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Re: Email editor view
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Re: Email editor view


  • Subject: Re: Email editor view
  • From: Jens Alfke <email@hidden>
  • Date: Fri, 26 Jun 2015 14:15:44 -0700

> On Jun 26, 2015, at 1:45 PM, Nick <email@hidden> wrote:
>
> Would experienced developers suggest is the best way to have an email
> editor view, similar to what Apple Mail app has? What would be the best way
> to give the users a similar to Apple Mail experience?

You’ll need a WebView if you want to handle anything other than plain-text messages, since most rich-text email is HTML. (The text/enriched format used to be common back in the day, but I think all the current clients send HTML now.)

The Mail composition editor is also a WebView, but with the contentEditable property enabled.

> I am trying to let the user edit the message, display attachments like
> pdf's and images.

Inline images are handled as HTML <img> tags. The trick is that the URL in the href attribute usually refers to an image stored in another MIME part of the email message. This can be a relative link from the HTML body, or an explicit link to a MIME part using (IIRC) a “cid:” URL.

It’s also possible to have plain-text emails with inline images; in this case the message is multipart and contains a mixture of text and image parts.

I don’t know how inline PDFs are handled, since HTML doesn’t have a tag to display them.

—Jens

PS: I don’t want to discourage you, but writing a full-featured email client is a _very_ large and complex task. In addition to the message display and composition, you’re also going to have to deal with MIME parsing/generation, the IMAP protocol (and maybe Exchange), database storage that can handle the volume of email people keep around, full-text search, junk mail detection, a rule engine… (I used to work on Apple’s Mail team briefly, a long time ago.)
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