Question

我需要检索我的系统帐户的Facebook访问令牌，我在设置应用程序中设置。

我知道Social.framework（iOS6）知道我所有的FB帐户信息＆amp;我可以使用SLRequest类对Graph API执行API调用，就像在这篇文章http://blogs.captechconsulting.com/blog/eric-stroh/ios-6-tutorial-integrating-facebook-your-applications

中一样

但是，我的问题是 - 如何检索我的Facebook系统帐户的访问令牌？

我找到了Twitter https://dev.twitter.com/docs/ios/using-reverse-auth的解决方案，但你可以帮我解决Facebook

Answer 1

如果您已经知道如何设置帐户存储，请参阅此处的代码，了解如何获取访问令牌：

@property (strong, nonatomic) ACAccountStore *accountStore;
@property (strong, nonatomic) ACAccount *fbAccount;

...

@synthesize accountStore = _accountStore;
@synthesize fbAccount = _fbAccount;

...

// Initialize the account store
self.accountStore = [[ACAccountStore alloc] init];

// Get the Facebook account type for the access request
ACAccountType *fbAccountType = [self.accountStore
    accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];

// Request access to the Facebook account with the access info
[self.accountStore requestAccessToAccountsWithType:fbAccountType
                                           options:fbInfo
                                        completion:^(BOOL granted, NSError *error) {
    if (granted) {
        // If access granted, then get the Facebook account info
        NSArray *accounts = [self.accountStore
                             accountsWithAccountType:fbAccountType];
        self.fbAccount = [accounts lastObject];

        // Get the access token, could be used in other scenarios
        ACAccountCredential *fbCredential = [self.fbAccount credential];            
        NSString *accessToken = [fbCredential oauthToken];
        NSLog(@"Facebook Access Token: %@", accessToken);


        // Add code here to make an API request using the SLRequest class

    } else {
        NSLog(@"Access not granted");
    }
}];

从Social.framework获取Facebook访问令牌（iOS6）

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