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我需要知道在 openActiveSessionWithReadPermissions 执行期间用户何时未授予 Facebook 访问我的应用程序的权限。（未授予意味着在设置->Facebook->我的应用程序下将开关设置为“关闭”。）

这是未授予时的错误：

错误域=com.facebook.sdk 代码=2“操作无法完成。（com.facebook.sdk 错误 2。）”UserInfo=0x1fd46780 {com.facebook.sdk:ErrorLoginFailedReason=com.facebook.sdk:ErrorLoginFailedReason }

为了比较，这里是没有网络的错误：

错误域=com.facebook.sdk 代码=2“操作无法完成。（com.facebook.sdk 错误 2。）”UserInfo=0x1edf2eb0 {com.facebook.sdk:ErrorLoginFailedReason=com.facebook.sdk:ErrorLoginFailedReason , com.facebook.sdk:ErrorInnerErrorKey=错误域=NSURLErrorDomain 代码=-1009 "Internet 连接似乎处于脱机状态。" UserInfo=0x1ed47a20 {NSErrorFailingURLKey=https://api.facebook.com/method/auth.iosauthorizeapp, NSErrorFailingURLStringKey=https://api.facebook.com/method/auth.iosauthorizeapp, NSLocalizedDescription=互联网连接似乎处于离线状态。 }}

是否有一种万无一失的方法来检测何时未授予用户？我是否只在 UserInfo 字典中查找错误代码 2 和一个键/值对？

我希望 Facebook 给我们点BOOL granted赞ACAccountStoreRequestAccessCompletionHandler。

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2 回答 2

0

您可以使用以下代码检查权限：

- (void)checkForPermissions {
    // We will request the user's public profile and the user's birthday
    // These are the permissions we need:
    NSArray *permissionsNeeded = @[@"basic_info", @"email"];
    // Request the permissions the user currently has
    [FBRequestConnection startWithGraphPath:@"/me/permissions"
                          completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
                          //If there is error, handle it accordingly.

                          //Results contains all the permissions user has granted the app.
                          //If you do not have the desired permissions, reauthorize the app
                          // Ask for the missing permissions
                          //requestPermissions = array of permissions to be asked
                          [FBSession.activeSession
                           requestNewReadPermissions:requestPermissions
                           completionHandler:^(FBSession *session, NSError *error) {
                               //Handle the session object as per your requirements.
                           }];
                      }];
}

希望这可以帮助。

于 2014-05-22T13:09:08.753 回答
0

@peter-warbo：我没有找到好的解决方案。我正在使用这个：

[FBSession openActiveSessionWithReadPermissions:FACEBOOK_READ allowLoginUI:YES 
    completionHandler:^(FBSession *session, FBSessionState state, NSError *error) {

    // find error for not granted
    if(error && error.code == 2) {
        NSDictionary *userInfo = error.userInfo;
        if(userInfo && userInfo.count == 1) {
            [self fallbackLogin];
            return;
        }
    }
    [self sessionStateChanged:session state:state error:error];
}];

- (void)fallbackLogin {

    // use deprecated
    [FBSession openActiveSessionWithPermissions:FACEBOOK_READ allowLoginUI:YES
completionHandler:^(FBSession *session, FBSessionState state, NSError *error) {
          [self sessionStateChanged:session state:state error:error];
    }];   
}
于 2013-01-10T06:02:15.643 回答