Created
March 30, 2023 19:10
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SwiftUI decimal (Double) formatter as-if in a calculator.
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| import Foundation | |
| import SwiftUI | |
| struct Calculator: View { | |
| func fmtDouble(dbl: Double) -> String? { | |
| let formatter = NumberFormatter() | |
| formatter.numberStyle = .currencyAccounting | |
| formatter.minimumFractionDigits = 3 | |
| formatter.formatWidth = 70 | |
| return formatter.string(from: dbl as NSNumber) | |
| } | |
| /* | |
| let formatter = NumberFormatter() | |
| formatter.numberStyle = .decimal | |
| formatter.maximumFractionDigits = 2 | |
| let number = NSNumber(value: value) | |
| let formattedValue = formatter.string(from: number)! | |
| */ | |
| var body: some View { | |
| VStack(alignment: .trailing) { | |
| Image(systemName: "globe") | |
| .imageScale(.large) | |
| .foregroundColor(.accentColor) | |
| Text("Calculator") | |
| Divider() | |
| Text(fmtDouble(dbl: 12.34)!) | |
| Text(fmtDouble(dbl: Double(-3451.789))!) | |
| Text(Double(-3451.789).debugDescription) | |
| } | |
| .padding() | |
| .fixedSize(horizontal: true, vertical: true) | |
| } | |
| } | |
| struct Calculator_Previews: PreviewProvider { | |
| static var previews: some View { | |
| Calculator() | |
| } | |
| } |
Author
mobibob
commented
Mar 30, 2023
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