Loader class

A widget that displays a loading indicator with a fade transition to a page.

The Loader widget shows a loading indicator (either an icon, image, or circular progress indicator) and transitions to the provided page with a fade effect when the value changes.

Inheritance

Constructors

Loader({Key? key, required ValueListenable<bool> value, required Widget page, Color? color, int milliseconds = 500, Curve curve = Curves.easeInOut, IconData? icon, double? iconSize, String? imagePath, double? imageSize})
Creates a Loader widget.
const

Properties

color → Color?
The color of the loading indicator.
final
curve → Curve
The curve of the fade transition animation.
final
hashCode → int
The hash code for this object.
no setterinherited
icon → IconData?
The icon to display as the loading indicator.
final
iconSize → double?
The size of the icon.
final
imagePath → String?
The path to the image to display as the loading indicator.
final
imageSize → double?
The size of the image.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
milliseconds → int
The duration of the fade transition in milliseconds.
final
page → Widget
The page to display after the loading indicator.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
value → ValueListenable<bool>
A ValueListenable that controls the visibility of the loading indicator.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<Loader>
Creates the mutable state for this widget at a given location in the tree.
override
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