MFMailComposeViewController发送邮件的实例

iPhone API已经提供了系统写邮件界面的接口,使用MFMailComposeViewController，用来显示界面.

项目中需要添加MessageUi.framework。头文件加入MFMailComposeViewControllerDelegate。#import <MessageUI/MessageUI.h>

sendMailViewController.m文件的实现：

- (void)viewDidLoad

{

UIButton *button = [UIButton buttonWithType: UIButtonTypeRoundedRect];

button.frame = CGRectMake(0, 40, 320, 50);

[button setTitle: @"Mail" forState: UIControlStateNormal];

[button addTarget: self action: @selector(sendEMail) forControlEvents: UIControlEventTouchUpInside];

[self.view addSubview: button];

}

- (void) alertWithTitle: (NSString *)_title_ msg: (NSString *)msg

{

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:_title_

message:msg

delegate:nil

cancelButtonTitle:@"确定"

otherButtonTitles:nil];

[alert show];

[alert release];

}

//点击按钮后，触发这个方法

-(void)sendEMail

{

Class mailClass = (NSClassFromString(@"MFMailComposeViewController"));

if (mailClass != nil)

{

if ([mailClass canSendMail])

{

[self displayComposerSheet];

}

else

{

[self launchMailAppOnDevice];

}

}

else

{

[self launchMailAppOnDevice];

}

}

//可以发送邮件的话

-(void)displayComposerSheet

{

MFMailComposeViewController *mailPicker = [[MFMailComposeViewController alloc] init];

mailPicker.mailComposeDelegate = self;

//设置主题

[mailPicker setSubject: @"eMail主题"];

// 添加发送者

NSArray *toRecipients = [NSArray arrayWithObject: @"first@example.com"];

//NSArray *ccRecipients = [NSArray arrayWithObjects:@"second@example.com", @"third@example.com", nil];

//NSArray *bccRecipients = [NSArray arrayWithObject:@"fourth@example.com", nil];

[mailPicker setToRecipients: toRecipients];

//[picker setCcRecipients:ccRecipients];

//[picker setBccRecipients:bccRecipients];

// 添加图片

UIImage *addPic = [UIImage imageNamed: @"123.jpg"];

NSData *imageData = UIImagePNGRepresentation(addPic); // png

// NSData *imageData = UIImageJPEGRepresentation(addPic, 1); // jpeg

[mailPicker addAttachmentData: imageData mimeType: @"" fileName: @"123.jpg"];

NSString *emailBody = @"eMail 正文";

[mailPicker setMessageBody:emailBody isHTML:YES];

[self presentModalViewController: mailPicker animated:YES];

[mailPicker release];

}

-(void)launchMailAppOnDevice

{

NSString *recipients = @"mailto:first@example.com&subject=my email!";

//@"mailto:first@example.com?cc=second@example.com,third@example.com&subject=my email!";

NSString *body = @"&body=email body!";

NSString *email = [NSString stringWithFormat:@"%@%@", recipients, body];

email = [email stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding];

[[UIApplication sharedApplication] openURL: [NSURL URLWithString:email]];

}

- (void)mailComposeController:(MFMailComposeViewController *)controller

didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error

{

NSString *msg;

switch (result)

{

case MFMailComposeResultCancelled:

msg = @"邮件发送取消";

break;

case MFMailComposeResultSaved:

msg = @"邮件保存成功";

[self alertWithTitle:nil msg:msg];

break;

case MFMailComposeResultSent:

msg = @"邮件发送成功";

[self alertWithTitle:nil msg:msg];

break;

case MFMailComposeResultFailed:

msg = @"邮件发送失败";

[self alertWithTitle:nil msg:msg];

break;

default:

break;

}

[self dismissModalViewControllerAnimated:YES];

}