<itemvalue="The amount the pointer has moved along the primary axis in the coordinate space of the event receiver since the previous update. If the [GestureDragUpdateCallback] is for a one-dimensional drag (e.g., a horizontal or vertical drag), then this value contains the component of [delta] along the primary axis (e.g., horizontal or vertical, respectively). Otherwise, if the [GestureDragUpdateCallback] is for a two-dimensional drag (e.g., a pan), then this value is null. Defaults to null if not specified in the constructor."/>
<itemvalue="The local position in the coordinate system of the event receiver at which the pointer contacted the screen. Defaults to [globalPosition] if not specified in the constructor."/>
<itemvalue="The pointer's global position when it triggered this update. See also: [localPosition], which is the [globalPosition] transformed to the coordinate space of the event receiver."/>
<itemvalue="The amount the pointer has moved in the coordinate space of the event receiver since the previous update. If the [GestureDragUpdateCallback] is for a one-dimensional drag (e.g., a horizontal or vertical drag), then this offset contains only the delta in that direction (i.e., the coordinate in the other direction is zero). Defaults to zero if not specified in the constructor."/>
<itemvalue="The amount the pointer has moved in the coordinate space of the event receiver since the previous update. If the [GestureDragUpdateCallback] is for a one-dimensional drag (e.g., a horizontal or vertical drag), then this offset contains only the delta in that direction (i.e., the coordinate in the other direction is zero). Defaults to zero if not specified in the constructor."/>
<itemvalue="Details object for callbacks that use [GestureDragUpdateCallback]."/>
<itemvalue="Details object for callbacks that use [GestureDragUpdateCallback]."/>
<itemvalue="options changable"/>
<itemvalue="options changable"/>
@ -65,9 +68,6 @@
<itemvalue="Scroll physics that attempt to keep the scroll position in range when the contents change dimensions suddenly."/>
<itemvalue="Scroll physics that attempt to keep the scroll position in range when the contents change dimensions suddenly."/>
<itemvalue="Scroll physics for environments that prevent the scroll offset from reaching beyond the bounds of the content."/>
<itemvalue="Scroll physics for environments that prevent the scroll offset from reaching beyond the bounds of the content."/>
<itemvalue="Reduces a collection to a single value by iteratively combining each element of the collection with an existing value"/>
<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."/>