ResizableSplitterThemeData class Theming

Shared styling and behavior for ResizableSplitter widgets.

Every field is nullable, and an unset field genuinely means "unset": it falls through to the next layer rather than re-asserting a default. The resolution order, lowest precedence first, is the built-in default, the app-wide ThemeData extension, a local ResizableSplitterTheme, then the explicit constructor argument on the widget. Because nothing here carries a default, layering a partial override (for example a local theme that sets only dragBarrierColor) can never clobber a value a broader scope supplied.

Use it in two interchangeable ways:

  • app-wide, via ThemeData(extensions: [ResizableSplitterThemeData(...)]);
  • for a subtree, via ResizableSplitterTheme.
Inheritance
Annotations

Constructors

ResizableSplitterThemeData({SplitterDividerStyle? divider, Color? dragBarrierColor, bool? shieldPlatformViews, bool? enableKeyboard, bool? enableHaptics, double? keyboardStep, double? pageStep, UnboundedBehavior? unboundedBehavior, double? fallbackExtent, bool? snapToPhysicalPixels, SplitterSemanticsLabels? semantics})
Creates theme data. Every field defaults to null, meaning "defer".
const

Properties

divider → SplitterDividerStyle?
Divider appearance and grab configuration.
final
dragBarrierColor → Color?
Optional overlay tint while dragging.
final
enableHaptics → bool?
Whether haptic feedback fires on drag start and keyboard adjustments.
final
enableKeyboard → bool?
Whether keyboard interaction is enabled.
final
fallbackExtent → double?
Fallback extent used when opting into UnboundedBehavior.useFallbackExtent.
final
hashCode → int
The hash code for this object.
no setterinherited
keyboardStep → double?
Ratio delta applied when pressing arrow keys.
final
pageStep → double?
Ratio delta applied when pressing page keys.
final
props → List<Object?>
The list of properties that will be used to determine whether two instances are equal.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
semantics → SplitterSemanticsLabels?
Localizable semantics strings and value formatting for descendant splitters. Null defers to the built-in English defaults.
final
shieldPlatformViews → bool?
Whether the overlay shield is inserted during drags.
final
snapToPhysicalPixels → bool?
Whether to snap the leading panel size to whole physical pixels.
final
stringify → bool?
If set to true, the toString method will be overridden to output this instance's props.
no setterinherited
type → Object
The extension's type.
no setterinherited
unboundedBehavior → UnboundedBehavior?
Strategy when encountering unbounded main-axis constraints.
final

Methods

copyWith({Object? divider = _noUpdate, Object? dragBarrierColor = _noUpdate, Object? shieldPlatformViews = _noUpdate, Object? enableKeyboard = _noUpdate, Object? enableHaptics = _noUpdate, Object? keyboardStep = _noUpdate, Object? pageStep = _noUpdate, Object? unboundedBehavior = _noUpdate, Object? fallbackExtent = _noUpdate, Object? snapToPhysicalPixels = _noUpdate, Object? semantics = _noUpdate}) → ResizableSplitterThemeData
Returns a copy with the provided fields replaced. Returns a copy with the provided fields replaced. Every parameter accepts an explicit null to clear that field (fall back to the next layer); omitting a parameter keeps the current value.
override
lerp(covariant ResizableSplitterThemeData? other, double t) → ResizableSplitterThemeData
Linearly interpolates between two theme data objects.
override
merge(ResizableSplitterThemeData? other) → ResizableSplitterThemeData
Overlays other on top of this data, field by field. A non-null field in other wins; unset fields fall through to this. The nested divider is merged the same way, so a local divider style layers over the base instead of replacing it wholesale.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
override

Operators

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