iOS 在当前控制器中发送短信

- (void)showMessageViewWithTel:(NSString *)tel
{

    if( [MFMessageComposeViewController canSendText] ){

        MFMessageComposeViewController * controller = [[MFMessageComposeViewController alloc]init]; //autorelease];

        controller.recipients = [NSArray arrayWithObject:tel];
        controller.body = @"";
        controller.messageComposeDelegate = self;

        [self presentViewController:controller animated:YES completion:nil];

        [[[[controller viewControllers] lastObject] navigationItem] setTitle:@"测试短信"];//修改短信界面标题
    }else{

        [self alertWithTitle:@"提示信息" msg:@"设备没有短信功能"];
    }
}

//MFMessageComposeViewControllerDelegate
- (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result{

    [controller dismissViewControllerAnimated:NO completion:nil];//关键的一句   不能为YES

    switch ( result ) {

        case MessageComposeResultCancelled:

            [self alertWithTitle:@"提示信息" msg:@"发送取消"];
            break;
        case MessageComposeResultFailed:// send failed
            [self alertWithTitle:@"提示信息" msg:@"发送失败"];
            break;
        case MessageComposeResultSent:
            [self alertWithTitle:@"提示信息" msg:@"发送成功"];
            break;
        default:
            break;
    }
}

- (void) alertWithTitle:(NSString *)title msg:(NSString *)msg {

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title
                                                    message:msg
                                                   delegate:self
                                          cancelButtonTitle:nil
                                          otherButtonTitles:@"确定", nil];

    [alert show];

}