IOS/Objective-C:在SLComposer消息后关闭视图控制器

// 导入框架
#import <Social/Social.h>

// 创建SLComposeViewController实例
SLComposeViewController *composeViewController = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeTwitter];

// 设置要分享的内容
[composeViewController setInitialText:@"Hello, World!"];

// 弹出分享视图控制器
[self presentViewController:composeViewController animated:YES completion:nil];

// 发送完消息后关闭视图控制器
[composeViewController setCompletionHandler:^(SLComposeViewControllerResult result) {
    [self dismissViewControllerAnimated:YES completion:nil];
}];