[iOS基础]关于Mail的一切

来源：互联网发布：sql将string转int 编辑：程序博客网时间：2024/05/17 06:47

使用

说道iOS Mail就应该提到MFMailComposeViewController以及MFMailComposeViewControllerDelegate
下面来看看如何使用该类：

//加入邮箱的框架#import <MessageUI/MFMailComposeViewController.h>#import <MessageUI/MessageUI.h> //添加委托@interface ExportViewController ()<MFMailComposeViewControllerDelegate>-(void)sendMail{    Class mailViewCon =  NSClassForString(MFMailComposeViewController);    if(!mailViewCon){        NSLog(@"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(![mailViewCon canSendMail]){        NSLog(@"用户没有设置邮件账户");        return;    }//初始化MailController    MFMailComposeViewController *mailViewCon = [[MFMailComposeViewController alloc] init];//依次设置收件人、抄送人、密送人、主题、内容、附件    [mailViewCon setToRecipients:@[@"123@qq.com"]];    [mailViewCon setCcRecipients:@[@"456@qq.com"]];    [mailViewCon setBccRecipients:@[@"789@qq.com"]];    [mailViewCon setSubject:@"hey body"];//参数1：MessageBody内容 参数2：是否HTML内容    [mailViewCon setMessageBody:@"110" isHTML:NO];//参数1：附件NSData 参数2：附件拓展名 参数3：附件名称    [mailViewCon addAttachmentData:[fileContent objectForKey:AttachFileData] mimeType:@"txt" fileName:[fileContent objectForKey:AttachFileNameStr]];//设置弹出展示效果    mailViewCon.modalPresentationStyle = UIModalPresentationPageSheet;    mailViewCon.modalTransitionStyle = UIModalTransitionStyleCoverVertical;//设置mailcomposedelegate    mailViewCon.mailComposeDelegate = self;//弹出Controller     [self presentViewController:mailViewCon animated:YES completion:nil];}//实现delegate的方法处理邮件发送结果-(void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error{    switch (result) {        case MFMailComposeResultSent:            break;        case MFMailComposeResultCancelled:            break;        case MFMailComposeResultFailed:            break;        case MFMailComposeResultSaved:            break;        default:            logWithError(self, @"这出错了！！");            break;    }    [controller dismissViewControllerAnimated:YES completion:nil];}

下面来看看其类的其他内容：

//邮件发送结果enum MFMailComposeResult {    MFMailComposeResultCancelled,    MFMailComposeResultSaved,    MFMailComposeResultSent,    MFMailComposeResultFailed};//邮件发送错误enum MFMailComposeErrorCode {    MFMailComposeErrorCodeSaveFailed,    MFMailComposeErrorCodeSendFailed};//是否可以发送+ (BOOL)canSendMail

获取系统邮件

待补充。

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