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。

添加MessageUI。框架并使用下面的代码

#import <MessageUI/MessageUI.h> 

然后:

if ([MFMessageComposeViewController canSendText]) {
  MFMessageComposeViewController *messageComposer =
  [[MFMessageComposeViewController alloc] init];
  NSString *message = @"Your Message here";
  [messageComposer setBody:message];
  messageComposer.messageComposeDelegate = self;
  [self presentViewController:messageComposer animated:YES completion:nil];
}

以及委托方法-

- (void)messageComposeViewController:(MFMessageComposeViewController *)controller
             didFinishWithResult:(MessageComposeResult)result {
      [self dismissViewControllerAnimated:YES completion:nil];
 }

- (void)sendSMS:(NSString *)bodyOfMessage recipientList:(NSArray *)recipients
{
    UIPasteboard *pasteboard = [UIPasteboard generalPasteboard];
    UIImage *ui =resultimg.image;
    pasteboard.image = ui;
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"sms:"]];
}

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

这将是最好和最简单的方法。

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];

你可以展示MFMessageComposeViewController，它可以发送短信，但是有用户提示(他点击发送按钮)。没有用户许可，不可能这样做。在iOS 11上，你可以做扩展，就像传入消息的过滤器，告诉iOS它是不是垃圾邮件。没有什么是短信不能做的