LensPicker class

Lens picker mirroring yolo-ios-app/Sources/YOLO/YOLOView.swift#setupLensControl.

Visual tokens:

  • background: UIColor.black.withAlphaComponent(0.38) (line 647)
  • selected thumb: UIColor.white.withAlphaComponent(0.18) (line 648)
  • normal label: 13pt semibold white (lines 651–653)
  • selected label: 13pt bold systemYellow (lines 654–658)

Labels render 0.5, 1, 2, 4 (sub-1× lenses get one decimal). The chip whose zoom factor is closest to currentZoomFactor is selected, so a pinch-zoom past a lens threshold visually snaps the picker.

Inheritance

Constructors

LensPicker({Key? key, required List<LensInfo> lenses, required double currentZoomFactor, required ValueChanged<LensInfo> onLensSelected, Widget? trailing})
const

Properties

currentZoomFactor → double
Current effective zoom factor; drives selection.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
lenses → List<LensInfo>
Lenses the active camera exposes (back lens cluster on iOS, focal-length enumeration on Android).
final
onLensSelected → ValueChanged<LensInfo>
Invoked when the user taps a lens chip.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
trailing → Widget?
Optional control rendered immediately to the right of the lens pill (e.g. a torch toggle), sharing the same centered row so it sits directly next to the zoom options.
final

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String
A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String
Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a one-line detailed description of the object.
inherited
toStringShort() → String
A short, textual description of this widget.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited