NSURL *url = [NSURL URLWithString:@"sms://15888888888"];
[[UIApplication sharedApplication]openURL:url];

#import <MessageUI/MessageUI.h>

#pragma mark - 代理方法
-(void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result
{
  [self dismissViewControllerAnimated:YES completion:nil];
  switch (result) {
    case MessageComposeResultSent:
      //信息传送成功
       
      break;
    case MessageComposeResultFailed:
      //信息传送失败
       
      break;
    case MessageComposeResultCancelled:
      //信息被用户取消传送
       
      break;
    default:
      break;
  }
}

#pragma mark - 发送短信方法
-(void)showMessageView:(NSArray *)phones title:(NSString *)title body:(NSString *)body
{
  if( [MFMessageComposeViewController canSendText] )
  {
    MFMessageComposeViewController * controller = [[MFMessageComposeViewController alloc] init];
    controller.recipients = phones;
    controller.navigationBar.tintColor = [UIColor redColor];
    controller.body = body;
    controller.messageComposeDelegate = self;
    [self presentViewController:controller animated:YES completion:nil];
    [[[[controller viewControllers] lastObject] navigationItem] setTitle:title];//修改短信界面标题
  }
  else
  {
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示信息"
                            message:@"该设备不支持短信功能"
                            delegate:nil
                       cancelButtonTitle:@"确定"
                       otherButtonTitles:nil, nil];
    [alert show];
  }
}