StatefulDataView<T> class

A widget to display StatefulData according to its state.

StatefulDataView listens provided statefulData instance and updates the UI according to the data state.

When the data is ready, the builder function is used to display data view.

To display accompanying states, optional emptyView, errorBuilder, initialLoadingView, initialLoadingErrorView and loadingView parameters could be passed.

You can set common data state views for all StatefulDataView widgets by placing StatefulDataDefaultViews widget somewhere upper in the widget tree.

If some of those values are missed, then default views will be used for corresponding states.

See also:

• StatefulData
• StatefulDataState
• StatefulDataError
• StatefulDataDefaultViews

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatefulWidget
• StatefulDataView

Constructors

StatefulDataView({Key? key, required StatefulData<T> statefulData, required Widget builder(BuildContext context, T data), Widget? emptyView, Widget errorBuilder(BuildContext context, T? data, StatefulDataError? error)?, Widget? initialLoadingView, Widget? initialLoadingErrorView, Widget? loadingView})

Creates StatefulDataView widget.

const

Properties

builder → Widget Function(BuildContext context, T data)

A function to build a widget that represent a provided data instance.

final

emptyView → Widget?

A widget to display in case of empty data.

final

errorBuilder → (Widget Function(BuildContext context, T? data, StatefulDataError? error)?)

A function that build a widget in case of error.

final

hashCode → int

The hash code for this object.

no setter, inherited

initialLoadingErrorView → Widget?

A widget to display in case of initial data loading failed.

final

initialLoadingView → Widget?

A widget to display during initial data loading.

final

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

loadingView → Widget?

A widget to display during data loading.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

statefulData → StatefulData<T>

An instance of StatefulData of specified type.

final

Methods

createElement() → StatefulElement

Creates a StatefulElement to manage this widget's location in the tree.

inherited

createState() → _StatefulDataViewState<T>

Creates the mutable state for this widget at a given location in the tree.

override

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