<itemvalue="A scrolling container that animates items when they are inserted or removed. This widget's [AnimatedListState] can be used to dynamically insert or remove items. To refer to the [AnimatedListState] either provide a [GlobalKey] or use the static [of] method from an item's input callback. This widget is similar to one created by [ListView.builder]. {@youtube 560 315 https:www.youtube.comwatch?v=ZtfItHwFlZ8} {@tool dartpad} This sample application uses an [AnimatedList] to create an effect when items are removed or added to the list. See code in examplesapilibwidgetsanimated_listanimated_list.0.dart {@end-tool} See also: [SliverAnimatedList], a sliver that animates items when they are inserted or removed from a list."/>
<itemvalue="{@template flutter.widgets.animatedList.initialItemCount} The number of items the list will start with. The appearance of the initial items is not animated. They are created, as needed, by [itemBuilder] with an animation parameter of [kAlwaysCompleteAnimation]. {@endtemplate}"/>
<itemvalue="Insert the given entry into the overlay. If `below` is non-null, the entry is inserted just below `below`. If `above` is non-null, the entry is inserted just above `above`. Otherwise, the entry is inserted on top. It is an error to specify both `above` and `below`."/>
<itemvalue="Obs: unlike other get methods, this one you need to send a function that returns the widget to the page argument, like this: Get.offUntil(GetPageRoute(page: () => HomePage()), predicate)"/>
<itemvalue="A Timestamp represents a point in time independent of any time zone or calendar, represented as seconds and fractions of seconds at nanosecond resolution in UTC Epoch time. It is encoded using the Proleptic Gregorian Calendar which extends the Gregorian calendar backwards to year one. It is encoded assuming all minutes are 60 seconds long, i.e. leap seconds are "smeared" so that no leap second table is needed for interpretation. Range is from 0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z. By restricting to that range, we ensure that we can convert to and from RFC 3339 date strings. For more information, see [the reference timestamp definition](https:github.comgoogleprotobufblobmastersrcgoogleprotobuftimestamp.proto)"/>
<itemvalue="A widget that displays its children in multiple horizontal or vertical runs. A [Wrap] lays out each child and attempts to place the child adjacent to the previous child in the main axis, given by [direction], leaving [spacing] space in between. If there is not enough space to fit the child, [Wrap] creates a new _run_ adjacent to the existing children in the cross axis. After all the children have been allocated to runs, the children within the runs are positioned according to the [alignment] in the main axis and according to the [crossAxisAlignment] in the cross axis. The runs themselves are then positioned in the cross axis according to the [runSpacing] and [runAlignment]. {@youtube 560 315 https:www.youtube.comwatch?v=z5iw2SeFx2M} {@tool snippet} This example renders some [Chip]s representing four contacts in a [Wrap] so that they flow across lines as necessary."/>
<itemvalue="Whether to auto create nested builders. Defaults to `true`. When this is enabled, accessing a nested builder via a getter causes it to be instantiated if it's `null`. In most cases this is convenient, but if you are using builders for data processing then you might need to check for `null`. If so you should set this to `false`."/>
<itemvalue="Whether the field overrides the `autoCreateNestedBuilders` setting from the class. Defaults to `null` which indicates the setting is to be taken from the `autoCreateNestedBuilders` setting on the class."/>
<itemvalue="Whether the field is serialized. Defaults to `null` which means [BuiltValue.defaultSerialize] is used. If a field is not serialized, it must either be `@nullable` or specify a default for deserialization to succeed."/>
<itemvalue="Whether the field overrides the `nestedBuilders` setting from the class. Defaults to `null` which indicates the setting is to be taken from the `nestedBuilders` setting on the class."/>
<itemvalue="A fixed-length list of 8-bit unsigned integers. For long lists, this implementation can be considerably more space- and time-efficient than the default [List] implementation. Integers stored in the list are truncated to their low eight bits, interpreted as an unsigned 8-bit integer with values in the range 0 to 255."/>
