Flutter: password autofill

Flutter supports now autofill (password, email, username, etc.) ☑️ The merged pull request with an example: https://github.com/flutter/flutter/pull/52126

Example:

 @override
  Widget build(BuildContext context) {
    return AutofillGroup(
      child: Column(
        children: <Widget>[
          TextField(controller: username, autofillHints: [AutofillHints.username]),
          Checkbox(
            value: isNewUser,
            onChanged: (bool newValue) {
              setState(() { isNewUser = newValue; });
            },
          ),
          if (isNewUser) TextField(controller: newPassword, autofillHints: [AutofillHints.newPassword]),
          if (isNewUser) TextField(controller: repeatNewPassword, autofillHints: [AutofillHints.newPassword]),
          if (!isNewUser) TextField(controller: password, autofillHints: [AutofillHints.password]),
        ],
      ),
    );
  }

Auto-Fill is not yet supported in flutter out of the box. There are two issues i know of which are tracking this issue (although android related). You might want to subscribe/vote on those:

• https://github.com/flutter/flutter/issues/13015
• https://github.com/flutter/flutter/issues/14047

I fear it won't be easy to trigger this functionality via a 3rd party plugin though.

As for your question regarding secure storage: If you are using the flutter secure storage plugin which uses the keychain on iOS, it should be synced across devices via iCloud.