Curtains.elevated constructor

const Curtains.elevated({ Key? key, Axis scrollDirection = Axis.vertical, double? elevation = 9.0, Color? color, Sensitivity sensitivity = Sensitivity.none, bool startInitVisible = false, bool endInitVisible = true, AlignmentGeometry? alignment, TextDirection? textDirection, Clip clipBehavior = Clip.hardEdge, required Widget child, Duration? duration = _350ms, Curve? curve = Curves.easeOut, })

Wraps a scrollable child with scrim shadows while
not at the start or end, alluding to unrevealed content.

Construct simple elevated 📜 Curtains that only require
a scrollable child. Instead of Decorations for each curtain,
supply double elevation that is shared by both.

---

Parameter scrollDirection defaults to Axis.vertical like ListView.

• Initialize this property to match the child's scrollDirection.

Parameter textDirection defaults to Directionality.of(context),
but may be overridden.

With non-negative Sensitivity, the scrims of this 📜 Curtains
will change state before the scrollable reaches a min/max extent.

• sensitivity.start defines startCurtain tolerance to min extent.
• sensitivity.end defines endCurtain tolerance to max extent.

---

Parameter elevation defaults to 9.0 and color may be overridden

• For more information, see: 👥 package:shadows's Elevation static methods, such as Elevation.asBoxShadows and Elevation.asBoxDecoration

---

• Before any scrolling occurs, end curtain initializes visible, even if this 📜 Curtains wraps a scrollable not long enough to scroll.
  • If this does not fit the situation, consider endInitVisible.
  • Also available is startInitVisible. Defaults false.

See class documentation for full examples: 📜 Curtains

Implementation

const Curtains.elevated({
  Key? key,
  this.scrollDirection = Axis.vertical,
  this.elevation = 9.0,
  this.color,
  this.sensitivity = Sensitivity.none,
  this.startInitVisible = false,
  this.endInitVisible = true,
  this.alignment,
  this.textDirection,
  this.clipBehavior = Clip.hardEdge,
  required this.child,
  this.duration = _350ms,
  this.curve = Curves.easeOut,
})  : _isDrawn = false,
      startCurtain = null,
      endCurtain = null,
      spread = 0.0,
      super(key: key);