FlexibleResizablePaneController class

Controller for resizable panes with flexible (proportional) sizing.

Manages a panel whose size is specified as a flex factor relative to the total available space. Similar to Flutter's Flexible widget concept.

Example:

final controller = FlexibleResizablePaneController(1.0);

ResizablePane(
  controller: controller,
  child: Container(color: Colors.red),
)
Inheritance
Mixed-in types

Constructors

FlexibleResizablePaneController(double _flex, {bool collapsed = false})
Creates a FlexibleResizablePaneController.

Properties

collapsed → bool
Whether the panel is currently collapsed.
no setteroverride
flex ← double
no getter
hashCode → int
The hash code for this object.
no setterinherited
hasListeners → bool
Whether any listeners are currently registered.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
value → double
The current value of the object. When the value changes, the callbacks registered with addListener will be invoked.
no setteroverride

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
collapse() → void
Collapses the panel to its minimum size.
override
computeSize(double paneSize, {double? minSize, double? maxSize}) → double
Computes the actual size based on paneSize and optional constraints.
override
dispose() → void
Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).
inherited
expand() → void
Expands the panel to its maximum or default size.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners() → void
Call all the registered listeners.
inherited
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
resize(double newSize, double paneSize, {double? minSize, double? maxSize}) → void
Resizes the controller to the given newSize within the paneSize bounds.
override
toString() → String
A string representation of this object.
inherited
tryCollapse([PanelSibling direction = PanelSibling.both]) → bool
Attempts to collapse the panel in the specified direction.
inherited
tryExpand([PanelSibling direction = PanelSibling.both]) → bool
Attempts to expand the panel in the specified direction.
inherited
tryExpandSize(double size, [PanelSibling direction = PanelSibling.both]) → bool
Attempts to expand by size pixels in the specified direction.
inherited

Operators

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