iOS 调用系统发短信的例子

一、程序外调用系统发短信

这个方法其实很简单，直接调用openURL即可：

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

二、程序内调用系统发短信

这种方法有一个好处就是用户发短信之后还可以回到App.
首先要导入MessageUI.framework，并引入头文件：

#import

然后要遵循代理MFMessageComposeViewControllerDelegate，并实现代理方法。

#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;
    }
}

发送短信方法实现

#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];
    }
}

最后，调用发送短信的方法

[self showMessageView:[NSArray arrayWithObjects:@"15888888888",@"12399999999", nil] title:@"test" body:@"这是测试用短信，勿回复！"];