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Medium Session: 100 Days of SwitUI - We Split
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// | |
// ContentView.swift | |
// WeSplit | |
// | |
// Created by Fauzi Achmad Bangsa Diria on 14/06/20. | |
// Copyright © 2020 nooglersoon. All rights reserved. | |
// | |
import SwiftUI | |
struct ContentView: View { | |
@State private var checkAmount = "" | |
@State private var numberOfPeople = "" | |
@State private var tipPercentage = 4 | |
var totalPerPerson: Double { | |
let peopleCount = Double(numberOfPeople) ?? 0 | |
let peopleCounts = peopleCount | |
let tipSelection = Double(tipPercentages[tipPercentage]) | |
let orderAmount = Double(checkAmount) ?? 0 | |
let tipValue = orderAmount / 100 * tipSelection | |
let grandTotal = orderAmount + tipValue | |
let amountPerPerson = grandTotal / peopleCounts | |
if peopleCounts == 0 { | |
return Double(0) | |
}else{ | |
return amountPerPerson | |
} | |
} | |
var totalAmount: Double { | |
let peopleCount = Double(numberOfPeople) ?? 0 | |
let peopleCounts = peopleCount | |
return totalPerPerson * peopleCounts | |
} | |
let tipPercentages = [10, 15, 20, 25, 0] | |
var body: some View { | |
NavigationView { | |
Form { | |
Section { | |
TextField("Amount", text: $checkAmount) | |
.keyboardType(.decimalPad) | |
TextField("Number of People (2 by default) ", text: $numberOfPeople) | |
.keyboardType(.decimalPad) | |
} | |
Section(header: Text("How much tip do you want to leave?")) { | |
Picker("Tip percentage", selection: $tipPercentage) { | |
ForEach(0 ..< tipPercentages.count) { | |
Text("\(self.tipPercentages[$0])%") | |
} | |
} .pickerStyle(SegmentedPickerStyle()) | |
} | |
Section(header: Text("The total amount is")) { | |
Text("$\(totalAmount, specifier: "%.2f")") | |
} | |
Section(header: Text("Amount Per Person")) { | |
Text("$\(totalPerPerson, specifier: "%.2f")") | |
} | |
} .navigationBarTitle("WeSplit") | |
} | |
} | |
} | |
struct ContentView_Previews: PreviewProvider { | |
static var previews: some View { | |
ContentView() | |
//.environment(\.colorScheme, .dark) | |
} | |
} |
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