iOS发送邮件

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];

}