Ear Training App

This app was crafted using React Native by Michail Selvesakis & Gerasimos Harizanis as a project for 'Educational Innovation and Application Development', a component of Democritus University of Thrace's curriculum.

App Features

• Home Screen
• Interactive Interval Theory lessons (Ascending - Descending Intervals)
• Intuitive Musical Examples for each Interval
• Multiple Quizzes (3 Different difficulty levels)
• Score Tab to see User's Performance

Build Instructions (Linux Enviroment)

To build this app locally you need to follow theese steps: (This example is for Debian-based Systems. Logged-in as root user)

1. Install Dependencies:

apt install nodejs>=14.0.0 npm default-jre default-jdk android-sdk sdkmanager

2. Setup Enviroment Variables: (check if the Android SDK is actually installed there)

export ANDROID_HOME="/lib/android-sdk/"

3. Accept liscenses: (If the Build fails you may need to run it again)

cd /lib/android-sdk/
yes | sdkmanager --licenses

4. Install Node dependencies & EAS, Expo:

cd EarTrainingApp-main/
npm install
npm install --global eas-cli expo

5. Login to EAS using your Expo account:

eas login

6. Build APK

eas build -p android --profile preview --local

If the Build succeded the APK will be placed inside the project folder.

Troubleshooting

If the Build fails, check the following errors-solutions:

• SDK location not found. Define a valid SDK location with an ANDROID_HOME environment variable
  Make sure the Enviromental Variable is set correctly. You can check with echo $ANDROID_HOME

• Failed to install the following Android SDK packages as some licences have not been accepted.
  Re-Do the 3rd Step

• Failing to initialize git:
  Run

git rev-parse --git-dir

and then

git config --global --add safe.directory /home/michael/.local/share/Trash/files/EarTrainingApp-main

(Change the path according to the command's Output)