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A utility class with methods to provide more information for Facebook related errors if you do not want to use the NSError(FBError) category.
| Inherits from: | NSObject |
| Declared in: | FBErrorUtility.h |
errorCategoryForError:Categorizes the error, if it is Facebook related, to simplify application mitigation behavior
| 參數 | 說明 |
|---|---|
error | The error to be categorized. |
+ (FBErrorCategory) errorCategoryForError:(NSError *)error;In general, in response to an error connecting to Facebook, an application should, retry the operation, request permissions, reconnect the application, or prompt the user to take an action. The error category can be used to understand the class of error received from Facebook. For more infomation on this see https://developers.facebook.com/docs/reference/api/errors/
FBErrorUtility.herrorCodeForError:Retrieves the underlying error code from an FBError that is wrapped within an NSError. Returns NSNotFound if no error code was found.
| 參數 | 說明 |
|---|---|
error | The error whose error code should be retrieved. |
+ (NSUInteger) errorCodeForError:(NSError *)error;FBErrorUtility.herrorSubcodeForError:Retrieves the underlying error subcode from an FBError that is wrapped within an NSError. Returns NSNotFound if no error subcode was found.
| 參數 | 說明 |
|---|---|
error | The error whose error subcode should be retrieved. |
+ (NSUInteger) errorSubcodeForError:(NSError *)error;FBErrorUtility.hisTransientError:YES if given error is transient and may succeed if the initial action is retried as-is. Application may use this information to display a "Retry" button, if user should be notified about this error.
| 參數 | 說明 |
|---|---|
error | The error to inspect. |
+ (BOOL) isTransientError:(NSError *)error;FBErrorUtility.hshouldNotifyUserForError:If YES indicates that a user action is required in order to successfully continue with the facebook operation
| 參數 | 說明 |
|---|---|
error | The error to inspect. |
+ (BOOL) shouldNotifyUserForError:(NSError *)error;In general if this returns NO, then the application has a straightforward mitigation, such as retry the operation or request permissions from the user, etc. In some cases it is necessary for the user to take an action before the application continues to attempt a Facebook connection. For more infomation on this see https://developers.facebook.com/docs/reference/api/errors/
FBErrorUtility.huserMessageForError:A message suitable for display to the user, describing a user action necessary to enable Facebook functionality. Not all Facebook errors yield a message suitable for user display; however in all cases where +shouldNotifyUserForError: returns YES, this method returns a localizable message suitable for display.
| 參數 | 說明 |
|---|---|
error | The error to inspect. |
+ (NSString *) userMessageForError:(NSError *)error;FBErrorUtility.huserTitleForError:A short summary of the error suitable for display to the user. Not all Facebook errors yield a localized message/title suitable for user display; however in all cases when title is available, user should be notified.
| 參數 | 說明 |
|---|---|
error | The error to inspect. |
+ (NSString *) userTitleForError:(NSError *)error;FBErrorUtility.h