lerp static method

DecorationImage? lerp(
  1. DecorationImage? a,
  2. DecorationImage? b,
  3. double t
)

Linearly interpolates between two DecorationImages.

The t argument represents position on the timeline, with 0.0 meaning that the interpolation has not started, returning a, 1.0 meaning that the interpolation has finished, returning b, and values in between meaning that the interpolation is at the relevant point on the timeline between a and this. The interpolation can be extrapolated beyond 0.0 and 1.0, so negative values and values greater than 1.0 are valid (and can easily be generated by curves such as Curves.elasticInOut).

Values for t are usually obtained from an Animation<double>, such as an AnimationController.

Implementation

static DecorationImage? lerp(DecorationImage? a, DecorationImage? b, double t) {
  if (identical(a, b) || t == 0.0) {
    return a;
  }
  if (t == 1.0) {
    return b;
  }
  return _BlendedDecorationImage(a, b, t);
}