<itemvalue="Initializes a new [FirebaseApp] instance by [name] and [options] and returns the created app. This method should be called before any usage of FlutterFire plugins. The default app instance can be initialized here simply by passing no "name" as an argument in both Dart & manual initialization flows."/>
<itemvalue="Notify the framework that the internal state of this object has changed. Whenever you change the internal state of a [State] object, make the change in a function that you pass to [setState]: ```dart setState(() { _myState = newValue; }); ``` The provided callback is immediately called synchronously. It must not return a future (the callback cannot be `async`), since then it would be unclear when the state was actually being set. Calling [setState] notifies the framework that the internal state of this object has changed in a way that might impact the user interface in this subtree, which causes the framework to schedule a [build] for this [State] object. If you just change the state directly without calling [setState], the framework might not schedule a [build] and the user interface for this subtree might not be updated to reflect the new state. Generally it is recommended that the `setState` method only be used to wrap the actual changes to the state, not any computation that might be associated with the change. For example, here a value used by the [build] function is incremented, and then the change is written to disk, but only the increment is wrapped in the `setState`: ```dart Future<void> _incrementCounter() async { setState(() { _counter++; }); Directory directory = await getApplicationDocumentsDirectory(); final String dirName = directory.path; await File('dircounter.txt').writeAsString('_counter'); } ``` It is an error to call this method after the framework calls [dispose]. You can determine whether it is legal to call this method by checking whether the [mounted] property is true."/>
<itemvalue="Makes this Rx looks like a function so you can update a new value using `rx(someOtherValue)`. Practical to assign the Rx directly to some Widget that has a signature ::onChange( value ) Example: ``` final myText = 'GetX rocks!'.obs; in your Constructor, just to check it works :P ever( myText, print ) ; in your build(BuildContext) { TextField( onChanged: myText, ),"/>
<itemvalue="updates the value to `null` and adds it to the Stream. Even with null-safety coming, is still an important feature to support, as `call()` doesn't accept `null` values. For instance, `InputDecoration.errorText` has to be null to not show the "error state". Sample: ``` final inputError = ''.obs..nil(); print('{inputError.runtimeType}: inputError'); outputs > RxString: null ``` void nil() { subject.add(_value = null); }"/>
<itemvalue="Cause the record did not support by hive cache, remove this value by now Comment reply to record, null by default, soulsRecord or usersRecord. if reply to type is soul, this value is soul record if reply to type is user, this value is user record dynamic replyToRecord;"/>
<itemvalue="Takes a route [name] String generated by [to], [off], [offAll] (and similar context navigation methods), cleans the extra chars and accommodates the format. TODO: check for a more "appealing" URL naming convention. `() => MyHomeScreenView` becomes `my-home-screen-view`."/>
<itemvalue="Navigation.push() shortcut.<br><br> Pushes a new `page` to the stack It has the advantage of not needing context, so you can call from your business logic You can set a custom [transition], and a transition [duration]. You can send any type of value to the other route in the [arguments]. Just like native routing in Flutter, you can push a route as a [fullscreenDialog], [id] is for when you are using nested navigation, as explained in documentation If you want the same behavior of ios that pops a route when the user drag, you can set [popGesture] to true If you're using the [Bindings] api, you must define it here By default, GetX will prevent you from push a route that you already in, if you want to push anyway, set [preventDuplicates] to false"/>
<itemvalue="Controls a WebView, such as an [InAppWebView] widget instance, a [HeadlessInAppWebView] instance or [InAppBrowser] WebView instance. If you are using the [InAppWebView] widget, an [InAppWebViewController] instance can be obtained by setting the [InAppWebView.onWebViewCreated] callback. Instead, if you are using an [InAppBrowser] instance, you can get it through the [InAppBrowser.webViewController] attribute."/>
<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"/>
