如何在Flutter中将参数传递给动作 [英] How to pass parameters to action in Flutter

问题描述

我有这个动作

Future<void> signUpAction(Store<AppState> store) async {
  try {
    // ...
  } catch (e) {
    // ..
  }
}

我是这样派发的

store.dispatch(signUpAction);

现在，如果我想传递两个参数，我该怎么做?由于那里已经有一个参数.

Now, if I want to pass two paramters, how would I do that? Since there is already one parameter there.

我尝试过

Future<void> signUpAction(Store<AppState> store, email, password) async {
  try {
    // ...
  } catch (e) {
    // ..
  }
}

但是如果我愿意的话，然后在派遣上

but then on dispatching, if I do

store.dispatch(signUpAction("[e-mail]", "somEPa55word!"));

它说singUpAction需要3个参数，所以我不太清楚如何仅传递这两个参数

it says the singUpAction expects 3 parameters, so I don't know very well how to pass only these two

谢谢

推荐答案

dispatch方法需要特定的签名.如果您的方法没有确切的签名，则可以创建匿名函数即时匹配签名.

The dispatch method expects a specific signature. If your method does not have exactly that signature, you can make an anonymous function on the fly that matches the signature.

在这种情况下，由于您的方法不仅要占用商店，还要占用电子邮件和密码:

In this case, since your method takes not only the store, but also the email and password:

store.dispatch((x) => signUpAction(x, "[e-mail]", "somEPa55word!"));

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