How to add attachment to outlook app in IOS in email from ionic

I am using emailComposer to implement a actions such as opening outlook app from my app with a default email having attachment on it. However the following code can only set attachment on Android, when I run it on IOS system, the the email will not having attachment shown.

const email = {
app:‘outlook’,
to: “xxx”
attachments: [“xxx”, “xxx”]
subject: “”,
body: ‘’,
isHtml: true,
};

Is there anyone know if there are any way can open outllook app with email template that having attachment on it on IOS system?