我只想使用旧密码和新密码，而无需在应用程序中发送电子邮件重置链接，即可使用swift2中的firebase更改密码

在android中，我使用重新验证，但在swift中，我可以使用哪种方式？例如，在android中，像这样

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根据Firebase文档，这应该可以：

let user = FIRAuth.auth()?.currentUser
var credential: FIRAuthCredential

let user = FIRAuth.auth()?.currentUser
var credential: FIRAuthCredential

// Prompt the user to re-provide their sign-in credentials

user?.reauthenticate(with: credential) { error in
  if let error = error {
    // An error happened.
  } else {
    // User re-authenticated.
  }
}

以下是我的消息来源：

let user = FIRAuth.auth()?.currentUser
var credential: FIRAuthCredential

let user = FIRAuth.auth()?.currentUser
var credential: FIRAuthCredential

// Prompt the user to re-provide their sign-in credentials

user?.reauthenticate(with: credential) { error in
  if let error = error {
    // An error happened.
  } else {
    // User re-authenticated.
  }
}