新浪微博

#import <Social/Social.h>
#import <ACCOUNTS/ACAccount.h>

- (IBAction)TouchFenXiangSina:(id)sender {
    if([SLComposeViewController isAvailableForServiceType:SLServiceTypeSinaWeibo])
    {
        // 首先判断服务器是否可以访问
        if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeSinaWeibo])
        {
            // 使用SLServiceTypeSinaWeibo来创建一个新浪微博view Controller
            SLComposeViewController *socialVC = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeSinaWeibo];
            // 写一个bolck，用于completionHandler的初始化
            SLComposeViewControllerCompletionHandler myBlock = ^(SLComposeViewControllerResult result) {
                if (result == SLComposeViewControllerResultCancelled) {
                    NSLog(@"Action Cancelled");
                } else
                {
                    NSLog(@"done\\");
                }
                [socialVC dismissViewControllerAnimated:YES completion:Nil];
            };
            // 初始化completionHandler，当post结束之后（无论是done还是cancell）该blog都会被调用
            socialVC.completionHandler = myBlock;
            [socialVC setInitialText:TieZiDetail->topic_content];
            [self presentViewController:socialVC animated:YES completion:Nil];
        }
    }
    else
    {
        UIAlertView *alert = [[UIAlertView alloc]initWithTitle:nil message:@"请在系统设置中登陆新浪微博账号" delegate:self cancelButtonTitle:@"确定" otherButtonTitles: nil];
        [alert show];
    }
}