reusables
library
Classes
Accumulator
Mutable wrapper of an integer that can be passed by reference to track a
value across a recursive stack.
Alignment
A point within a rectangle.
AlignmentDirectional
An offset that's expressed as a fraction of a Size , but whose horizontal
component is dependent on the writing direction.
AlignmentGeometry
Base class for Alignment that allows for text-direction aware
resolution.
AnimatedFlipCounter
AssetBundleImageKey
Key for the image obtained by an AssetImage or ExactAssetImage .
AssetBundleImageProvider
A subclass of ImageProvider that knows about AssetBundle s.
AssetImage
Fetches an image from an AssetBundle , having determined the exact image to
use based on the context.
AsyncButton <T >
AsyncButtonState <T >
AsyncToggleWidget <T >
AsyncToggleWidgetState <T >
AutomaticNotchedShape
A NotchedShape created from ShapeBorder s.
BaseStandardToastStyle
Base abstract class for built-in styles
BeveledRectangleBorder
A rectangular border with flattened or "beveled" corners.
Bone
A widget that represents a bone of the loading skeleton effect
BoneMock
A class that provides mock data for generating fake
BoneRenderObject
The render object of the BoneRenderObjectWidget
BoneRenderObjectWidget
A widget that paints a BoxDecoration into a canvas with ManualSkeletonizerPaintingContext.
Border
A border of a box, comprised of four sides: top, right, bottom, left.
BorderDirectional
A border of a box, comprised of four sides, the lateral sides of which
flip over based on the reading direction.
BorderRadius
An immutable set of radii for each corner of a rectangle.
BorderRadiusDirectional
An immutable set of radii for each corner of a rectangle, but with the
corners specified in a manner dependent on the writing direction.
BorderRadiusGeometry
Base class for BorderRadius that allows for text-direction aware resolution.
BorderSide
A side of a border of a box.
BoxBorder
Base class for box borders that can paint as rectangles, circles, or rounded
rectangles.
BoxDecoration
An immutable description of how to paint a box.
BoxPainter
A stateful class that can paint a particular Decoration .
BoxShadow
A shadow cast by a box.
BuiltInToastBuilder
Canvas
An interface for recording graphical operations.
CircleBorder
A border that fits a circle within the available space.
CircularNotchedRectangle
A rectangle with a smooth circular notch.
ClipContext
Clip utilities used by PaintingContext .
Color
An immutable color value in ARGB format.
ColorFilter
A description of a color filter to apply when drawing a shape or compositing
a layer with a particular Paint . A color filter is a function that takes
two colors, and outputs one color. When applied during compositing, it is
independently applied to each pixel of the layer being drawn before the
entire layer is merged with the destination.
ColorProperty
DiagnosticsProperty that has an Color as value.
ColorSwatch <T >
A color that has a small table of related colors called a "swatch".
ColorUtils
Utility class for color manipulation and conversion operations.
ContinuousRectangleBorder
A rectangular border with smooth continuous transitions between the straight
sides and the rounded corners.
DashedPainter
DashedPainter is a custom painter that draws a dashed line around the
child widget. The strokeWidth property defines the width of the dashed
border and color determines the stroke paint color. CircularIntervalList
is populated with the dashPattern to render the appropriate pattern. The
radius property is taken into account only if the borderType is
BorderType.RRect . A customPath can be passed in as a parameter if you
want to draw a custom shaped border.
Decoration
A description of a box decoration (a decoration applied to a Rect ).
DecorationImage
An image for a box decoration.
DecorationImagePainter
The painter for a DecorationImage .
DefaultStandardToastWidget
DefaultStyleValues
DefaultToastificationTransition
This class is responsible for creating the default animation for the toastification
DottedBorder
Add a dotted border around any child widget. The strokeWidth property
defines the width of the dashed border and color determines the stroke
paint color. CircularIntervalList is populated with the dashPattern to
render the appropriate pattern. The radius property is taken into account
only if the borderType is BorderType.RRect . A customPath can be passed in
as a parameter if you want to draw a custom shaped border.
EdgeInsets
An immutable set of offsets in each of the four cardinal directions.
EdgeInsetsDirectional
An immutable set of offsets in each of the four cardinal directions, but
whose horizontal components are dependent on the writing direction.
EdgeInsetsGeometry
Base class for EdgeInsets that allows for text-direction aware
resolution.
ExactAssetImage
Fetches an image from an AssetBundle , associating it with the given scale.
FileImage
Decodes the given File object as an image, associating it with the given
scale.
FilledStandardToastStyle
FittedSizes
The pair of sizes returned by applyBoxFit .
FlatStandardColoredToastStyle
FlatStandardToastStyle
FlutterLogoDecoration
An immutable description of how to paint Flutter's logo.
