You must add the MessageUI.framework to your Xcode project Include an #import <MessageUI/MessageUI.h> in your header file Add these delegates to your header file MFMessageComposeViewControllerDelegate & UINavigationControllerDelegate In your IBAction method declare instance of MFMessageComposeViewController say messageInstance To check whether your device can send text use [MFMessageComposeViewController canSendText] in an if condition, it'll return Yes/No In the if condition do these: First set body for your messageInstance as: messageInstance.body = @"Hello from Shah"; Then decide the recipients for the message as: messageInstance.recipients = [NSArray arrayWithObjects:@"12345678", @"87654321", nil]; Set a delegate to your messageInstance as: messageInstance.messageComposeDelegate = self; In the last line do this: [self presentModalViewController:messageInstance animated:YES];

//使用名称和数字调用方法。

-(void)openMessageViewWithName:(NSString*)contactName withPhone:(NSString *)phone{

CTTelephonyNetworkInfo *networkInfo=[[CTTelephonyNetworkInfo alloc]init];

CTCarrier *carrier=networkInfo.subscriberCellularProvider;

NSString *Countrycode = carrier.isoCountryCode;

if ([Countrycode length]>0)     //Check If Sim Inserted
{

    [self sendSMS:msg recipientList:[NSMutableArray arrayWithObject:phone]];
}
else
{

    [AlertHelper showAlert:@"Message" withMessage:@"No sim card inserted"];
}

}

//发送消息的方法

- (void)sendSMS:(NSString *)bodyOfMessage recipientList:(NSMutableArray *)recipients{  
 MFMessageComposeViewController *controller1 = [[MFMessageComposeViewController alloc] init] ;
 controller1 = [[MFMessageComposeViewController alloc] init] ;
 if([MFMessageComposeViewController canSendText])
{
    controller1.body = bodyOfMessage;
    controller1.recipients = recipients;
    controller1.messageComposeDelegate = self;
    [self presentViewController:controller1 animated:YES completion:Nil];
 }
}

你可以使用这种方法:

[[UIApplication sharedApplication]openURL:[NSURL URLWithString:@"sms:MobileNumber"]]

iOS会自动从你的应用程序导航到消息应用程序的消息合成页面。由于URL的方案是从sms:开始的，这被标识为消息应用程序可以识别的类型，并启动它。

您可以使用sms:[目标电话号码]URL打开sms应用程序，但没有指示如何用文本预填充sms正文。

如果你想在你自己的应用程序中显示创建和发送消息，你需要使用MFMessageComposeViewController。

否则，您可以使用sharedApplication方法。

如果您愿意，您可以使用名为CTMessageCenter类的私有框架CoreTelephony。有一些发送短信的方法。