setAlpha static method

int setAlpha(
  1. int color,
  2. double alpha
)

Set the alpha channel of a color (0.0 - 1.0).

Implementation

static int setAlpha(int color, double alpha) {
  final int a = (alpha * 255).round().clamp(0, 255);
  return (a << 24) | (color & 0x00FFFFFF);
}