<itemvalue="Finds widgets whose current widget is the instance given by the argument. Sample code ```dart Suppose you have a button created like this: Widget myButton = Button( child: Text('Update') ); You can find and tap on it like this: tester.tap(find.byWidget(myButton)); ``` If the `skipOffstage` argument is true (the default), then this skips nodes that are [Offstage] or that are from inactive [Route]s."/>
<itemvalue="Saves item by [key] to a storage. Value should be json encodable (`json.encode()` is called under the hood). After item was set to storage, consecutive [getItem] will return `json` representation of this item if [toEncodable] is provided, it is called before setting item to storage otherwise `value.toJson()` is called"/>
<itemvalue="Makes a direct update of [value] adding it to the Stream useful when you make use of Rx for custom Types to referesh your UI. Sample: ``` class Person { String name, last; int age; Person({this.name, this.last, this.age}); @override String toString() => 'name last, age years old'; } final person = Person(name: 'John', last: 'Doe', age: 18).obs; person.value.name = 'Roi'; person.refresh(); print( person ); ```"/>
<itemvalue="Changes the maximum cache bytes. If the new size is smaller than the current size in bytes, the extraneous elements are evicted immediately. Setting this to zero and then returning it to its original value will therefore immediately clear the cache."/>
<itemvalue="The singleton that implements the Flutter framework's image cache. The cache is used internally by [ImageProvider] and should generally not be accessed directly. The image cache is created during startup by the [PaintingBinding]'s [PaintingBinding.createImageCache] method."/>
<itemvalue="An approximate cache size threshold for the on-disk data. If the cache grows beyond this size, Firestore will start removing data that hasn't been recently used. The size is not a guarantee that the cache will stay below that size, only that if the cache exceeds the given size, cleanup will be attempted. The default value is 40 MB. The threshold must be set to at least 1 MB, and can be set to [Settings.CACHE_SIZE_UNLIMITED] to disable garbage collection."/>
<itemvalue="Constant used to indicate the LRU garbage collection should be disabled. Set this value as the cacheSizeBytes on the settings passed to the Firestore instance."/>
<itemvalue="used for [SmartRefresh.onLoading] since snapshot will automatically receive latest changes there is no need for [SmartRefresh.onRefresh] [onLoading] will expand the [limitSize] so that a resubscription is needed [onLimitChange] will perform all necessary operations and tell us whether if pagination has reached the end."/>
<itemvalue="Warning: A call to tap() with finder "exactly one widget with text "Delete" (ignoring offstage widgets): Text("Delete", inherit: true, family: Montserrat_600, familyFallback: [Montserrat], size: 18.0, weight: 600, letterSpacing: -0.2, height: 1.2x, dependencies: [MediaQuery, DefaultTextStyle])" derived an Offset (Offset(98.0, 1028.0)) that would not hit test on the specified widget. Maybe the widget is actually off-screen, or another widget is obscuring it, or the widget cannot receive pointer events. Indeed, Offset(98.0, 1028.0) is outside the bounds of the root of the render tree, Size(375.0, 812.0). The finder corresponds to this RenderBox: RenderParagrapha74b7 relayoutBoundary=up20 The hit test result at that offset is: HitTestResult(HitTestEntrycc50d(RenderView113c1), HitTestEntry8b8b2(<AutomatedTestWidgetsFlutterBinding>))"/>
<itemvalue="To silence this warning, pass "warnIfMissed: false" to "tap()". To make this warning fatal, set WidgetController.hitTestWarningShouldBeFatal to true."/>
<itemvalue="Warning: A call to tap() with finder "exactly one widget with text "Delete" (ignoring offstage widgets): Text("Delete", inherit: true, family: Montserrat_600, familyFallback: [Montserrat], size: 18.0, weight: 600, letterSpacing: -0.2, height: 1.2x, dependencies: [MediaQuery, DefaultTextStyle])" derived an Offset (Offset(98.0, 1028.0)) that would not hit test on the specified widget. Maybe the widget is actually off-screen, or another widget is obscuring it, or the widget cannot receive pointer events. Indeed, Offset(98.0, 1028.0) is outside the bounds of the root of the render tree, Size(375.0, 812.0). The finder corresponds to this RenderBox: RenderParagraphcc8a4 relayoutBoundary=up20 The hit test result at that offset is: HitTestResult(HitTestEntryc7125(RenderView6eff7), HitTestEntryeb0ec(<AutomatedTestWidgetsFlutterBinding>))"/>
