CurrencyKeyboardView

Description

A simple and lightweight SwiftUI decimalPad keyboard component for handling currency input seamlessly on watchOS 26+

CurrencyKeyboardView introduces a fully custom numeric keyboard — .decimalPad is not available natively on watchOS

Install

Add the following dependency to your Package.swift:

dependencies: [
    .package(url: "https://github.com/matvdg/CurrencyKeyboardView.git", from: "1.0.0")
]

Localization

To fully support localization of placeholders and toggle labels, add the following keys to your String Catalog (or Localizable.strings) in your project:

"amount" = "Amount";
"overdrawn" = "Overdrawn";

Then import it in your SwiftUI file:

import CurrencyKeyboardView

Usage Example

When signMode is set to .both, a toggle allows switching between positive and negative values.
When you use .positiveOnly or .negativeOnly, the toggle is automatically hidden, and the sign is forced accordingly.

#if os(watchOS)
import SwiftUI
import CurrencyKeyboardView

struct WatchCurrencyView: View {
    @State private var amount: Double?

    var body: some View {
        NavigationStack {
            CurrencyKeyboardView(amount: $amount)
        }
    }
}
#endif

You can also hide the currency symbol inside the decimal pad if needed using the optional parameter displayCurrency:

CurrencyKeyboardView(value: $amount, signMode: .both, displayCurrency: false)

This approach gives you a full numeric keyboard experience on watchOS, which does not exist natively.

Key Features

• ✅ Smart currency formatting with optional minus sign and dynamic color (red, primary, or green)
• ✅ Supports multiple currency symbols ($, €, …)
• ✅ Automatically inserts thousands separators (X XXX XXX.XX)
• ✅ Prevents leading zeros (e.g. 00 → 0, 06 → 6, 0.6 → 0.6)
• ✅ Adds a zero before a starting decimal point (.6 → 0.6)
• ✅ Converts "." to the appropriate decimal separator according to Locale
• ✅ Limits decimals to two digits (e.g. 0.999 → 0.99)
• ✅ Includes a toggle to switch between positive and negative values when signMode = .both

Feedbacks / feature request / bug

Feel free to create an issue on GitHub or contact me: matvdg@me.com