1.导入库文件:MessageUI.framework
2.引入头文件
3.实现代理<MFMailComposeViewControllerDelegate> 和 <UINavigationControllerDelegate>
@代码示例:
代码语言：javascript复制 - (void)didClickSendEmailButtonAction{
if ([MFMailComposeViewController canSendMail] == YES) {
MFMailComposeViewController *mailVC = [[MFMailComposeViewController alloc] init];
// 设置代理(与以往代理不同,不是"delegate",千万不能忘记呀,代理有3步)
mailVC.mailComposeDelegate = self;
// 收件人
NSArray *sendToPerson = @[@"humingtao2014@gmail.com"];
[mailVC setToRecipients:sendToPerson];
// 抄送
NSArray *copyToPerson = @[@"humingtao2013@126.com"];
[mailVC setCcRecipients:copyToPerson];
// 密送
NSArray *secretToPerson = @[@"563821250@qq.com"];
[mailVC setBccRecipients:secretToPerson];
// 主题
[mailVC setSubject:@"hello world"];
[self presentViewController:mailVC animated:YES completion:nil];
[mailVC setMessageBody:@"魑魅魍魉,哈哈呵呵嘿嘿霍霍" isHTML:NO];
}else{
NSLog(@"此设备不支持邮件发送");
}
}
- (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error{
switch (result) {
case MFMailComposeResultCancelled:
NSLog(@"取消发送");
break;
case MFMailComposeResultFailed:
NSLog(@"发送失败");
break;
case MFMailComposeResultSaved:
NSLog(@"保存草稿文件");
break;
case MFMailComposeResultSent:
NSLog(@"发送成功");
break;
default:
break;
}
[self dismissViewControllerAnimated:YES completion:nil];
}
// 系统发送,模拟器不支持,要用真机测试
- (void)didClickSendSystemEmailButtonAction{
NSURL *url = [NSURL URLWithString:@"humingtao2014@gmail.com"];
if ([[UIApplication sharedApplication] canOpenURL:url] == YES) {
[[UIApplication sharedApplication] openURL:url];
}else{
NSLog(@"此设备不支持");
}
} </pre> 
