Initializer

init(value:in:label:minimumValueLabel:maximumValueLabel:onEditingChanged:)

Creates a slider to select a value from a given range, which displays the provided labels.

Declaration 宣言 

init<V>(value: Binding<V>, in bounds: ClosedRange<V> = 0...1, label: () -> Label, minimumValueLabel: () -> ValueLabel, maximumValueLabel: () -> ValueLabel, onEditingChanged: @escaping (Bool) -> Void = { _ in }) where V : BinaryFloatingPoint, V.Stride : BinaryFloatingPoint
Available when Label conforms to View and ValueLabel conforms to View.

Parameters パラメータ

value

The selected value within bounds.

bounds

The range of the valid values. Defaults to 0...1.

label

A View that describes the purpose of the instance. Not all slider styles show the label, but even in those cases, SwiftUI uses the label for accessibility. For example, VoiceOver uses the label to identify the purpose of the slider.

minimumValueLabel

A view that describes bounds.lowerBound.

maximumValueLabel

A view that describes bounds.lowerBound.

onEditingChanged

A callback for when editing begins and ends.

Discussion 議論

The value of the created instance is equal to the position of the given value within bounds, mapped into 0...1.

The slider calls onEditingChanged when editing begins and ends. For example, on iOS, editing begins when the user starts to drag the thumb along the slider’s track.

See Also 参照

Creating a Slider With Labels

init<V>(value: Binding<V>, in: ClosedRange<V>, label: () -> Label, onEditingChanged: (Bool) -> Void)
Creates a slider to select a value from a given range, which displays the provided label.
Available when Label conforms to View and ValueLabel is EmptyView.
init<V>(value: Binding<V>, in: ClosedRange<V>, step: V.Stride, label: () -> Label, onEditingChanged: (Bool) -> Void)
Creates a slider to select a value from a given range, subject to a step increment, which displays the provided label.
Available when Label conforms to View and ValueLabel is EmptyView.
init<V>(value: Binding<V>, in: ClosedRange<V>, step: V.Stride, label: () -> Label, minimumValueLabel: () -> ValueLabel, maximumValueLabel: () -> ValueLabel, onEditingChanged: (Bool) -> Void)
Creates a slider to select a value from a given range, subject to a step increment, which displays the provided labels.
Available when Label conforms to View and ValueLabel conforms to View.