我有这个应用程序用于在 facebook 上发帖，目前在某些 iOS 6.0 设备上发帖时遇到困难。我只使用 facebook SDK 3.1 并尝试发布操作。以下是我在课堂上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
}];
}];
}
现在问题出在某些 iOS 6.0 设备上，它会抛出 facebook.sdk.error 3，而在某些设备上，即使允许应用程序发布，它也会抛出 facebook.sdk.error 2。在当前代码中，我刚刚将消息更改为自定义消息以获得更用户友好的消息，但如果您继续打印本地化描述，它将显示这些消息。
在大多数 iOS 6.0 设备上，代码运行良好，并且消息已发布。让我知道是否有人可以找出问题的确切位置。我已经在这上面呆了几天，但仍然没有找到问题所在。
编辑 1 我观察到的一种模式是，当安装 facebook 应用程序并且用户通过它登录而不是通过本机设置登录时，我面临着这些困难。