reading_bloc.dart
1.38 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
import 'package:flutter/cupertino.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:wow_english/pages/reading/widgets/ReadingModeType.dart';
part 'reading_event.dart';
part 'reading_state.dart';
class ReadingPageBloc extends Bloc<ReadingPageEvent, ReadingPageState> {
final PageController pageController;
///当前页索引
int _currentPage = 0;
///当前播放模式
ReadingModeType _currentMode = ReadingModeType.auto;
int get currentPage => _currentPage + 1;
ReadingModeType get currentMode => _currentMode;
ReadingPageBloc(this.pageController) : super(ReadingPageInitial()) {
on<CurrentPageIndexChangeEvent>(_pageControllerChange);
on<CurrentModeChangeEvent>(_selectItemLoad);
// pageController.addListener(() {
// _currentPage = pageController.page!.round();
// });
}
@override
Future<void> close() {
pageController.dispose();
return super.close();
}
void _pageControllerChange(CurrentPageIndexChangeEvent event, Emitter<ReadingPageState> emitter) async {
_currentPage = event.pageIndex;
emitter(CurrentPageIndexState());
}
void _selectItemLoad(CurrentModeChangeEvent event, Emitter<ReadingPageState> emitter) async {
if (_currentMode == ReadingModeType.auto) {
_currentMode = ReadingModeType.manual;
} else {
_currentMode = ReadingModeType.auto;
}
emitter(CurrentModeState());
}
}