25 lines
756 B
Dart
25 lines
756 B
Dart
import 'dart:ui';
|
||
import 'package:flutter/material.dart';
|
||
|
||
//调用的时候需要把hex改一下，比如#223344 needs change to 0xFF223344
|
||
//即把#换成0xFF即可
|
||
|
||
MaterialColor createMaterialColor(Color color) {
|
||
List strengths = <double>[.05];
|
||
Map swatch = <int, Color>{};
|
||
final int r = color.red, g = color.green, b = color.blue;
|
||
|
||
for (int i = 1; i < 10; i++) {
|
||
strengths.add(0.1 * i);
|
||
}
|
||
strengths.forEach((strength) {
|
||
final double ds = 0.5 - strength;
|
||
swatch[(strength * 1000).round()] = Color.fromRGBO(
|
||
r + ((ds < 0 ? r : (255 - r)) * ds).round(),
|
||
g + ((ds < 0 ? g : (255 - g)) * ds).round(),
|
||
b + ((ds < 0 ? b : (255 - b)) * ds).round(),
|
||
1,
|
||
);
|
||
});
|
||
return MaterialColor(color.value, swatch);
|
||
} |