The sample exchange rates app
Requirements
- Xcode 10
- swiftlint (optional). Details in
Scripts/lint.sh
Assumptions and dependencies
-
Precision and rounding are limited to the
Doubletype. For better accuracyDecimalnumber must be used. This can be adjusted in theExchangeRate.Rate -
Supported currencies: The application can handle a subset of the ISO 4217 currencies supported by the current locale. Other currencies can be added to the
CurrencyFactory. Due to the API limitations, only part of the supported currencies is displayed on the UI. This is controlled byUserPreferences.availableCurrencies
Project structure
All app source files are split into a few main parts:
Core- generic code that can be reused in other appsApp- code that specific to the app domain and used app-wide- Other folders - code related to the concrete part of the app