FontFeature
A feature tag and value that affect the selection of glyphs in a font.
FontVariation
An axis tag and value that can be used to customize variable fonts.
FontWeight
The thickness of the glyphs used to draw the text.
FractionalOffset
An offset that's expressed as a fraction of a Size .
GlyphInfo
The measurements of a character (or a sequence of visually connected
characters) within a paragraph.
Gradient
A 2D gradient.
GradientRotation
A GradientTransform that rotates the gradient around the center-point of
its bounding box.
GradientTransform
Base class for transforming gradient shaders without applying the same
transform to the entire canvas.
HSLColor
A color represented using alpha , hue , saturation , and lightness .
HSVColor
A color represented using alpha , hue , saturation , and value .
ImageCache
Class for caching images.
ImageCacheStatus
Information about how the ImageCache is tracking an image.
ImageChunkEvent
An immutable notification of image bytes that have been incrementally loaded.
ImageConfiguration
Configuration information passed to the ImageProvider.resolve method to
select a specific image.
ImageInfo
A dart:ui.Image object with its corresponding scale.
ImageProvider <T extends Object >
Identifies an image without committing to the precise final asset. This
allows a set of images to be identified and for the precise image to later
be resolved based on the environment, e.g. the device pixel ratio.
ImageShader
A shader (as used by Paint.shader ) that tiles an image.
ImageSizeInfo
Tracks the bytes used by a dart:ui.Image compared to the bytes needed to
paint that image without scaling it.
ImageStream
A handle to an image resource.
ImageStreamCompleter
Base class for those that manage the loading of dart:ui.Image objects for
ImageStream s.
ImageStreamCompleterHandle
An opaque handle that keeps an ImageStreamCompleter alive even if it has
lost its last listener.
ImageStreamListener
Interface for receiving notifications about the loading of an image.
InlineSpan
An immutable span of inline content which forms part of a paragraph.
InlineSpanSemanticsInformation
The textual and semantic label information for an InlineSpan .
LabelWidget
LinearBorder
An OutlinedBorder like BoxBorder that allows one to define a rectangular (box) border
in terms of zero to four LinearBorderEdge s, each of which is rendered as a single line.
LinearBorderEdge
Defines the relative size and alignment of one LinearBorder edge.
LinearGradient
A 2D linear gradient.
LineMetrics
LineMetrics stores the measurements and statistics of a single line in the
paragraph.
Locale
An identifier used to select a user's language and formatting preferences.
MaskFilter
A mask filter to apply to shapes as they are painted. A mask filter is a
function that takes a bitmap of color pixels, and returns another bitmap of
color pixels.
MatrixUtils
Utility functions for working with matrices.
MemoryImage
Decodes the given Uint8List buffer as an image, associating it with the
given scale.
MinimalStandardToastStyle
MinimalStandardToastWidget
MultiFrameImageStreamCompleter
Manages the decoding and scheduling of image frames.
NetworkImage
Fetches the given URL from the network, associating it with the given scale.
NotchedShape
A shape with a notch in its outline.
Offset
An immutable 2D floating-point offset.
OneFrameImageStreamCompleter
Manages the loading of dart:ui.Image objects for static ImageStream s (those
with only one frame).
OutlinedBorder
A ShapeBorder that draws an outline with the width and color specified
by side .
OvalBorder
A border that fits an elliptical shape.
Paint
A description of the style to use when drawing on a Canvas .
PaintingEffect
An abstraction for skeleton painting effects
consumed by the Skeletonizer.animationController
Path
A complex, one-dimensional subset of a plane.
PlaceholderDimensions
Holds the Size and baseline required to represent the dimensions of
a placeholder in text.
PlaceholderSpan
An immutable placeholder that is embedded inline within text.
PrimaryButton
PrimaryButtonState
PulseEffect
Creates a painting effect where a two colors are lerped
back nad forward based on animation value
RadialGradient
A 2D radial gradient.
Radius
A radius for either circular or elliptical shapes.
Rect
An immutable, 2D, axis-aligned, floating-point rectangle whose coordinates
are relative to a given origin.
RenderIgnoredSkeleton
A Render object that paints nothing when skeletonizer is enabled
ResizeImage
Instructs Flutter to decode the image at the specified dimensions
instead of at its native size.
ResizeImageKey
Key used internally by ResizeImage .
RoundedRectangleBorder
A rectangular border with rounded corners.
RoundedSuperellipseBorder
A rectangular border with rounded corners following the shape of an
RSuperellipse .
RRect
An immutable rounded rectangle with the custom radii for all four corners.
RSTransform
A transform consisting of a translation, a rotation, and a uniform scale.
