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SOLVED: Question: the format to allow TextField instead of Picker

Forums > 100 Days of SwiftUI

@boat  

Hello

In the WeSplit project,

Paul demonstrated how to use segmented with Pickers. I understand this is smart and easy https://www.hackingwithswift.com/books/ios-swiftui/adding-a-segmented-control-for-tip-percentages

Section {
    Picker("Tip percentage", selection: $tipPercentage) {
        ForEach(tipPercentages, id: \.self) {
            Text($0, format: .percent)
        }
    }
    .pickerStyle(.segmented)
}

However , an array of tip percentages have limited users' options when it comes to tipping.

If I still want to use TextField for tips, is there a value: xxx, format: .xxxxx method for me to input any tip percent or even Int/Double value for tips ?

Thanks

Boat

2      

Check out the TextField docs. There you will find several initializers that do exactly what you are looking for in the Creating a Text Field with a Value section. You can use formats such as .currency, .number, and .percent to achieve the desired outcome.

3      

@boat  

Thank you @roosterboy, reading it now !

Have a nice weekend.

Boat

2      

@boat  

It seems this way it could work:


struct ContentView: View {

    @State  private var numberOfPeople = 1
    @State  private var bill = 0
    @State  private var tipPercent: Double

    var body: some View {
        NavigationView {
        Form{
            Section{

         TextField ("How much tip do you like to leave ?", value:self.$tipPercent, formatter: NumberFormatter())
                Section {
                    Text("\(tipPercent)")
                }
                }}}
               }

 struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()

Except the Preview Section is telling me :

1, 'ContentView' initializer is inaccessible due to 'private' protection level

2, Missing argument for parameter 'tipPercent' in call

2      

As the error message indicates, you need to provide an initial value for tipPercent

2      

@boat  

Thank you @roosterboy. It works now !

Can I say that, by providing tipPercent an initial value, I effectively initialized it ?

Boat..

2      

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