iOS调用系统发短信功能详解

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iOS调用系统的发短信功能可以分为两种：1，程序外调用系统发短信。2，程序内调用系统发短信。第二种的好处是用户发短信之后还可以回到app。这对app来说非常重要。

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：

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[[UIApplication sharedApplication]openURL:[NSURL URLWithString:@sms://13888888888]];

程序内调用系统发短信

1）导入MessageUI.framework，并引入头文件：

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#import<messageui messageui.h=""></messageui>

2）实现代理方法MFMessageComposeViewControllerDelegate

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  -(void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result
{
    [self dismissViewControllerAnimated:YES completion:nil];
    switch(result) {
        caseMessageComposeResultSent:
            //信息传送成功
 
            break;
        caseMessageComposeResultFailed:
            //信息传送失败
 
            break;
        caseMessageComposeResultCancelled:
            //信息被用户取消传送
 
            break;
        default:
            break;
    }
}

3）发送短信

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  -(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];
    }
}

参数phones：发短信的手机号码的数组，数组中是一个即单发,多个即群发。

4）调用发短信的方法

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[self showMessageView:[NSArray arrayWithObjects:@13888888888,@13999999999, nil] title:@test body:@你是土豪么，么么哒];

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