Aurum · Converter
Aurum · Converter is a production-ready Web3 Flutter screen from FlutterKit Pro, installable with flutterkit add web3-coin-converter.
Aurum · Converter is a focused crypto-to-fiat calculator screen. The dark Binance-style layout stacks two large rounded input cards: a top BTC field (showing "1", outlined in brand yellow as the active field) and a bottom USD field reading "64120.42", each capped with a pill-shaped unit tag. A 42px yellow circular swap button with a vertical swap_vert icon sits centered on the hairline seam between them. Below are four preset pills — 0.5, 1, 2, 5 BTC — and a surface card showing "1 BTC = $64,120.42" with a green "Live" label and chart icon. The build is pure Flutter and backend-agnostic: two TextEditingControllers drive the linked fields, editing either recomputes the other from a passed-in rate (crypto×rate, fiat÷rate), and an _editingCrypto flag plus the swap toggle pick the source side. Inputs use numberWithOptions(decimal) with a [0-9.] FilteringTextInputFormatter, tabular-figure numerals and a custom thousands-grouping formatter. ticker, rate and onBack are constructor params; bundled Inter font, forced dark theme and no network images keep it drop-in.
Reveal the one-line command to drop this screen into your project.
Licensed for unlimited commercial projects · resale prohibited · License
What's included
- ✓Two linked TextField cards (crypto + fiat) that recompute each other from the injected rate via TextEditingControllers
- ✓Central 42px yellow circular swap toggle (Icons.swap_vert_rounded) that flips which field is the editable source
- ✓Active-field highlighting: the focused card gets a brand-yellow border, the other a hairline border
- ✓Four quick-amount preset pills (0.5 / 1 / 2 / 5 BTC) that set both fields in one tap via _setPreset
- ✓Live-rate summary card with chart icon, custom thousands-grouping formatter and a green Live badge
- ✓Configurable ticker, rate and onBack params; bundled Inter font, tabular figures, decimal-only input filtering
Use cases
- ✓Crypto wallet app letting users size a buy or sell in BTC or USD before confirming
- ✓Exchange onboarding flow where newcomers eyeball how much fiat a coin amount is worth
- ✓Portfolio tracker quick-tool for converting a holding to its dollar value on the fly
- ✓DeFi or payments app needing an embeddable token-to-fiat amount calculator
