IOS发送电子邮件

IOS发送电子邮件

简介
我们可以使用IOS设备中的电子邮件应用程序发送电子邮件。
实例步骤
1、创建一个简单的View based application
2、选择项目文件，然后选择目标，然后添加MessageUI.framework
3、在ViewController.xib中添加一个按钮，创建用于发送电子邮件的操作（action）
4、更新ViewController.h,如下所示
#import 
#import @interface ViewController : UIViewController
{
    MFMailComposeViewController *mailComposer;
}
-(IBAction)sendMail:(id)sender;
@end
5、如下所示，更新ViewController.m
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad{
    [super viewDidLoad];
   }
- (void)didReceiveMemoryWarning{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}
-(void)sendMail:(id)sender
{
    mailComposer = [[MFMailComposeViewController alloc]init];
    mailComposer.mailComposeDelegate = self;
    [mailComposer setSubject:@"Test mail"];
    [mailComposer setMessageBody:@"Testing message
     for the test mail" isHTML:NO];
    [self presentModalViewController:mailComposer animated:YES];
}
#pragma mark - mail compose delegate-(void)mailComposeController:(MFMailComposeViewController *)controller
  didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error{
   if (result)
 {
        NSLog(@"Result : %d",result);
    }
    if (error) {
        NSLog(@"Error : %@",error);
    }
    [self dismissModalViewControllerAnimated:YES];
}
@end
输出
当运行该应用程序，会看如下的输出结果

当点击"send email"发送按钮后，可以看到如下结果：

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