FlexSplitColumn class final
A widget that takes a list of children
and lays them out in a column where
each child has a flexible height.
Each child in children
must have an accompanying header in header
. Since
each header must be a PreferredSizeWidget, it is common to use the shared
widgets AreaPaneHeader or BlankHeader for the column headers.
The user can customize the amount of space allocated to each child by
clicking and dragging the header
s that separate the children.
initialFractions
defines how much space to give each child when building
this widget.
minSizes
defines the minimum size that each child can be set to when
adjusting the sizes of the children.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- FlexSplitColumn
Constructors
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
-
headers
→ List<
PreferredSizeWidget> -
The headers that will be laid out above each corresponding child in
children
.final - key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- totalHeight → double
-
The total height of the column, including all headers and
children
.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
Static Methods
-
buildChildrenWithFirstHeader(
List< Widget> children, List<PreferredSizeWidget> headers) → List<Widget> -
modifyInitialFractionsToIncludeFirstHeader(
List< double> initialFractions, List<PreferredSizeWidget> headers, double totalHeight) → List<double> -
modifyMinSizesToIncludeFirstHeader(
List< double> minSizes, List<PreferredSizeWidget> headers) → List<double>