<itemvalue="The overflowing RenderFlex has an orientation of Axis.horizontal. The edge of the RenderFlex that is overflowing has been marked in the rendering with a yellow and black striped pattern. This is usually caused by the contents being too big for the RenderFlex. Consider applying a flex factor (e.g. using an Expanded widget) to force the children of the RenderFlex to fit within the available space instead of being sized to their natural size. This is considered an error condition because it indicates that there is content that cannot be seen. If the content is legitimately bigger than the available space, consider clipping it with a ClipRect widget before putting it in the flex, or using a scrollable container rather than a Flex, like a ListView."/>
<itemvalue="Warning: A call to tap() with finder "exactly one widget with text "Delete" (ignoring offstage widgets): Text("Delete", inherit: true, family: Montserrat_600, familyFallback: [Montserrat], size: 38.4, weight: 600, letterSpacing: -0.2, height: 1.2x, dependencies: [MediaQuery, DefaultTextStyle])" derived an Offset (Offset(209.6, 1060.8)) that would not hit test on the specified widget. Maybe the widget is actually off-screen, or another widget is obscuring it, or the widget cannot receive pointer events. Indeed, Offset(209.6, 1060.8) is outside the bounds of the root of the render tree, Size(800.0, 600.0)."/>
<itemvalue="Warning: At least one test in this suite creates an HttpClient. When running a test suite that uses TestWidgetsFlutterBinding, all HTTP requests will return status code 400, and no network request will actually be made. Any test expecting a real network connection and status code will fail. To test code that needs an HttpClient, provide your own HttpClient implementation to the code under test, so that your test can consistently provide a testable response to the code under test."/>
<itemvalue="A mixin class for providing string and [DiagnosticsNode] debug representations describing the properties of an object. The string debug representation is generated from the intermediate [DiagnosticsNode] representation. The [DiagnosticsNode] representation is also used by debugging tools displaying interactive trees of objects and properties. See also: [debugFillProperties], which lists best practices for specifying the properties of a [DiagnosticsNode]. The most common use case is to override [debugFillProperties] defining custom properties for a subclass of [DiagnosticableTreeMixin] using the existing [DiagnosticsProperty] subclasses. [DiagnosticableTree], which extends this class to also describe the children of a tree structured object. [DiagnosticableTree.debugDescribeChildren], which lists best practices for describing the children of a [DiagnosticsNode]. Typically the base class already describes the children of a node properly or a node has no children. [DiagnosticsProperty], which should be used to create leaf diagnostic nodes without properties or children. There are many [DiagnosticsProperty] subclasses to handle common use cases."/>
<itemvalue="Finds [Semantics] widgets matching the given `label`, either by [RegExp.hasMatch] or string equality. The framework may combine semantics labels in certain scenarios, such as when multiple [Text] widgets are in a [MaterialButton] widget. In such a case, it may be preferable to match by regular expression. Consumers of this API __must not__ introduce unsuitable content into the semantics tree for the purposes of testing; in particular, you should prefer matching by regular expression rather than by string if the framework has combined your semantics, and not try to force the framework to break up the semantics nodes. Breaking up the nodes would have an undesirable effect on screen readers and other accessibility services. Sample code ```dart expect(find.bySemanticsLabel('Back'), findsOneWidget); ``` If the `skipOffstage` argument is true (the default), then this skips nodes that are [Offstage] or that are from inactive [Route]s."/>
