May 2011
Beginner
834 pages
25h 19m
English
Content preview from Programming iOS 4Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 33. Mail
Your app can present interface allowing the user to edit and send a mail message (and, starting in iOS 4, an SMS message). Two view controller classes are provided by the Message UI framework; your app will link to MessageUI.framework and import <MessageUI/MessageUI.h>. The classes are:
- MFMailComposeViewController
- Allows composition and sending of a mail message.
- MFMessageComposeViewController
- Allows composition and sending of an SMS message.
Mail Message
The MFMailComposeViewController class, a UINavigationController, allows the user to edit a mail message. The user can attempt to send the message there and then or can cancel but save a draft, or can cancel completely. Before using this class to present a view, call canSendMail; if the result is NO, go no further. A negative result means that the device is not configured for sending mail. A positive result does not mean that the device is connected to the network and can send mail right now, only that sending mail is generally possible with this device.
To use MFMailComposeViewController, instantiate it, provide a mailComposeDelegate (not delegate), and configure the message to any desired extent. The user can alter your preset configurations. Configuration methods are:
-
setSubject: -
setToRecipients: -
setCcRecipients: -
setBccRecipients: -
setMessageBody:isHTML: -
addAttachmentData:mimeType:fileName:
The delegate method mailComposeController:didFinishWithResult:error: is called with the user’s final action, which ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.