DataStreamWithValueBuilder<T extends Object> class

Inheritance

Constructors

DataStreamWithValueBuilder({required StreamWithValue<T?> streamWithValue, required DataBuilder<T> builder, DataTrigger<T?>? onData, NullValueBuilder? nullValueBuilder, void onError(dynamic e, StackTrace stackTrace)?, Key? key})

Properties

builder → DataBuilder<T>
Builds a child widget. Never gets null as a value.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
nullValueBuilder → NullValueBuilder?
Builds a child widget when data is null (for nullable T). If unset, updates with null values are ignored.
final
onData → DataTrigger<T?>?
Called for every change to the data. May be called with null if T is a nullable type.
final
onError → (void Function(dynamic e, StackTrace stackTrace)?)
Called when errors happen with the Stream
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
streamWithValue → StreamWithValue<T?>
Source StreamWithValue. We accept a nullable type here to be able to filter out nulls without requiring the user to pass nullable type as T and then using exclamation mark operator in the builder body.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _DataStreamWithValueBuilderState<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