RSuperellipse
An immutable rounded superellipse.
Shader
Base class for objects such as Gradient and ImageShader which
correspond to shaders as used by Paint.shader .
ShaderWarmUp
Interface for drawing an image to warm up Skia shader compilations.
Shadow
A single shadow.
ShapeBorder
Base class for shape outlines.
ShapeDecoration
An immutable description of how to paint an arbitrary shape.
ShimmerEffect
Builds a painting effect where a linear gradient
is used to create a shimmer-like effect
SimpleStandardToastStyle
SimpleStandardToastWidget
Size
Holds a 2D floating-point size.
Skeleton
An interface for a skeleton annotation widget
skeleton annotation widgets are used to configure or customize how
the skeleton effect is applied to the child widget
Skeletonizer
Paints a skeleton of the child widget
SkeletonizerConfig
Provided the scoped SkeletonizerConfigData to descended widgets
SkeletonizerConfigData
The immutable configuration data for the skeletonizer theme.
SkeletonizerScope
Provides the skeletonizer activation information
to the descent widgets
SkeletonizerState
The state of Skeletonizer widget
SliverSkeletonizer
A Skeletonizer widget that can be used in a CustomScrollView
SoldColorEffect
Creates a none-animated painting effect
StadiumBorder
A border that fits a stadium-shaped border (a box with semicircles on the ends)
within the rectangle of the widget it is applied to.
StandardStyleValues
StandardToastStyleFactory
StandardToastWidget
StandardToastWidgetFactory
StarBorder
A border that fits a star or polygon-shaped border within the rectangle of
the widget it is applied to.
StrutStyle
Defines the strut, which sets the minimum height a line can be
relative to the baseline.
SweepGradient
A 2D sweep gradient.
SwitchAnimationConfig
Holds the configuration for the switch animation
TextAlignVertical
The vertical alignment of text within an input box.
TextBoneBorderRadius
Holds border radius information
for TextElement
TextBox
A rectangle enclosing a run of text.
TextDecoration
A linear decoration to draw near the text.
TextHeightBehavior
Defines how to apply TextStyle.height over and under text.
TextPainter
An object that paints a TextSpan tree into a Canvas .
TextPosition
A position in a string of text.
A range of characters in a string of text.
TextScaler
A class that describes how textual contents should be scaled for better
readability.
TextSelection
A range of text that represents a selection.
TextSpan
An immutable span of text.
TextStyle
An immutable style describing how to format and paint text.
ToastCloseButton
Configuration class for toast close button customization.
ToastContent
Creates the toastification content - title, description, progress bar
Toastification
This is the main class of the package.
You can use this class to show and manage your notifications.
ToastificationCallbacks
A set of callbacks that you can provide to a Toastification widget.
Used to listen for various events in the lifecycle of the Toastification .
All of the callbacks are optional.
ToastificationConfig
you can use ToastificationConfig class to change default values of Toastification
ToastificationConfigProvider
This class is responsible for providing the ToastificationConfig to the
widget tree
ToastificationItem
class to define the toastification item
this class is the base model for the toastification item
ToastificationTheme
An inherited widget that defines the configuration for
toastification themes in this widget's subtree.
ToastificationThemeData
A class that defines the theming data for Toastification widgets.
ToastificationType
Defines the visual and behavioral characteristics of built-in toast notifications.
This class is used by the BuiltInBuilder to style and render different types
of notifications with consistent appearance.
ToastificationWrapper
A wrapper widget that allows the show method to work without context.
You can also provides Toastification configurations to its descendants.
ToastTimerAnimationBuilder
Using this class you can create your own animation for the timer of the toastification
TransformProperty
Property which handles Matrix4 that represent transforms.
WordBoundary
A TextBoundary subclass for locating word breaks.
Functions
applyBoxFit (BoxFit fit , Size inputSize , Size outputSize → FittedSizes
Apply a BoxFit value.
axisDirectionIsReversed (AxisDirection axisDirection → bool
Returns whether traveling along the given axis direction visits coordinates
along that axis in numerically decreasing order.
axisDirectionToAxis (AxisDirection axisDirection → Axis
Returns the Axis that contains the given AxisDirection .
combineSemanticsInfo (List <InlineSpanSemanticsInformation infoList → List <InlineSpanSemanticsInformation
Combines _semanticsInfo entries where permissible.
debugAssertAllPaintingVarsUnset (String reason , {bool debugDisableShadowsOverride = false → bool
Returns true if none of the painting library debug variables have been changed.
debugDescribeTransform (Matrix4 ?transform → List <String
Returns a list of strings representing the given transform in a format
useful for TransformProperty .
debugFlushLastFrameImageSizeInfo ()
→ void
Flushes inter-frame tracking of image size information from paintImage .
