FadeModalBarrier class

A modal barrier that fades in/out with an animated opacity.

When visible, it covers the entire parent area and optionally dismisses on tap. Uses AnimationMixin to animate the opacity transition.

FadeModalBarrier(
  visible: _showBarrier,
  color: Colors.black,
  opacity: 0.6,
  duration: Duration(milliseconds: 300),
  onDismiss: () => setState(() => _showBarrier = false),
  child: myContent,
)
Inheritance

Constructors

FadeModalBarrier({required Widget child, bool visible = false, Color? color, double opacity = 0.6, Duration duration = const Duration(milliseconds: 300), CmdCallback? onDismiss, bool dismissible = true, Key? key})

Properties

child → Widget
The content behind the barrier.
final
children → List<Widget>
Child widgets that receive forwarded messages.
no setterinherited
color → Color?
The barrier color. Defaults to the theme background color.
final
debugRenderObjectPassthrough → bool
Whether this widget is intentionally transparent to render-object layouts.
no setterinherited
dismissible → bool
Whether the barrier can be dismissed by tapping.
final
duration → Duration
Duration of the fade animation.
final
focusable → bool
Whether this widget can receive keyboard focus.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
id → String
Unique identifier for this widget.
no setterinherited
key → Key?
Key for preserving widget identity.
finalinherited
onDismiss → CmdCallback?
Callback when the barrier is tapped (for dismissal).
final
opacity → double
Maximum opacity of the barrier when fully visible.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
theme → Theme
Access the current theme.
no setterinherited
visible → bool
Whether the barrier is visible.
final

Methods

buildCachedView<T>(T builder(), Object? cacheKey) → T
Returns a cached view if the cache key matches.
inherited
createState() → State<FadeModalBarrier>
Creates the mutable State associated with this widget.
override
handleInit() → Cmd?
Override this instead of init for widget-specific initialization.
inherited
handleIntercept(Msg msg) → (Widget, Cmd?)
Override this to handle messages before they reach children.
inherited
handleUpdate(Msg msg) → (Widget, Cmd?)
Override this to handle messages specific to this widget.
inherited
init() → Cmd?
Called once when the widget is first mounted.
inherited
invalidateCachedView() → void
Clears any cached view for this widget.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited
update(Msg msg) → (Model, Cmd?)
Handles messages by forwarding to children then calling handleUpdate.
inherited
view() → Object
Renders the widget to a string or View.
inherited

Operators

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