PagedStateChangeListener class

Provides hooks for state changes on a given PagedDataSource.

Inheritance

Constructors

PagedStateChangeListener({@required PagedDataSource dataSource, @required Widget child, VoidCallback onListingInProgress, VoidCallback onLoadingFirstPage, VoidCallback onListingCompleted, ErrorListener onSubsequentPageError, VoidCallback onNoItemsFound, ErrorListener onFirstPageError, Key key})
const

Properties

child Widget
The widget below this widget in the tree.
final
dataSource PagedDataSource
The data source to be listened.
final
hashCode int
The hash code for this object. [...]
@nonVirtual, read-only, inherited
key Key
Controls how one widget replaces another widget in the tree. [...]
final, inherited
onFirstPageError ErrorListener
Called when an error occurred fetching the first page.
final
onListingCompleted VoidCallback
Called when the listing has fetched all items.
final
onListingInProgress VoidCallback
Called when the listing has a progress indicator at the bottom.
final
onLoadingFirstPage VoidCallback
Called when the dataSource is waiting for the first page.
final
onNoItemsFound VoidCallback
Called when the listing has no items and no errors.
final
onSubsequentPageError ErrorListener
Called when the dataSource fails fetching a subsequent page.
final
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

build(BuildContext context) Widget
Describes the part of the user interface represented by this widget. [...]
override
createElement() StatelessElement
Creates a StatelessElement to manage this widget's 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
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