Magnifier class

A Material styled magnifying glass.

This magnifying glass is useful for scenarios on mobile devices where the user's finger may be covering part of the screen where a granular action is being performed, such as navigating a small cursor with a drag gesture, on an image or text.

This widget focuses on mimicking the style of the magnifier on material. For a widget that is focused on mimicking the behavior of a material magnifier, see TextMagnifier.

Inheritance

Constructors

Magnifier({Key? key, Offset additionalFocalPointOffset = Offset.zero, BorderRadius borderRadius = const BorderRadius.all(Radius.circular(_borderRadius)), Color filmColor = const Color.fromARGB(8, 158, 158, 158), List<BoxShadow> shadows = const <BoxShadow>[BoxShadow(blurRadius: 1.5, offset: Offset(0, 2), spreadRadius: 0.75, color: Color.fromARGB(25, 0, 0, 0))], Size size = Magnifier.kDefaultMagnifierSize})
Creates a RawMagnifier in the Material style.
const

Properties

additionalFocalPointOffset → Offset
Any additional offset the focal point requires to "point" to the correct place.
final
borderRadius → BorderRadius
The border radius for this magnifier.
final
filmColor → Color
The color to tint the image in this Magnifier.
final
hashCode → int
The hash code for this object.
read-onlyinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited
shadows → List<BoxShadow>
The shadows for this Magnifier.
final
size → Size
The Size of this Magnifier.
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}) → 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

Constants

kDefaultMagnifierSize → const Size
The default size of this Magnifier.
Size(77.37, 37.9)
kStandardVerticalFocalPointShift → const double
The vertical distance that the magnifier should be above the focal point.
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