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Calculator, unit converter and timer in one app, written in Kotlin

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bbor98/three-in-one

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Three In One

UPDATE: This is my first Android project that I posted on GitHub, so its architecture is not good and has a bunch of spaghetti code. Check out Three In One Compose MVVM for the rewritten version of this project, which is built with the modern UI toolkit Jetpack Compose, and implements the MVVM design pattern.

Calculator, unit converter and timer in one app, written in Kotlin.

Calculator

The calculator contains:

  • Basic calculator
  • Scientific calculator

Unit Converter

A unit converter to convert units:

  • Angle
  • Area
  • Currency
  • Data
  • Energy
  • Force
  • Length
  • Power
  • Pressure
  • Speed
  • Temperature
  • Time
  • Volume
  • Weight

Kotlin Coroutines used with Free Currency Converter API to retrieve the currency exchange rates data

Timer

The timer contains:

  • Stopwatch
  • Countdown timer
  • Counter

Stopwatch

Countdown Timer

Counter

License

Copyright (c) 2021 Bora Bor

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.