MainStream<T> class

A StreamBuilder alternative that provides builder and event callbacks including default visual handlers

Inheritance

Constructors

MainStream({Key key, @required Stream<T> stream, ValueChanged<T> onData, ValueChanged<T> onEmptyData, ValueChanged<Object> onError, VoidCallback onDone, T initialData, WidgetBuilder busyBuilder, Widget dataBuilder(BuildContext, T), Widget emptyDataBuilder(BuildContext, T), Widget errorBuilder(BuildContext, Object)})
const

Properties

busyBuilder WidgetBuilder
final
dataBuilder Widget Function(BuildContext, T)
final
emptyDataBuilder Widget Function(BuildContext, T)
final
errorBuilder Widget Function(BuildContext, Object)
final
hashCode int
The hash code for this object.
@nonVirtual, read-only, inherited
initialData → T
final
key Key
Controls how one widget replaces another widget in the tree.
final, inherited
onData ValueChanged<T>
final
onDone VoidCallback
final
onEmptyData ValueChanged<T>
final
onError ValueChanged<Object>
final
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
stream Stream<T>
The asynchronous computation to which this builder is currently connected, possibly null. When changed, the current summary is updated using afterDisconnected, if the previous stream was not null, followed by afterConnected, if the new stream is not null.
final, inherited

Methods

afterConnected(AsyncSnapshot<T> current) AsyncSnapshot<T>
Returns an updated version of the current summary reflecting that we are now connected to a stream.
override
afterData(AsyncSnapshot<T> current, T data) AsyncSnapshot<T>
Returns an updated version of the current summary following a data event.
override
afterDisconnected(AsyncSnapshot<T> current) AsyncSnapshot<T>
Returns an updated version of the current summary reflecting that we are no longer connected to a stream.
override
afterDone(AsyncSnapshot<T> current) AsyncSnapshot<T>
Returns an updated version of the current summary following stream termination.
override
afterError(AsyncSnapshot<T> current, Object error) AsyncSnapshot<T>
Returns an updated version of the current summary following an error with a stack trace.
override
build(BuildContext context, AsyncSnapshot<T> snapshot) Widget
Returns a Widget based on the currentSummary.
override
createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() State<StreamBuilderBase<T, AsyncSnapshot<T>>>
Creates the mutable state for this widget at a given location in the tree.
inherited
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
@protected, inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
initial() AsyncSnapshot<T>
Returns the initial summary of stream interaction, typically representing the fact that no interaction has happened at all.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent 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.
@nonVirtual, inherited