login_bloc.dart
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import 'dart:async';
import 'package:flutter/cupertino.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
part 'login_event.dart';
part 'login_state.dart';
enum LoginType {
///密码登陆
pwd,
///验证码登陆
sms,
}
class LoginBloc extends Bloc<LoginEvent, LoginState> {
bool _canLogin = false;
///是否可以发送验证码
bool _canSendSms = false;
///正在发送验证码
bool _sendSmsIng = false;
///是否阅读协议
bool _agreement = false;
///登陆方式
LoginType _loginType = LoginType.sms;
int _countDown = 0;
final TextEditingController phoneNumController = TextEditingController();
final TextEditingController checkNumController = TextEditingController();
bool get canLogin => _canLogin;
bool get agreement => _agreement;
LoginType get loginType => _loginType;
bool get canSendSms => _canSendSms;
int get countDown => _countDown;
bool get sendSmsIng => _sendSmsIng;
LoginBloc() : super(LoginInitial()) {
on<RequestLoginEvent>(_requestLoginApi);
on<ChangeLoginTypeEvent>(_changeLoginType);
on<PhoneNumChangeEvent>(_changePhoneNumber);
on<AgreementChangeEvent>(_agreementTypeChange);
on<ForgetPasswordEvent>(_forgetPassword);
on<CheckFieldChangeEvent>(_checkFiledChange);
on<CountDownEvent>(_countDownChange);
on<CancelCountDownEvent>(_cancelTimer);
}
///请求登陆
void _requestLoginApi(RequestLoginEvent event, Emitter<LoginState> emitter) async {
}
///切换登陆方式
void _changeLoginType(ChangeLoginTypeEvent event, Emitter<LoginState> emitter) async {
if (_loginType == LoginType.sms) {
_loginType = LoginType.pwd;
} else {
_loginType = LoginType.sms;
}
checkNumController.clear();
if (_loginStateChange()) {
emitter(LoginEventChangeState());
}
emitter(LoginTypeChangeState());
}
///手机号输入
void _changePhoneNumber(PhoneNumChangeEvent event, Emitter<LoginState> emitter) async {
if(phoneNumController.text.isNotEmpty) {
if (!_canSendSms) {
_canSendSms = true;
emitter(SmsSendTypeChangeState());
}
if (_loginStateChange()) {
emitter(LoginEventChangeState());
}
} else {
if (_canSendSms) {
_canSendSms = false;
emitter(SmsSendTypeChangeState());
}
if (_loginStateChange()) {
emitter(LoginEventChangeState());
}
}
}
///验证码/密码输入变化
void _checkFiledChange(CheckFieldChangeEvent event,Emitter<LoginState> emitter) async {
if (_loginStateChange()) {
emitter(LoginEventChangeState());
}
}
///是否阅读协议
void _agreementTypeChange(AgreementChangeEvent event, Emitter<LoginState> emitter) async {
_agreement = !_agreement;
emitter(AgreementTypeChangeState());
if (_loginStateChange()) {
emitter(LoginEventChangeState());
}
}
///忘记密码
void _forgetPassword(ForgetPasswordEvent event, Emitter<LoginState> emitter) async {
}
///倒计时
void _countDownChange(CountDownEvent event, Emitter<LoginState> emitter) {
_sendSmsIng = !_sendSmsIng;
emitter(CountDownNumChangeState());
}
void _cancelTimer(CancelCountDownEvent event,Emitter<LoginState> emitter) {
}
///登陆状态判断
bool _loginStateChange() {
if (_agreement) {
if (phoneNumController.text.isNotEmpty && checkNumController.text.isNotEmpty) {
if (!_canLogin) {
_canLogin = true;
return true;
}
} else {
if (_canLogin) {
_canLogin = false;
return true;
}
}
} else {
if (_canLogin) {
_canLogin = false;
return true;
}
}
return false;
}
}