分享到短信内容 使用 MFMessageComposeViewC

//1-头部

#import <MessageUI/MessageUI.h>
@interface ILShareViewController()<MFMessageComposeViewControllerDelegate>
@end

//2-点击分享部分

 MFMessageComposeViewController *vc = [[MFMessageComposeViewController alloc] init];
 // 设置短信内容
 vc.body = @"吃饭了没？";
 // 设置收件人列表
 vc.recipients = @[@"10010", @"02010010"];
// 设置代理
vc.messageComposeDelegate = self;
// 显示控制器
[self presentViewController:vc animated:YES completion:nil];


//发送短信
        MFMessageComposeViewController *messageComposeViewController = [[MFMessageComposeViewController alloc] init];
 // 设置短信内容
        messageComposeViewController.recipients = @[@"131****6666"];
        messageComposeViewController.messageComposeDelegate = self;

        NSString *body = @"http://www.apple.com/iphone\n我是且行且珍惜_iOS，欢迎关注我！";
        messageComposeViewController.body = body;
        
  // 添加图片
        [messageComposeViewController addAttachmentData:UIImageJPEGRepresentation(imageToShare, 1.0) typeIdentifier:@"image/png" filename:@"wang.png"];
//        if([MFMessageComposeViewController canSendSubject]){
//                //设置主题
//            messageComposeViewController.subject = @"https://github.com/wslcmk";
//        }
        
        
        if ([MFMessageComposeViewController canSendText]) {
            [self presentViewController:messageComposeViewController animated:YES completion:nil];
        }

//3-代理

- (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result
{
    // 关闭短信界面
    [controller dismissViewControllerAnimated:YES completion:nil];
    
    if (result == MessageComposeResultCancelled) {
        NSLog(@"取消发送");
    } else if (result == MessageComposeResultSent) {
        NSLog(@"已经发出");
    } else {
        NSLog(@"发送失败");
    }
}