tanthokg / centalki

Centalki

Capstone Project, Software Engineering Major, University of Science, VNU-HCM

Description

This is a cross-platform mobile application, that served as a client of Centalki System. It allows users, specifically students, to practice and improve their English speaking skills through paid video call sessions with experienced teachers.

Features

• Authentication and Authorization features.
• Friendly, modern, and easy-to-learn UI.
• Browse various pre-scripted speaking topics of multiple subjects and categories to find the most suitable one for your sessions.
• Connect with available teachers without booking or pre-scheduling.
• Interact with teachers in 30-minute 1-1 sessions right inside our app through the built-in high-quality video call service.
• View topic's content on the same video call screen.
• Receive feedbacks from teachers to improve yourselves.
• Give feedback and suggestions to teachers in order to improve your future experiences.
• Learn hard vocabularies with flash cards mode.
• Account management features: Change Information, Purchase Additional Sessions, View Session History, Notifications, etc.
• Supporting Vietnamese and Dark UI Mode.

Download links

• Android (Google Play Store): Centalki - Practice Speaking English
• iOS (App Store): Centalki - Practice Speaking English

Demo screenshots

• Sign In, Sign Up, Reset Password.

• Browse various speaking topics of different categories and difficulties.

• View detail information and contents of each topic.

• Connect with available teachers with high flexibility and no pre-scheduling required (payment required).

• Interact with teachers through high-quality video calls, as well as view your topic on the same screen.

• Give feedback to your teachers, or report your problems.

• Give feedbacks to topics, or suggest new ones to help gradually improve our contents.

• Add topics to favorite, and learn vocabularies with Flash Card mode.

• Improve at your own pace with feedbacks from teachers.

• Additional features: rejoin sessions on exit, receive push notifications, etc.

• Manage your accounts, personal information, and buy more sessions.

How to run the project

• Generate SHA-1 for debug

keytool -list -v -keystore ~/.android/debug.keystore -alias androiddebugkey -storepass android -keypass android

• Keystore release

storePassword=123456
keyPassword=123456
keyAlias=upload
storeFile=upload-keystore.jks

• Generate keystore

keytool -genkeypair -v -storetype PKCS12 -keystore release.keystore -alias release -keyalg RSA -keysize 2048 -validity 10000
___pass=123456___

• Convert keystore file to base64

openssl base64 < release.keystore  | tr -d '\n' | tee release.keystore.base64.txt

• Convert mobileprovision file to base64 (Password 123456)

openssl base64 < Ripid_Staging_Profile.mobileprovision | tr -d '\n' | tee profile.base64.txt

• Env file to base64

openssl base64 < .env  | tr -d '\n' | tee .env.base64.txt

• Base64 to

echo $ENV_BASE64 | base64 --decode >> .env.decode

Android Configs

• File key.properties

storePassword=123456
keyPassword=123456
keyAlias=upload
storeFile=upload-keystore.jks

• Build script

flutter build appbundle