在飞镖列表中列出

时间:2019-04-08 11:25:05

标签: dart flutter

我想通过流发送加密密码

我试图先将其更改为uft8,然后再将其加密为md5,以进行发送。不幸的是,我得到的只是错误 'BehaviorSubject'不是'stream

的'Stream'类型的子类型
StreamBuilder password() {
    return StreamBuilder(
        stream: bloc.password,
        builder: (context, snapshot) => TextField(
              onChanged: (s) => bloc.passwordChanged
                  .add(md5.convert(utf8.encode(s))),
          obscureText: true,
            ));
  }

class Bloc extends Object with Validator {

  final _passwordController = BehaviorSubject();

  StreamSink get passwordChanged => _passwordController.sink;

  Stream get password =>
      _passwordController.stream.transform(passwordValidator);

}

 var passwordValidator = StreamTransformer<String, String>.fromHandlers(
      handleData: (password, sink) {
    if (password.isNotEmpty) {
      verification from server
      sink.add(password);
    } else {
      sink.addError("Password not given");
    }
  });

是否有可能将此列表作为单个参数使用,所以我不会因使用不同类型的错误而出错,还是必须创建不同类型的流?

0 个答案:

没有答案