Flutter App: Seafood weight calculator

Daniel Xav De Oliveira
2 min readOct 9, 2019

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I designed and created this app as a solution to a business process carried out by a company known as Marisco Seafoods that buys and exports seafood.

The Problem

As part of the export process, Marisco Seafoods employs someone to capture data , such as the the count of bags and their total weight per species of fish. This was done using a printed excel spread sheet , with the species as columns and the count as rows.

Once all the data had been captured, someone had to manually sum the weights to calculate the total per species.

The Solution

I designed a Flutter app , connected to Googles Firestore to store the data. One page is to be used to enter the Data and the the other to display the total weight and count per species of fish.

Firestore DataBase Structure
Screen used for calculator
Totals , replacing excel spread sheet

The complete project is available at :

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Daniel Xav De Oliveira
Daniel Xav De Oliveira

Written by Daniel Xav De Oliveira

My aim is to document my journey as a Software Developer. Writing as I go along. To enforce new knowledge in my mind and to share with others !

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