This content originally appeared on flaviocopes.com and was authored by flaviocopes.com
The Slider form control in SwiftUI lets us create a bar that the user can swipe left or right to decrease or increase its value.
We initialize a Slider by setting 3 parameters: value, in, step:
@State private var age: Double = 0
//...
Slider(value: $age, in: 0...100, step: 1)in limits the minimum and maximum values we can use.
step means we can step by a value of 1 at a time, in this case we can go from 0 to 1 to 2 etc. You could use 10, or 0.2, and so on.
Since Slider takes a Double value, by default we increment the decimals too.
Example:
struct ContentView: View {
@State private var age: Double = 0
var body: some View {
Form {
Slider(value: $age, in: 0...100, step: 1)
Text("\(age)")
}
}
}
Notice how I added a Text view to show the value of age.
Since it’s a double, we have lots of decimals.
We could format that, but for this we’ll have another post.
This content originally appeared on flaviocopes.com and was authored by flaviocopes.com
flaviocopes.com | Sciencx (2021-09-28T05:00:00+00:00) SwiftUI forms: Slider. Retrieved from https://www.scien.cx/2021/09/28/swiftui-forms-slider/
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