TreeViewState<T> class
The state for the TreeView widget.
This class manages the state of the tree view, including node selection, expansion, filtering, and sorting.
Constructors
Properties
- context → BuildContext
-
The location in the tree where this widget builds.
no setterinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- mounted → bool
-
Whether this State object is currently in a tree.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
-
widget
→ TreeView<
T> -
The current configuration.
no setterinherited
Methods
-
activate(
) → void -
Called when this object is reinserted into the tree after having been
removed via deactivate.
inherited
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
override
-
collapseAll(
) → void - Collapses all nodes in the tree.
-
deactivate(
) → void -
Called when this object is removed from the tree.
inherited
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
didChangeDependencies(
) → void -
Called when a dependency of this State object changes.
inherited
-
didUpdateWidget(
covariant TreeView< T> oldWidget) → void -
Called whenever the widget configuration changes.
inherited
-
dispose(
) → void -
Called when this object is removed from the tree permanently.
override
-
expandAll(
) → void - Expands all nodes in the tree.
-
filter(
bool filterFunction(TreeNode< T> )) → void - Filters the tree nodes based on the provided filter function.
-
getSelectedNodes(
) → List< TreeNode< T> > - Returns a list of all selected nodes in the tree.
-
getSelectedValues(
) → List< T?> - Returns a list of all selected values in the tree.
-
initState(
) → void -
Called when this object is inserted into the tree.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
reassemble(
) → void -
Called whenever the application is reassembled during debugging, for
example during hot reload.
inherited
-
setSelectAll(
bool isSelected) → void - Sets the selection state of all nodes.
-
setState(
VoidCallback fn) → void -
Notify the framework that the internal state of this object has changed.
inherited
-
sort(
int compareFunction(TreeNode< T> , TreeNode<T> )?) → void - Sorts the tree nodes based on the provided compare function.
-
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
-
toStringShort(
) → String -
A brief description of this object, usually just the runtimeType and the
hashCode.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited