我有这个应用程序，我用于在Facebook上发布，我目前在一些iOS 6.0设备上发布时遇到了困难。我只使用facebook SDK 3.1并试图发布动作。以下是我在类中用来启动读取权限的代码。
对于访问我使用以下代码。
// CALLING THIS CODE BLOCK IN ONE BUTTON ACTION.
if (FBSession.activeSession.isOpen)
{
[self pickaChoice];
}
else
{
[FBSession openActiveSessionWithPublishPermissions:[NSArray arrayWithObjects:@"publish_actions", nil]
defaultAudience:FBSessionDefaultAudienceEveryone
allowLoginUI:YES
completionHandler:
^(FBSession *session,
FBSessionState state, NSError *error) {
[self sessionStateChanged:session state:state error:error];
}];
}
- (void)sessionStateChanged:(FBSession *)session
state:(FBSessionState) state
error:(NSError *)error
{
switch (state)
{
case FBSessionStateOpen:
[FBSession setActiveSession:session];
[self pickaChoice];
break;
case FBSessionStateClosed:
case FBSessionStateClosedLoginFailed:
// Once the user has logged in, we want them to
// ...
[FBSession.activeSession closeAndClearTokenInformation];
break;
default:
break;
}
if (error) {
NSString* message = [NSString stringWithFormat:@"You have disallowed application to post on your behalf."];
UIAlertView *alertView = [[UIAlertView alloc]
initWithTitle:@"Error"
message:message
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alertView show];
[FBSession.activeSession closeAndClearTokenInformation];
}
}
-(void)pickaChoice
{
/* Just a class to select message and then retrieve the message in the next function
-(void)didSelectaPhraseToPost:(NSString *)message */
FBPublishViewController *fbPublishViewController = [[FBPublishViewController alloc] initWithNibName:@"FBPublishViewController"
bundle:[NSBundle mainBundle]];
fbPublishViewController.selectionDelegate = self;
[self presentViewController:fbPublishViewController
animated:YES
completion:^(){
//nil
}];
}
-(void)didSelectaPhraseToPost:(NSString *)message
{
// Selecting a message from a class and retrieving here. This is the message to post on the feed.
[self publishMessage:message];
}
- (void) performPublishAction:(void (^)(void)) action
{
if ([FBSession.activeSession.permissions indexOfObject:@"publish_actions"] == NSNotFound) {
[FBSession.activeSession reauthorizeWithPublishPermissions:[NSArray arrayWithObject:@"publish_actions"]
defaultAudience:FBSessionDefaultAudienceFriends
completionHandler:^(FBSession *session, NSError *error) {
if (!error) {
action();
}
//For this example, ignore errors (such as if user cancels).
}];
} else {
action();
}
}
- (void)publishMessage:(NSString *)message
{
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
@"APP_NAME", @"name",
message, @"message",
APP_LINK, @"link",
@"APP_PICTURE", @"picture",
nil];
[self.spinner startAnimating];
[self performPublishAction:^{
[FBRequestConnection
startWithGraphPath:@"me/feed"
parameters:params
HTTPMethod:@"POST"
completionHandler:^(FBRequestConnection *connection,
id result,
NSError *error) {
[self.spinner stopAnimating];
NSString *messageTitle = nil;
NSString *message = nil;
// If the result came back okay with no errors...
if (result && !error)
{
NSLog(@"accessToken : %@",[FBSession activeSession].accessToken );
NSLog(@"result : %@",result);
messageTitle = @"Success";
message = @"App has posted to facebook";
}else{
NSLog(@"error : %@",error);
messageTitle = @"Error v1.1";
//message = error.localizedDescription;
message = @"Unable to process the request. Please check the permissions for the application.";
[FBSession.activeSession closeAndClearTokenInformation];
}
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:messageTitle
message:message
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles: nil];
[alert show];
//TODO maybe clear connection here if we want to force an new login
}];
}];
}
现在问题出现在一些iOS 6.0设备上它正在抛出facebook.sdk.error 3并且在某些设备上它甚至在允许应用程序发布时抛出facebook.sdk.error 2。在当前代码中，我刚刚将消息更改为自定义以获得更加用户友好的消息，但如果您继续打印localizedDescription，它将显示这些消息。
在大多数iOS 6.0设备上，代码工作正常并且邮件已发布。让我知道是否有人可以找出问题的确切位置。我现在已经花了好几天时间，但仍未解决问题所在。
修改1 我观察到一种模式，当安装了facebook应用程序并且用户通过它登录并且未通过本机设置登录时，我遇到了这些困难。
答案 0 :(得分：0)
如果您找到iOS版本并使用Apple的默认facebook shar视图（适用于iOS 6.0），而另一端使用以下版本，则必须使用Graph API。
答案 1 :(得分：0)
我使用这种方法在iOS6中对我的工作很好，可能对它有所帮助。
-(void)openFacebookAuthentication
{
NSArray *permission = [NSArray arrayWithObjects:kFBEmailPermission,kFBUserPhotosPermission, nil];
[FBSession setActiveSession: [[FBSession alloc] initWithPermissions:permission] ];
[[FBSession activeSession] openWithBehavior:FBSessionLoginBehaviorForcingWebView completionHandler:^(FBSession *session, FBSessionState status, NSError *error) {
switch (status) {
case FBSessionStateOpen:
[self getMyData];
break;
case FBSessionStateClosedLoginFailed: {
NSString *errorCode = [[error userInfo] objectForKey:FBErrorLoginFailedOriginalErrorCode];
NSString *errorReason = [[error userInfo] objectForKey:FBErrorLoginFailedReason];
BOOL userDidCancel = !errorCode && (!errorReason || [errorReason isEqualToString:FBErrorLoginFailedReasonInlineCancelledValue]);
if(error.code == 2 && ![errorReason isEqualToString:@"com.facebook.sdk:UserLoginCancelled"]) {
UIAlertView *errorMessage = [[UIAlertView alloc] initWithTitle:kFBAlertTitle
message:kFBAuthenticationErrorMessage
delegate:nil
cancelButtonTitle:kOk
otherButtonTitles:nil];
[errorMessage performSelectorOnMainThread:@selector(show) withObject:nil waitUntilDone:YES];
errorMessage = nil;
}
}
break;
// presently extension, log-out and invalidation are being implemented in the Facebook class
default:
break; // so we do nothing in response to those state transitions
}
}];
permission = nil;
}