decodeImageFromList (Uint8List bytes → Future <Image
Creates an image from a list of bytes.
defaultAnimationBuilderConfig (BuildContext context , Animation <double animation , Alignment alignment , Widget child → Widget
Default animation builder for Toastification
defaultMarginBuilder (BuildContext context , AlignmentGeometry alignment → EdgeInsetsGeometry
Default margin builder for Toastification
flipAxis (Axis direction → Axis
Returns the opposite of the given Axis .
flipAxisDirection (AxisDirection axisDirection → AxisDirection
Returns the opposite of the given AxisDirection .
lerpFontVariations (List <FontVariation ?a , List <FontVariation ?b , double t → List <FontVariation ?
Interpolate between two lists of FontVariation objects.
paintBorder (Canvas canvas , Rect rect , {BorderSide top = BorderSide.none , BorderSide right = BorderSide.none , BorderSide bottom = BorderSide.none , BorderSide left = BorderSide.none → void
Paints a border around the given rectangle on the canvas.
paintImage ({required Canvas canvas , required Rect rect , required Image image , String ?debugImageLabel , double scale = 1.0 , double opacity = 1.0 , ColorFilter ?colorFilter , BoxFit ?fit , Alignment alignment = Alignment.center , Rect ?centerSlice , ImageRepeat repeat = ImageRepeat.noRepeat , bool flipHorizontally = false , bool invertColors = false , FilterQuality filterQuality = FilterQuality.medium , bool isAntiAlias = false , BlendMode blendMode = BlendMode.srcOver → void
Paints an image into the given rectangle on the canvas.
paintZigZag (Canvas canvas , Paint paint , Offset start , Offset end , int zigs , double width → void
Draw a line between two points, which cuts diagonally back and forth across
the line that connects the two points.
positionDependentBox ({required Size size , required Size childSize , required Offset target , required bool preferBelow , double verticalOffset = 0.0 , double margin = 10.0 → Offset
Position a child box within a container box, either above or below a target
point.
textDirectionToAxisDirection (TextDirection textDirection → AxisDirection
Returns the AxisDirection in which reading occurs in the given TextDirection .
Typedefs
CloseButtonBuilder
= Widget Function(BuildContext context , VoidCallback onClose
Signature for a function that builds a custom close button widget.
DecoderBufferCallback
= Future <Codec Function(ImmutableBuffer buffer , {bool allowUpscaling , int ?cacheHeight , int ?cacheWidth
Performs the decode process for use in ImageProvider.loadBuffer .
HttpClientProvider
= HttpClient Function()
Signature for a method that returns an HttpClient .
ImageChunkListener
= void Function(ImageChunkEvent event
Signature for listening to ImageChunkEvent events.
ImageDecoderCallback
= Future <Codec Function(ImmutableBuffer buffer , {TargetImageSizeCallback ?getTargetSize
Performs the decode process for use in ImageProvider.loadImage .
ImageErrorListener
= void Function(Object exception , StackTrace ?stackTrace
Signature for reporting errors when resolving images.
ImageListener
= void Function(ImageInfo image , bool synchronousCall
Signature for callbacks reporting that an image is available.
InlineSpanVisitor
= bool Function(InlineSpan span
Called on each span as InlineSpan.visitChildren walks the InlineSpan tree.
Painter
= void Function(PaintingContext context , Offset offset
/ A signature for a function that paints with a PaintingContext .
PaintImageCallback
= void Function(ImageSizeInfo info
Called when the framework is about to paint an Image to a Canvas with an
ImageSizeInfo that contains the decoded size of the image as well as its
output size.
PathBuilder
= Path Function(Size
ShaderWarmUpImageCallback
= bool Function(Image image
The signature of debugCaptureShaderWarmUpImage .
ShaderWarmUpPictureCallback
= bool Function(Picture picture
The signature of debugCaptureShaderWarmUpPicture .
SkeletonizerPainter
= void Function(SkeletonizerPaintingContext context , Rect paintBounds , Painter paint , TextDirection ?textDirection
A signature for a function that paints with a SkeletonizerPaintingContext.
ToastificationAnimationBuilder
= Widget Function(BuildContext context , Animation <double animation , Alignment alignment , Widget child
type definition for the animation builder of the custom toastification
use this builder to create your own toastification animation
ToastificationBuilder
= Widget Function(BuildContext context , ToastificationItem holder
type definition for the builder of the custom toastification
use this builder to create your own toastification widget
ToastificationMarginBuilder
= EdgeInsetsGeometry Function(BuildContext context , AlignmentGeometry alignment
VoidCallback
= void Function()
Signature of callbacks that have no arguments and return no data.
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