<itemvalue="Reduces a collection to a single value by iteratively combining each element of the collection with an existing value"/>
<itemvalue="Returns a new color with the provided components updated. Each component ([alpha], [red], [green], [blue]) represents a floating-point value; see [Color.from] for details and examples. If [colorSpace] is provided, and is different than the current color space, the component values are updated before transforming them to the provided [ColorSpace]. Example: ```dart import 'dart:ui'; Create a color with 50% opacity. Color makeTransparent(Color color) => color.withValues(alpha: 0.5);"/>
<itemvalue="Returns a new color that matches this color with the alpha channel replaced with `a` (which ranges from 0 to 255). Out of range values will have unexpected effects."/>
<itemvalue="Returns a new color that matches this color with the alpha channel replaced with the given `opacity` (which ranges from 0.0 to 1.0). Out of range values will have unexpected effects."/>
<itemvalue="Column is also a layout widget. It takes a list of children and arranges them vertically. By default, it sizes itself to fit its children horizontally, and tries to be as tall as its parent. Column has various properties to control how it sizes itself and how it positions its children. Here we use mainAxisAlignment to center the children vertically; the main axis here is the vertical axis because Columns are vertical (the cross axis would be horizontal). TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint" action in the IDE, or press "p""/>
<itemvalue="Represents the interactive "state" of this widget in terms of a set of [WidgetState]s, including [WidgetState.disabled], [WidgetState.hovered], [WidgetState.error], and [WidgetState.focused]. Classes based on this one can provide their own [WidgetStatesController] to which they've added listeners. They can also update the controller's [WidgetStatesController.value] however, this may only be done when it's safe to call [State.setState], like in an event handler. The controller's [WidgetStatesController.value] represents the set of states that a widget's visual properties, typically [WidgetStateProperty] values, are resolved against. It is _not_ the intrinsic state of the widget. The widget is responsible for ensuring that the controller's [WidgetStatesController.value] tracks its intrinsic state. For example one cannot request the keyboard focus for a widget by adding [WidgetState.focused] to its controller. When the widget gains the or loses the focus it will [WidgetStatesController.update] its controller's [WidgetStatesController.value] and notify listeners of the change."/>
<itemvalue="Schedule a callback for the end of this frame. The provided callback is run immediately after a frame, just after the persistent frame callbacks (which is when the main rendering pipeline has been flushed). This method does not request a new frame. If a frame is already in progress and the execution of post-frame callbacks has not yet begun, then the registered callback is executed at the end of the current frame. Otherwise, the registered callback is executed after the next frame (whenever that may be, if ever). The callbacks are executed in the order in which they have been added. Post-frame callbacks cannot be unregistered. They are called exactly once. In debug mode, if [debugTracePostFrameCallbacks] is set to true, then the registered callback will show up in the timeline events chart, which can be viewed in [DevTools](https:docs.flutter.devtoolsdevtools). In that case, the `debugLabel` argument specifies the name of the callback as it will appear in the timeline. In profile and release builds, post-frame are never traced, and the `debugLabel` argument is ignored."/>
<itemvalue="音量"/>
@ -63,11 +68,6 @@
<itemvalue="pong callback"/>
<itemvalue="{@template flutter.widgets.TextField.textInputAction} The type of action button to use for the keyboard. Defaults to [TextInputAction.newline] if [keyboardType] is [TextInputType.multiline] and [TextInputAction.done] otherwise. {@endtemplate}"/>
<itemvalue="Optimize for textual information. Requests the default platform keyboard. static const TextInputType text = TextInputType._(0); Optimize for multiline textual information. Requests the default platform keyboard, but accepts newlines when the enter key is pressed. This is the input type used for all multiline text fields. static const TextInputType multiline = TextInputType._(1);"/>
<itemvalue="gcs robot delays"/>
<itemvalue="gcs robot delaies"/>
<itemvalue="Connect timeout value in milliseconds, i.e the time period between successive connection attempts. Minimum value is 1000ms, defaults to 5000ms."/>