Sending a file as an attachment via email from an iOS app. Add to a ViewController subclass

sendFileFromDocumentFolderViaEmail.m

// NOTE YOU MUST ADD THE FRAMEWORK 'MessageUI' to your project.

// MyViewController.h
//-------------------

#import <MessageUI/MessageUI.h>

@interface MyViewController : UIViewController <MFMailComposeViewControllerDelegate> 

// MyViewController.m
//-------------------

- (IBAction)sendFileFromDocumentFolderViaEmail:(id) sender {

	// get date as a string
	NSDateFormatter *dateFormat = [[[NSDateFormatter alloc] init] autorelease];
	[dateFormat setDateFormat:@"dd:MM:yyyy"];
	NSDate *now = [NSDate date];
	NSString* timeString = [dateFormat stringFromDate:now];	


	//NSArray *array = [[NSArray alloc] initWithObjects:@"myemail@gmail.com", nil];
	MFMailComposeViewController *controller = [[MFMailComposeViewController alloc] init];
	controller.mailComposeDelegate = self;
	[controller setSubject:@"A File Sent By Email"];
	[controller setMessageBody:@"Here's a file" isHTML:NO];

        // Get the documents folder
	NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
	NSString *documentsDirectory = [paths objectAtIndex:0];
	NSString *logPath = [documentsDirectory stringByAppendingPathComponent:@"console.log"];

	NSData* file = [NSData dataWithContentsOfFile:logPath];
	
	NSString* filename = [timeString stringByAppendingString:@"-log.txt"];

	[controller addAttachmentData:file mimeType:@"text/plain" fileName:filename];

	[self presentModalViewController:controller animated:YES];
	[controller release];
}

- (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error {
	[self becomeFirstResponder];
	[self dismissModalViewControllerAnimated:YES];
}