What: UIActivity subclasses for direct customization of MessageUI controllers.
Why: UIActivity is an awesome API for sharing content with built-in iOS services. It's really easy to share via email and text message with the built-in activities, but for one really fatal flaw: Apple's API doesn't allow for customizing content specific to the built-in activities. Take MFMailComposeViewController: incredibly useful, except that there's no API for setting the subject and adding attachments. Lame. Another example: The text you put on there for a Tweet might be different from the text you put into a text message. But there's no API to be able to specify special text for the text message. Lame.
How: Add MessageUI.framework to your project, then instantiate a WHMailActivityItem with a selection handler, using it to populate the contents of a MFMailComposeViewController or MFMessageComposeViewController:
NSMutableArray *activityItems = [NSMutableArray array];
// For Mail Messages
NSString *htmlBody = @"<html><body><h1>Customized body</h1></body></html>";
[activityItems addObject:[WHMailActivityItem mailActivityItemWithSelectionHandler:^(MFMailComposeViewController *mailController) {
[mailController setSubject:@"Hey it's a subject!"];
[mailController setMessageBody:htmlBody isHTML:YES];
[mailController addAttachmentData:[htmlBody dataUsingEncoding:NSUTF8StringEncoding]
mimeType:@"text/html"
fileName:@"Awesome Attachment.html"];
}]];
// For texting
[activityItems addObject:[WHTextActivityItem textActivityItemWithSelectionHandler:^(MFMessageComposeViewController *messageController) {
[messageController setBody:@"My super awesome message for texting only!"];
}]];
NSArray *activities = (@[
[[WHMailActivity alloc] init],
[[WHTextActivity alloc] init] // keep in mind that texting is broken on the simulator...
]);
UIActivityViewController *activityController = [[UIActivityViewController alloc] initWithActivityItems:activityItems
applicationActivities:activities];
// turn off Apple's activities
activityController.excludedActivityTypes = (@[
UIActivityTypeMail,
UIActivityTypeMessage
]);
// let 'er rip!
[self presentViewController:activityController animated:YES completion:NULL];
Standard BSD License.
Copyright (c) 2013, Wayne Hartman All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
- Neither the name of Wayne Hartman nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WAYNE HARTMAN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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