Alert class

Attract user attention with important static message

Inheritance
Implementers

Constructors

Alert({Key? key, bool visible = true, ValueChanged<bool>? onChanged, AlertTransitionBuilder? transitionBuilder = AlertTransition.crossFade, AlertLayoutBuilder layoutBuilder = AlertLayout.defaults, Widget? title, Widget? message, Widget? icon, Widget? action, AlertVariant? variant, AlertSeverity? severity, EdgeInsetsGeometry? margin, EdgeInsetsGeometry? padding, double? spacing, double? elevation, BorderRadius? borderRadius, double? iconSize, AlertStyle? style, Curve? curve, Duration? duration})
const
Alert.danger({Key? key, bool visible = true, ValueChanged<bool>? onChanged, AlertTransitionBuilder? transitionBuilder = AlertTransition.crossFade, AlertLayoutBuilder layoutBuilder = AlertLayout.defaults, Widget? title, Widget? message, Widget? icon = AlertIcons.danger, Widget? action, AlertVariant? variant, EdgeInsetsGeometry? margin, EdgeInsetsGeometry? padding, double? spacing, double? elevation, BorderRadius? borderRadius, double? iconSize, AlertStyle? style, Curve? curve, Duration? duration})
const
Alert.info({Key? key, bool visible = true, ValueChanged<bool>? onChanged, AlertTransitionBuilder? transitionBuilder = AlertTransition.crossFade, AlertLayoutBuilder layoutBuilder = AlertLayout.defaults, Widget? title, Widget? message, Widget? icon = AlertIcons.info, Widget? action, AlertVariant? variant, EdgeInsetsGeometry? margin, EdgeInsetsGeometry? padding, double? spacing, double? elevation, BorderRadius? borderRadius, double? iconSize, AlertStyle? style, Curve? curve, Duration? duration})
const
Alert.success({Key? key, bool visible = true, ValueChanged<bool>? onChanged, AlertTransitionBuilder? transitionBuilder = AlertTransition.crossFade, AlertLayoutBuilder layoutBuilder = AlertLayout.defaults, Widget? title, Widget? message, Widget? icon = AlertIcons.success, Widget? action, AlertVariant? variant, EdgeInsetsGeometry? margin, EdgeInsetsGeometry? padding, double? spacing, double? elevation, BorderRadius? borderRadius, double? iconSize, AlertStyle? style, Curve? curve, Duration? duration})
const
Alert.warning({Key? key, bool visible = true, ValueChanged<bool>? onChanged, AlertTransitionBuilder? transitionBuilder = AlertTransition.crossFade, AlertLayoutBuilder layoutBuilder = AlertLayout.defaults, Widget? title, Widget? message, Widget? icon = AlertIcons.warning, Widget? action, AlertVariant? variant, EdgeInsetsGeometry? margin, EdgeInsetsGeometry? padding, double? spacing, double? elevation, BorderRadius? borderRadius, double? iconSize, AlertStyle? style, Curve? curve, Duration? duration})
const

Properties

action → Widget?
Widget displayed next to title
final
borderRadius → BorderRadius?
The radii for each corner of the alert's border.
final
curve → Curve?
The curve to apply when animating the parameters of this widget.
final
duration → Duration?
The duration over which to animate the parameters of this widget.
final
effectiveStyle → AlertStyle
no setter
elevation → double?
The alert's z-coordinate relative to the parent at which to place this physical object.
final
hashCode → int
The hash code for this object.
no setterinherited
icon → Widget?
Icon displayed prior to title
final
iconSize → double?
The size of the icon's inside the alert, in logical pixels.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
layoutBuilder → AlertLayoutBuilder
A function that wraps all of the children that are transitioning out, and the child that's transitioning in, with a widget that lays all of them out. This is called every time this widget is built. The function must not return null.
final
margin → EdgeInsetsGeometry?
Empty space to surround the outside alert.
final
message → Widget?
The text to display below the title
final
onChanged → ValueChanged<bool>?
Called when the alert should change between visible and hidden states.
final
padding → EdgeInsetsGeometry?
The padding between the contents of the alert and the outside alert.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
severity → AlertSeverity?
Type of the alert severity
final
spacing → double?
How much space to place between alert's foreground widget in a run in the main axis.
final
style → AlertStyle?
The style to be applied to the alert.
final
title → Widget?
The primary content of the Alert.
final
transitionBuilder → AlertTransitionBuilder?
A function that wraps a new content with an animation that transitions the content in when the animation runs in the forward direction and out when the animation runs in the reverse direction. This is only called when a new content is set (not for each build), or when a new transitionBuilder is set. If a new transitionBuilder is set, then the transition is rebuilt for the current content and all previous children using the new transitionBuilder. The function must not return null.
final
variant → AlertVariant?
Type of the alert variant
final
visible → bool
Whether or not this alert is visible.
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