37 lines
926 B
Dart
37 lines
926 B
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_bloc/flutter_bloc.dart';
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import 'onboarding_event.dart';
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import 'onboarding_state.dart';
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class OnboardingBloc extends Bloc<OnboardingEvent, OnboardingState> {
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OnboardingBloc() : super(OnboardingInitial());
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int pageIndex = 0;
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final pageController = PageController(initialPage: 0);
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@override
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Stream<OnboardingState> mapEventToState(
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OnboardingEvent event,
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) async* {
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if (event is PageChangedEvent) {
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if (pageIndex == 2) {
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yield NextScreenState();
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return;
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}
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pageIndex += 1;
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pageController.animateToPage(
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pageIndex,
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duration: Duration(milliseconds: 500),
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curve: Curves.ease,
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);
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yield PageChangedState(counter: pageIndex);
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} else if (event is PageSwipedEvent) {
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pageIndex = event.index;
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yield PageChangedState(counter: pageIndex);
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}
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}
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} |