wiggleInterval property
The amount of logical pixels the divider will wiggle vertically. Wiggling starts at the first row and ends at the specified interval, meaning it's always guaranteed to be at 0 offset at the start and at the end of this interval.
Has no effect when the wiggleCount is set to 0. Lowering this value
with wiggleCount larger than 0 might worsen the performance.
Defaults to the row height, if any. If an dynamic row height is used
instead of a fixed one (rowHeight parameter is set to null) wiggling
will be disabled unless wiggleInterval is specified.
Implementation
final double? wiggleInterval;