<itemvalue="The number is signed, allowing a positive or negative sign at the start. This flag is only used for the [number] input type, otherwise `null`. Use `const TextInputType.numberWithOptions(signed: true)` to set this."/>
<itemvalue="The number is decimal, allowing a decimal point to provide fractional. This flag is only used for the [number] input type, otherwise `null`. Use `const TextInputType.numberWithOptions(decimal: true)` to set this."/>
<itemvalue="Optimize for numerical information. Requests a numeric keyboard with additional settings. The [signed] and [decimal] parameters are optional."/>
<itemvalue="The object responsible for creating this render object. Used in debug messages. See also: [DebugCreator], which the [widgets] library uses as values for this field."/>
<itemvalue="_Editable"/>
<itemvalue="This method should not be called from [State.dispose] because the element tree is no longer stable at that time. To refer to an ancestor from that method, save a reference to the ancestor in [State.didChangeDependencies]. It is safe to use this method from [State.deactivate], which is called whenever the widget is removed from the tree. It is also possible to call this method from interaction event handlers (e.g. gesture callbacks) or timers, to obtain a value once, if that value is not going to be cached and reused later. Calling this method is O(1) with a small constant factor, but will lead to the widget being rebuilt more often. Once a widget registers a dependency on a particular type by calling this method, it will be rebuilt, and [State.didChangeDependencies] will be called, whenever changes occur relating to that widget until the next time the widget or one of its ancestors is moved (for example, because an ancestor is added or removed). The [aspect] parameter is only used when `T` is an [InheritedWidget] subclasses that supports partial updates, like [InheritedModel]. It specifies what "aspect" of the inherited widget this context depends on."/>
