14 lines
501 B
Dart
14 lines
501 B
Dart
import 'package:flutter/material.dart';
|
|
|
|
final Map<String, Color> _stringColors = {};
|
|
|
|
Color stringToColor(String string, {double saturation = .8, double lightness = .6}) {
|
|
var color = _stringColors[string];
|
|
if (color == null) {
|
|
final hash = string.codeUnits.fold<int>(0, (prev, el) => prev = el + ((prev << 5) - prev));
|
|
final hue = (hash % 360).toDouble();
|
|
color = HSLColor.fromAHSL(1.0, hue, saturation, lightness).toColor();
|
|
_stringColors[string] = color;
|
|
}
|
|
return color;
|
|
}
|