=android32 --stagedir=android32 toolset=clang threading=multi threadapi=pthread target-os=android stage
```
## And finally: Build Monero
```
cd /opt/android
git clone https://github.com/monero-project/monero
cd monero
# <patch monero code as needed>
mkdir -p build/release.android32
cd build/release.android32
# only if not set already set
export PATH=/opt/android/tool32/arm-linux-androideabi/bin:/opt/android/tool32/bin:$PATH
CC=clang CXX=clang++ cmake -D BUILD_TESTS=OFF -D ARCH="armv7-a" -D STATIC=ON -D BUILD_64=OFF -D CMAKE_BUILD_TYPE=release -D ANDROID=true -D BUILD_TAG="android" -D BOOST_ROOT=/opt/android/boost_1_64_0 -D BOOST_LIBRARYDIR=/opt/android/boost_1_64_0/android32/lib -D OPENSSL_ROOT_DIR=/opt/android/openssl/android-21 -D CMAKE_POSITION_INDEPENDENT_CODE:BOOL=true ../..
make
find . -name '*.a' -exec cp '{}' lib \;
```
Ignore the warning from the last command - all static libraries are now in `lib`.
# Bringing it all together
- Copy all .a libraries into the appropriate `external-libs` folders.
- Copy `/opt/android/monero/src/wallet/wallet2_api.h` into `external-libs/monero/include`