ExpenseTrackerDemo

ExpenseTrackerDemo is a demo application for extracting all transaction messages from user's Inbox and plot them onto the screen.

I choose kotlin as primary language for this demo because Kotlin have a lot more features than Java like null safety, extension functions, named parameters etc which enforces code readability and reduced the number of LOC.

Features

Below are some of the features of this demo application.

Ability to fetch all SMS messages from User's device.
Filter out debited and credited messages and plot a chart and list of messages on screen.

Work Flow

First this application checks if user have sufficient permissions or not (SMS permissions). If not than the applications will ask user to grant all permissions otherwise it will load all messages from user's device.
Than those loaded messages are filtered out for finding only transactional messages out of them.
Than we find the amounts from those messages using regular expressions after that those messages are added to different lists based on the condition weather they were credited message or debited message.
After filtering them we pass those lists and total of the debited and credited amount to our Activity so we can plot a Pie chart and list based on the data received.

Setup

This project was built using Android studio v4.0.1 so if any gradle issue comes up than the code is required to be opened with latest version of Android studio i.e 4.0.1 or else the gradle version of project requires to be downgraded first to use on any older version of Android Studio.

Architecture

This app uses MVVM (Model View View-Model) architecture.

Built With