41 lines
1.0 KiB
Dart
41 lines
1.0 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_bloc/flutter_bloc.dart';
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class ThemeBloc extends Bloc<ThemeEvent, ThemeState> {
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ThemeBloc() : super(ThemeState.init()) {
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on<ThemeEvent>(switchTheme);
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}
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void switchTheme(ThemeEvent event, Emitter<ThemeState> emit) {
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if (state.theme.brightness == Brightness.light) {
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emit(ThemeState.withBrightness(Brightness.dark));
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} else {
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emit(ThemeState.withBrightness(Brightness.light));
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}
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}
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}
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class ThemeEvent {}
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class ThemeState {
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final ThemeData theme;
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static final ThemeData initTheme = ThemeData(
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colorScheme: ColorScheme.fromSeed(
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seedColor: Colors.lightBlue, brightness: Brightness.light),
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);
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ThemeState({required this.theme});
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factory ThemeState.init() {
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return ThemeState(theme: initTheme);
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}
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factory ThemeState.withBrightness(Brightness brightness) {
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return ThemeState(
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theme: ThemeData(
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colorScheme: ColorScheme.fromSeed(
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seedColor: Colors.lightBlue, brightness: brightness),
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));
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}
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}
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