利用MessageUI发送邮件

根据http://luoyl.info/blog/2012/04/two-way-to-send-email-in-ios/ 总结

1，首先加载 MessageUI控件 ，在.h文件中导入，并且引入协议

#import <UIKit/UIKit.h>
#import <MessageUI/MFMailComposeViewController.h>
//导入控件

@interface AboutViewController : UIViewController<MFMailComposeViewControllerDelegate>//引入这个
- (IBAction)email:(id)sender;
@end

2，在.m文件中声明所需的两个方法

#import "AboutViewController.h"
@interface AboutViewController ()
- (void)displayMailPicker;////调出邮件发送窗口
- (void)alertWithMessage:(NSString*)message;//提示消息
@end

3，写好方法

#pragma mark - 在应用内发送邮件
//激活邮件功能
- (void)sendMailInApp
{
    Class mailClass = (NSClassFromString(@"MFMailComposeViewController"));
    if (!mailClass) {
        [self alertWithMessage:@"当前系统版本不支持应用内发送邮件功能，您可以使用mailto方法代替"];
        return;
    }
    if (![mailClass canSendMail]) {
        [self alertWithMessage:@"用户没有设置邮件账户"];
        return;
    }
    [self displayMailPicker];
}

//调出邮件发送窗口
- (void)displayMailPicker
{
    MFMailComposeViewController *mailPicker = [[MFMailComposeViewController alloc] init];
    mailPicker.mailComposeDelegate = self;

    //设置主题
    [mailPicker setSubject: @"冷笑话反馈"];
    //添加收件人
    NSArray *toRecipients = [NSArray arrayWithObject: @"lengxiaohua@me.com"];
    [mailPicker setToRecipients: toRecipients];
//    //添加抄送
//    NSArray *ccRecipients = [NSArray arrayWithObjects:@"second@example.com", @"third@example.com", nil];
//    [mailPicker setCcRecipients:ccRecipients];
//    //添加密送
//    NSArray *bccRecipients = [NSArray arrayWithObjects:@"fourth@example.com", nil];
//    [mailPicker setBccRecipients:bccRecipients];

    //    // 添加一张图片
    //    UIImage *addPic = [UIImage imageNamed: @"Icon@2x.png"];
    //    NSData *imageData = UIImagePNGRepresentation(addPic);            // png
    //    //关于mimeType：http://www.iana.org/assignments/media-types/index.html
    //    [mailPicker addAttachmentData: imageData mimeType: @"" fileName: @"Icon.png"];
    //
    //    //添加一个pdf附件
    //    NSString *file = [self fullBundlePathFromRelativePath:@"高质量C++编程指南.pdf"];
    //    NSData *pdf = [NSData dataWithContentsOfFile:file];
    //    [mailPicker addAttachmentData: pdf mimeType: @"" fileName: @"高质量C++编程指南.pdf"];
    //
    NSString *emailBody = @"<font color='red'>内容：</font> ";
    [mailPicker setMessageBody:emailBody isHTML:YES];
    [self presentModalViewController: mailPicker animated:YES];
    [mailPicker release];  
}


#pragma mark - 实现 MFMailComposeViewControllerDelegate
- (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error
{
    //关闭邮件发送窗口
    [self dismissModalViewControllerAnimated:YES];
    NSString *msg;
    switch (result) {
        case MFMailComposeResultCancelled:
            msg = @"用户取消编辑邮件";
            break;
        case MFMailComposeResultSaved:
            msg = @"用户成功保存邮件";
            break;
        case MFMailComposeResultSent:
            msg = @"用户点击发送，将邮件放到队列中，还没发送";
            break;
        case MFMailComposeResultFailed:
            msg = @"用户试图保存或者发送邮件失败";
            break;
        default:
            msg = @"";
            break;
    }
    [self alertWithMessage:msg];
}

- (void)alertWithMessage:(NSString*)message
{
    UIAlertView *alert = [[UIAlertView alloc]initWithTitle:nil
                                                   message:message
                                                  delegate:nil
                                         cancelButtonTitle:@"确定"
                                         otherButtonTitles:nil, nil];
    ;
    ;
}

4，在所需要弹出邮件层的按钮添加上述方法

- (IBAction)email:(id)sender {
    [self sendMailInApp];

