67 lines
1.7 KiB
Dart
67 lines
1.7 KiB
Dart
import 'package:flutter/material.dart';
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import 'app_colors_base.dart';
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@immutable
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class AppThemeExtension extends ThemeExtension<AppThemeExtension> {
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final Color success;
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final Color warning;
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final Color danger;
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final Color textSecondary;
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const AppThemeExtension({
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required this.success,
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required this.warning,
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required this.danger,
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required this.textSecondary,
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});
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// 工厂方法，根据 AppColorsBase 创建
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factory AppThemeExtension.fromColors(AppColorsBase colors) {
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return AppThemeExtension(
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success: colors.success,
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warning: colors.warning,
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danger: colors.danger,
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textSecondary: colors.textSecondary,
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);
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}
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@override
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ThemeExtension<AppThemeExtension> copyWith({
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Color? success,
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Color? warning,
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Color? danger,
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Color? textSecondary,
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}) {
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return AppThemeExtension(
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success: success ?? this.success,
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warning: warning ?? this.warning,
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danger: danger ?? this.danger,
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textSecondary: textSecondary ?? this.textSecondary,
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);
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}
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@override
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AppThemeExtension lerp(AppThemeExtension? other, double t) {
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if (other == null) return this;
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return AppThemeExtension(
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success: Color.lerp(success, other.success, t)!,
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warning: Color.lerp(warning, other.warning, t)!,
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danger: Color.lerp(danger, other.danger, t)!,
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textSecondary: Color.lerp(textSecondary, other.textSecondary, t)!,
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);
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}
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}
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extension AppThemeExt on BuildContext {
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AppThemeExtension get themeEx => Theme.of(this).extension<AppThemeExtension>()!;
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Color get success => themeEx.success;
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Color get warning => themeEx.warning;
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Color get danger => themeEx.danger;
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Color get textSecondary => themeEx.textSecondary;
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}
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