Introduction
The PNCurrency library is a powerful tool for handling currency conversions and calculations in iOS apps. With an easy-to-use interface, it provides developers with the functionality to convert and perform mathematical operations with various currencies. Whether you need to display currency information, make calculations, or fetch exchange rates, the PNCurrency library has got you covered.
Features
- Supports conversion between different currencies
- Fetches the latest exchange rates from reliable sources
- Handles mathematical operations with currencies
- Formatted currency display for easy user readability
- Supports custom exchange rate providers for flexibility
Installation
To get started with the PNCurrency library, follow the steps below:
- Open your Xcode project
- Navigate to your project’s Build Phases
- In the Link Binary With Libraries section, click the + button
- Search for PNCurrency.framework and add it to your project
- Import the PNCurrency module into your source code by adding the following line:
import PNCurrency
Usage
Currency Conversion
To convert currencies using the PNCurrency library, follow the steps below:
- Create an instance of the
CurrencyConverter
class - Specify the base currency and the target currency using their respective ISO codes
- Call the
convert(amount:)
method, passing the amount to be converted - Receive the converted amount as the return value
Example:
// Create a currency converter instance
let converter = CurrencyConverter()
// Convert 50 USD to EUR
let result = converter.convert(amount: 50, from: "USD", to: "EUR")
print(result) // Output: 43.19 EUR
Fetching Exchange Rates
To fetch the latest exchange rates using the PNCurrency library, follow the steps below:
- Create an instance of the
ExchangeRateFetcher
class - Specify the base currency using its ISO code
- Call the
fetchExchangeRates(completion:)
method, passing a completion block to handle the retrieved rates
Example:
// Create an exchange rate fetcher instance
let rateFetcher = ExchangeRateFetcher()
// Fetch exchange rates for USD
rateFetcher.fetchExchangeRates { (rates) in
if let exchangeRates = rates {
// Handle the retrieved exchange rates
// Display or process the exchange rate data
} else {
print("Failed to fetch exchange rates.")
}
}
Mathematical Operations
The PNCurrency library also provides functions for performing mathematical operations with currencies:
- Addition: Use the
add(_:)
function to add two currency values - Subtraction: Use the
subtract(_:)
function to subtract one currency value from another - Multiplication: Use the
multiply(by:)
function to multiply a currency value by a constant factor - Division: Use the
divide(by:)
function to divide a currency value by a constant divisor
Example:
// Perform mathematical operations with currencies
let currencyA = PNCurrency("USD", value: 50)
let currencyB = PNCurrency("EUR", value: 30)
// Addition
let sum = currencyA.add(currencyB)
// Subtraction
let difference = currencyA.subtract(currencyB)
// Multiplication
let multiplied = currencyA.multiply(by: 2.5)
// Division
let divided = currencyB.divide(by: 2)
print(sum) // Output: 80 USD
print(difference) // Output: 20 USD
print(multiplied) // Output: 125 USD
print(divided) // Output: 15 EUR
Customization
If you need to customize the behavior of the PNCurrency library, you can implement a custom exchange rate provider by conforming to the ExchangeRateProvider
protocol. This allows you to integrate your own API for fetching exchange rates or use another third-party service. Simply create a class or struct that conforms to the protocol and implement the required methods.
Conclusion
The PNCurrency library provides a reliable and easy-to-use solution for currency conversions, calculations, and fetching exchange rates in iOS apps. Whether you are working on a financial app, e-commerce platform, or any other application requiring currency operations, the PNCurrency library offers the necessary functionality to handle various currency-related tasks efficiently.