InheritedContext class - ext library

Constructors

InheritedContext()

Properties

debugDoingBuild → bool: Whether the widget is currently updating the widget or render tree.
no setterinherited
elDefaultColor → Color: Available on BuildContext, provided by the ElBuildContextExt extension
访问祖先提供的默认颜色
no setter
elPlaceholderTextStyle → TextStyle: Available on BuildContext, provided by the ElBuildContextExt extension

no setter
elRegularTextStyle → TextStyle: Available on BuildContext, provided by the ElBuildContextExt extension

no setter
elSecondaryTextStyle → TextStyle: Available on BuildContext, provided by the ElBuildContextExt extension

no setter
elTextStyle → TextStyle: Available on BuildContext, provided by the ElBuildContextExt extension

no setter
elTheme → ElThemeData: Available on BuildContext, provided by the ElBuildContextExt extension
访问自适应主题，如果当前是暗黑模式，则获取注入的暗黑主题，否则获取注入的亮色主题
no setter
elThemeColors → Map<ElThemeType, Color>: Available on BuildContext, provided by the ElBuildContextExt extension

no setter
hasFocus → bool: Available on BuildContext, provided by the ElEventExt extension
从当前上下文 context 访问最近的 ElEvent 注入的 focus 聚焦状态
no setter
hashCode → int: The hash code for this object.
no setterinherited
hasHover → bool: Available on BuildContext, provided by the ElEventExt extension
从当前上下文 context 访问最近的 ElEvent 注入的 hover 悬停状态
no setter
hasSelected → bool: Available on BuildContext, provided by the ElSelectionExtension extension
小部件是否被选中
no setter
hasTap → bool: Available on BuildContext, provided by the ElEventExt extension
从当前上下文 context 访问最近的 ElEvent 注入的 tap 点击状态
no setter
hasValue → bool: Whether setState was called at least once or not.
no setter
lg → bool: Available on BuildContext, provided by the ElResponsiveExt extension
当前是否处于桌面布局（<=1920）
no setter
md → bool: Available on BuildContext, provided by the ElResponsiveExt extension
当前是否处于平板布局（<=1024）
no setter
mounted → bool: Whether the Widget this context is associated with is currently mounted in the widget tree.
no setterinherited
owner → BuildOwner?: The BuildOwner for this context. The BuildOwner is in charge of managing the rendering pipeline for this context.
no setterinherited
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
size → Size?: The size of the RenderBox returned by findRenderObject.
no setterinherited
sm → bool: Available on BuildContext, provided by the ElResponsiveExt extension
当前是否处于移动端布局（<=640）
no setter
value → T: The current value exposed by InheritedProvider.
no setter
widget → Widget: The current configuration of the Element that is this BuildContext.
no setterinherited
xl → bool: Available on BuildContext, provided by the ElResponsiveExt extension
当前是否处于超大桌面布局（<=2560）
no setter
xs → bool: Available on BuildContext, provided by the ElResponsiveExt extension
当前是否处于极小布局（<=320）
no setter

Methods

dependOnInheritedElement(InheritedElement ancestor, {Object? aspect}) → InheritedWidget: Registers this build context with ancestor such that when ancestor's widget changes this build context is rebuilt.
inherited
dependOnInheritedWidgetOfExactType<T extends InheritedWidget>({Object? aspect}) → T?: Returns the nearest widget of the given type T and creates a dependency on it, or null if no appropriate widget is found.
inherited
describeElement(String name, {DiagnosticsTreeStyle style = DiagnosticsTreeStyle.errorProperty}) → DiagnosticsNode: Returns a description of the Element associated with the current build context.
inherited
describeMissingAncestor({required Type expectedAncestorType}) → List<DiagnosticsNode>: Adds a description of a specific type of widget missing from the current build context's ancestry tree.
inherited
describeOwnershipChain(String name) → DiagnosticsNode: Adds a description of the ownership chain from a specific Element to the error report.
inherited
describeWidget(String name, {DiagnosticsTreeStyle style = DiagnosticsTreeStyle.errorProperty}) → DiagnosticsNode: Returns a description of the Widget associated with the current build context.
inherited
dispatchNotification(Notification notification) → void: Start bubbling this notification at the given build context.
inherited
elBorder({Color? color, double? width}) → Border: Available on BuildContext, provided by the ElBuildContextExt extension
构建默认颜色的边框对象
elPrimaryBorder({Color? color, double? width}) → Border: Available on BuildContext, provided by the ElBuildContextExt extension
构建主题颜色的边框对象
findAncestorRenderObjectOfType<T extends RenderObject>() → T?: Returns the RenderObject object of the nearest ancestor RenderObjectWidget widget that is an instance of the given type T.
inherited
findAncestorStateOfType<T extends State<StatefulWidget>>() → T?: Returns the State object of the nearest ancestor StatefulWidget widget that is an instance of the given type T.
inherited
findAncestorWidgetOfExactType<T extends Widget>() → T?: Returns the nearest ancestor widget of the given type T, which must be the type of a concrete Widget subclass.
inherited
findRenderObject() → RenderObject?: The current RenderObject for the widget. If the widget is a RenderObjectWidget, this is the render object that the widget created for itself. Otherwise, it is the render object of the first descendant RenderObjectWidget.
inherited
findRootAncestorStateOfType<T extends State<StatefulWidget>>() → T?: Returns the State object of the furthest ancestor StatefulWidget widget that is an instance of the given type T.
inherited
getElementForInheritedWidgetOfExactType<T extends InheritedWidget>() → InheritedElement?: Obtains the element corresponding to the nearest widget of the given type T, which must be the type of a concrete InheritedWidget subclass.
inherited
getInheritedWidgetOfExactType<T extends InheritedWidget>() → T?: Returns the nearest widget of the given InheritedWidget subclass T or null if an appropriate ancestor is not found.
inherited
markNeedsNotifyDependents() → void: Marks the InheritedProvider as needing to update dependents.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
read<T>() → T: Available on BuildContext, provided by the ReadContext extension
Obtain a value from the nearest ancestor provider of type T.
select<T, R>(R selector(T value)) → R: Available on BuildContext, provided by the SelectContext extension
Watch a value of type T exposed from a provider, and mark this widget for rebuild on changes of that value.
toString() → String: A string representation of this object.
inherited
visitAncestorElements(ConditionalElementVisitor visitor) → void: Walks the ancestor chain, starting with the parent of this build context's widget, invoking the argument for each ancestor.
inherited
visitChildElements(ElementVisitor visitor) → void: Walks the children of this widget.
inherited
watch<T>() → T: Available on BuildContext, provided by the WatchContext extension
Obtain a value from the nearest ancestor provider of type T or T?, and subscribe to the provider.

Operators

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

InheritedContext<T> class abstract

Constructors

Properties

Methods

Operators

ext library