}

整个.m文件的内容如下：

//
//  AboutViewController.m
// Created by xxx
//
//

#import "AboutViewController.h"

@interface AboutViewController ()
- (void)displayMailPicker;////调出邮件发送窗口
- (void)alertWithMessage:(NSString*)message;//提示消息
@end

@implementation AboutViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];


    // Do any additional setup after loading the view from its nib.
}

- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

- (IBAction)email:(id)sender {
    [self sendMailInApp];

}

#pragma mark - 在应用内发送邮件
//激活邮件功能
- (void)sendMailInApp
{
    Class mailClass = (NSClassFromString(@"MFMailComposeViewController"));
    if (!mailClass) {
        [self alertWithMessage:@"当前系统版本不支持应用内发送邮件功能，您可以使用mailto方法代替"];
        return;
    }
    if (![mailClass canSendMail]) {
        [self alertWithMessage:@"用户没有设置邮件账户"];
        return;
    }
    [self displayMailPicker];
}

//调出邮件发送窗口
- (void)displayMailPicker
{
    MFMailComposeViewController *mailPicker = [[MFMailComposeViewController alloc] init];
    mailPicker.mailComposeDelegate = self;

    //设置主题
    [mailPicker setSubject: @"冷笑话反馈"];
    //添加收件人
    NSArray *toRecipients = [NSArray arrayWithObject: @"lengxiaohua@me.com"];
    [mailPicker setToRecipients: toRecipients];
//    //添加抄送
//    NSArray *ccRecipients = [NSArray arrayWithObjects:@"second@example.com", @"third@example.com", nil];
//    [mailPicker setCcRecipients:ccRecipients];
//    //添加密送
//    NSArray *bccRecipients = [NSArray arrayWithObjects:@"fourth@example.com", nil];
//    [mailPicker setBccRecipients:bccRecipients];

    //    // 添加一张图片
    //    UIImage *addPic = [UIImage imageNamed: @"Icon@2x.png"];
    //    NSData *imageData = UIImagePNGRepresentation(addPic);            // png
    //    //关于mimeType：http://www.iana.org/assignments/media-types/index.html
    //    [mailPicker addAttachmentData: imageData mimeType: @"" fileName: @"Icon.png"];
    //
    //    //添加一个pdf附件
    //    NSString *file = [self fullBundlePathFromRelativePath:@"高质量C++编程指南.pdf"];
    //    NSData *pdf = [NSData dataWithContentsOfFile:file];
    //    [mailPicker addAttachmentData: pdf mimeType: @"" fileName: @"高质量C++编程指南.pdf"];
    //
    NSString *emailBody = @"<font color='red'>内容：</font> ";
    [mailPicker setMessageBody:emailBody isHTML:YES];
    [self presentModalViewController: mailPicker animated:YES];
    [mailPicker release];  
}


#pragma mark - 实现 MFMailComposeViewControllerDelegate
- (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error
{
    //关闭邮件发送窗口
    [self dismissModalViewControllerAnimated:YES];
    NSString *msg;
    switch (result) {
        case MFMailComposeResultCancelled:
            msg = @"用户取消编辑邮件";
            break;
        case MFMailComposeResultSaved:
            msg = @"用户成功保存邮件";
            break;
        case MFMailComposeResultSent:
            msg = @"用户点击发送，将邮件放到队列中，还没发送";
            break;
        case MFMailComposeResultFailed:
            msg = @"用户试图保存或者发送邮件失败";
            break;
        default:
            msg = @"";
            break;
    }
    [self alertWithMessage:msg];
}

- (void)alertWithMessage:(NSString*)message
{
    UIAlertView *alert = [[UIAlertView alloc]initWithTitle:nil
                                                   message:message
                                                  delegate:nil
                                         cancelButtonTitle:@"确定"
                                         otherButtonTitles:nil, nil];
    ;
    ;
}



- (void)dealloc {
    [super dealloc];
}
@end

原文链接: https://www.cnblogs.com/lostinthenslog/archive/2012/09/20/2695539.html

欢迎关注

微信关注下方公众号，第一时间获取干货硬货；公众号内回复【pdf】免费获取数百本计算机经典书籍