value property

double? value

The progress value. Defaults to null.

A value of 0.0 means no progress and 1.0 means that progress is complete. The value will be clamped to be in the range, [0.0, 1.0].

A null value indicates an indeterminate progress.

Contract

Throws AssertionError if value is not null and is less than 0.0 or greater than 1.0.

Implementation

final double? value;