NyListView<T> class

The NyListView widget is a wrapper for the ListView widget. It provides a simple way to display a list of items with full type safety.

Basic Example (backwards compatible):

NyListView<String>(
 data: () => ['Item 1', 'Item 2', 'Item 3'],
 child: (context, data) => Text(data), // data is dynamic (backwards compatible)
)

Type-safe Examples:

NyListView<String>(
 data: () => ['Item 1', 'Item 2', 'Item 3'],
 childTyped: (context, String data) => Text(data), // data is String (type-safe)
)

NyListView<String>(
 data: () => ['Item 1', 'Item 2', 'Item 3'],
 childTypedWithIndex: (context, String data, int index) => Text('$data at $index'),
)

NyListView<String>(
 data: () => ['Item 1', 'Item 2', 'Item 3'],
 childTypedWithHelper: (context, String data, int index, NyListViewItemHelper helper) {
   return Container(
     color: helper.isEven() ? Colors.grey : Colors.white,
     child: Text(data),
   );
 },
)

Inheritance

Available extensions

Constructors

NyListView.new({Key? key, Function? child, NyChildBuilder<T>? childTyped, NyChildBuilderWithIndex<T>? childTypedWithIndex, NyChildBuilderWithHelper<T>? childTypedWithHelper, required dynamic data(), dynamic transform(List<T> data)?, Widget? empty, LoadingStyle? loadingStyle, String? stateName, Axis? scrollDirection, bool? reverse, ScrollController? controller, bool? primary, ScrollPhysics? physics, bool? shrinkWrap, EdgeInsets? padding, double? itemExtent, Widget? prototypeItem, ChildIndexGetter? findChildIndexCallback, bool addAutomaticKeepAlives = true, bool addRepaintBoundaries = true, bool addSemanticIndexes = true, double? cacheExtent, int? semanticChildCount, DragStartBehavior? dragStartBehavior, ScrollViewKeyboardDismissBehavior? keyboardDismissBehavior, String? restorationId, Clip? clipBehavior, Widget? header, dynamic sort(List<T> items)?}): const
NyListView.grid({Key? key, int? crossAxisCount = 2, double? mainAxisSpacing = 1.0, double? crossAxisSpacing = 1.0, Function? child, NyChildBuilder<T>? childTyped, NyChildBuilderWithIndex<T>? childTypedWithIndex, NyChildBuilderWithHelper<T>? childTypedWithHelper, required dynamic data(), dynamic transform(List<T> data)?, Widget? empty, LoadingStyle? loadingStyle, String? stateName, Axis? scrollDirection, bool? reverse, ScrollController? controller, bool? primary, ScrollPhysics? physics, bool? shrinkWrap, EdgeInsets? padding, double? itemExtent, Widget? prototypeItem, ChildIndexGetter? findChildIndexCallback, bool addAutomaticKeepAlives = true, bool addRepaintBoundaries = true, bool addSemanticIndexes = true, double? cacheExtent, int? semanticChildCount, DragStartBehavior? dragStartBehavior, ScrollViewKeyboardDismissBehavior? keyboardDismissBehavior, String? restorationId, Clip? clipBehavior, Widget? header, dynamic sort(List<T> items)?}): const
NyListView.separated({Key? key, required dynamic data(), dynamic transform(List<T> data)?, Function? child, NyChildBuilder<T>? childTyped, NyChildBuilderWithIndex<T>? childTypedWithIndex, NyChildBuilderWithHelper<T>? childTypedWithHelper, required IndexedWidgetBuilder? separatorBuilder, Widget? empty, LoadingStyle? loadingStyle, String? stateName, Axis? scrollDirection, bool? reverse, ScrollController? controller, bool? primary, ScrollPhysics? physics, bool? shrinkWrap, EdgeInsets? padding, double? itemExtent, Widget? prototypeItem, ChildIndexGetter? findChildIndexCallback, bool addAutomaticKeepAlives = true, bool addRepaintBoundaries = true, bool addSemanticIndexes = true, double? cacheExtent, int? semanticChildCount, DragStartBehavior? dragStartBehavior, ScrollViewKeyboardDismissBehavior? keyboardDismissBehavior, String? restorationId, Clip? clipBehavior, Widget? header, dynamic sort(List<T> items)?}): const

Properties

addAutomaticKeepAlives → bool: final
addRepaintBoundaries → bool: final
addSemanticIndexes → bool: final
cacheExtent → double?: final
child → Function?: final
childTyped → NyChildBuilder<T>?: final
childTypedWithHelper → NyChildBuilderWithHelper<T>?: final
childTypedWithIndex → NyChildBuilderWithIndex<T>?: final
clipBehavior → Clip?: final
controller → ScrollController?: final
crossAxisCount → int?: final
crossAxisSpacing → double?: final
data → dynamic Function(): final
dragStartBehavior → DragStartBehavior?: final
empty → Widget?: final
findChildIndexCallback → ChildIndexGetter?: final
hashCode → int: The hash code for this object.
no setterinherited
header → Widget?: final
itemExtent → double?: final
key → Key?: Controls how one widget replaces another widget in the tree.
finalinherited
keyboardDismissBehavior → ScrollViewKeyboardDismissBehavior?: final
kind → String: final
loadingStyle → LoadingStyle?: final
mainAxisSpacing → double?: final
padding → EdgeInsets?: final
physics → ScrollPhysics?: final
primary → bool?: final
prototypeItem → Widget?: final
restorationId → String?: final
reverse → bool?: final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
scrollDirection → Axis?: final
semanticChildCount → int?: final
separatorBuilder → IndexedWidgetBuilder?: final
shrinkWrap → bool?: final
sort → dynamic Function(List<T> items)?: final
stateName → String?: final
transform → dynamic Function(List<T> data)?: final

Methods

createElement() → StatefulElement: Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<StatefulWidget>: 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
faderBottom(int strength, {Color color = Colors.black}) → NyFader: Available on StatefulWidget, provided by the NyStateful extension
Make gradient fader from the bottom of the widget.
faderFrom(int strength, {Color color = Colors.black, List<AlignmentGeometry> alignment = const [Alignment.topCenter, Alignment.bottomCenter]}) → NyFader: Available on StatefulWidget, provided by the NyStateful extension
fader from bottom
faderLeft(int strength, {Color color = Colors.black}) → NyFader: Available on StatefulWidget, provided by the NyStateful extension
Make gradient fader from the left of the widget.
faderRight(int strength, {Color color = Colors.black}) → NyFader: Available on StatefulWidget, provided by the NyStateful extension
Make gradient fader from the right of the widget.
faderTop(int strength, {Color color = Colors.black}) → NyFader: Available on StatefulWidget, provided by the NyStateful extension
Make gradient fader from the top of the widget.
flexible({Key? key, int flex = 1, FlexFit fit = FlexFit.loose}) → Flexible: Available on StatefulWidget, provided by the NyStateful extension
Make a StatefulWidget Flexible. Example:
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
pullable({required Future<void> onRefresh()?, PullableConfig? pullableConfig}) → Widget: Available on Widget, provided by the NyWidget extension
Make a widget pullable using the Pullable widget.
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode: Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toSkeleton({Key? key, bool? ignoreContainers, bool? justifyMultiLineText, Color? containersColor, bool ignorePointers = true, bool enabled = true, PaintingEffect? effect, TextBoneBorderRadius? textBoneBorderRadius}) → Skeletonizer: Available on Widget, provided by the NyWidget extension
Make a widget a skeleton using the Skeletonizer package.
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String: A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → 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

Static Methods

stateReset(String stateName) → dynamic: Resets the state