iOS实现发送电子邮件的方法很简单，首先导入MessageUI.framework框架，然后代码如下：

1 #import "RPViewController.h" 2  3 //添加邮件头文件 4 #import 
     
       5  6 @interface RPViewController () 
      
        7  8 @end 9 10 @implementation RPViewController11 12 - (void)viewDidLoad13 {14     [super viewDidLoad];15     // Do any additional setup after loading the view, typically from a nib.16 }17 18 - (void)didReceiveMemoryWarning19 {20     [super didReceiveMemoryWarning];21     // Dispose of any resources that can be recreated.22 }23 24 - (IBAction)click:(id)sender {25     if ([MFMailComposeViewController canSendMail]) {26         MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];27         picker.mailComposeDelegate = self;28         29         //在这里可以设定邮件的默认标题/内容，也可以设置收件人等30         [picker setSubject:@"标题"];31         NSString *emailBody = @"邮件内容";32         33         [picker setMessageBody:emailBody isHTML:NO];34         [self presentViewController:picker animated:YES completion:nil];35 //      [picker release];36     }37     else {38         //无法发送邮件，在这里给用户提示39     }40 }41 42 #pragma mark 邮件代理方法43 - (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error {44     switch (result) {45         case MFMailComposeResultCancelled:46             //取消发送47             break;48         case MFMailComposeResultSaved:49             //保存草稿50             break;51         case MFMailComposeResultSent:52             //发送成功53             break;54         case MFMailComposeResultFailed:55             //发送失败56             break;57         default:58             break;59     }60     61     [self dismissViewControllerAnimated:YES completion:nil];62 }63 64 @end
      
     

首先导入邮件的头文件，之后创建一个发送邮件用的控制器，设置默认参数，然后弹出这个控制器。

令当前控制器充当邮件控制器的代理，这样一来在邮件相关事件执行之后，就能给出一些用户提示了，也要在这里收起邮件视图。

 

发短信的道理完全一样，只是控制器换成了MFMessageComposeViewController，代理换成了MFMessageComposeViewControllerDelegate，配置代码如下：

1     if ([MFMessageComposeViewController canSendText]) {2         MFMessageComposeViewController *message = [[MFMessageComposeViewController alloc] init];3         message.messageComposeDelegate = self;4         5         message.recipients = @[@"电话号码"];6         message.body = @"内容";7         8         [self presentViewController:message animated:YES completion:nil];9     }