Social.framework 不适用于 Xcode 6.3.2

Question

作为一个新手，我想尝试使用 Objective-c 的 Facebook 和 Twitter Post

所以我添加了 2 个按钮，添加了动作，还添加了社交框架。当我运行代码并单击 Tweet 或 Facebook 按钮时，什么都没有发生，我是否遗漏了什么。我正在模拟器上对其进行测试，这有什么不同吗？

这是我的头文件 SocialSharingViewController.h

#import <UIKit/UIKit.h>

@interface SocialSharingViewController : UIViewController

- (IBAction)postToTwitter:(id)sender;
- (IBAction)postToFacebook:(id)sender;

@end

这是我的 .m 文件 SocialSharingViewController.m

#import "SocialSharingViewController.h"
#import <Social/Social.h>

@interface SocialSharingViewController ()

@end

@implementation SocialSharingViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (IBAction)postToTwitter:(id)sender {
    if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeTwitter])
    {
        SLComposeViewController *tweetSheet = [SLComposeViewController
                                               composeViewControllerForServiceType:SLServiceTypeTwitter];
        [tweetSheet setInitialText:@"Great fun to learn iOS programming"];
        [self presentViewController:tweetSheet animated:YES completion:nil];
    }
}

- (IBAction)postToFacebook:(id)sender {
    NSLog(@"clicked facebook button");
    if([SLComposeViewController isAvailableForServiceType:SLServiceTypeFacebook]) {
        SLComposeViewController *controller = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook];

        [controller setInitialText:@"First post from my iPhone app"];
        [self presentViewController:controller animated:YES completion:Nil];
    }
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


@end

Answer 1

想到几件事：

• 您是否将 .xib 中的按钮连接到代码中的 IBAction 方法？
• -isAvailableForServiceType: 是否合法返回 NO，阻止它们显示？