我想通过我的应用程序使用Facebook图形API在Facebook上分享，而不会显示共享对话框。但是，在阅读互联网上的各种线程时，我真的很困惑如何实现这一目标。我发现堆栈溢出this post，但无法找到如何使它工作。
任何人都可以给我一步一步的指南或源代码。任何帮助都将受到高度赞赏。
编辑目前使用的代码 -
- (IBAction)StatusUpdateWithAPICalls:(id)sender {
[self openSessionForReadPermissions];
}
- (void)openSessionForReadPermissions
{
[FBSession openActiveSessionWithReadPermissions:nil
allowLoginUI:YES
completionHandler:
^(FBSession *session,
FBSessionState state, NSError *error) {
//this is called even from the reauthorizeWithPublishPermissions
if (state == FBSessionStateOpen && !error)
{
//[self openSessionForPublishPermissions];
//dispatch_async(dispatch_get_current_queue(), ^{
[self openSessionForPublishPermissions];
//});
}
else if (state == FBSessionStateClosedLoginFailed)
{
[FBSession.activeSession closeAndClearTokenInformation];
// [[NSNotificationCenter defaultCenter] postNotificationName:FBLoginErrorNotification object:session];
}
}];
}
-(void)openSessionForPublishPermissions
{
// We will post on behalf of the user, these are the permissions we need:
NSArray *permissionsNeeded = @[@"publish_actions"];
// Request the permissions the user currently has
[FBRequestConnection startWithGraphPath:@"/me/permissions"
completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
if (!error){
// Parse the list of existing permissions and extract them for easier use
NSMutableArray *currentPermissions = [[NSMutableArray alloc] init];
NSArray *returnedPermissions = (NSArray *)[result data];
for (NSDictionary *perm in returnedPermissions) {
if ([[perm objectForKey:@"status"] isEqualToString:@"granted"]) {
[currentPermissions addObject:[perm objectForKey:@"permission"]];
}
}
// Build the list of requested permissions by starting with the permissions
// needed and then removing any current permissions
NSMutableArray *requestPermissions = [[NSMutableArray alloc] initWithArray:permissionsNeeded copyItems:YES];
[requestPermissions removeObjectsInArray:currentPermissions];
NSLog(@"Asking: %@", requestPermissions);
// If we have permissions to request
if ([requestPermissions count] > 0){
// Ask for the missing permissions
[FBSession.activeSession requestNewPublishPermissions:requestPermissions
defaultAudience:FBSessionDefaultAudienceFriends
completionHandler:^(FBSession *session, NSError *error) {
if (!error) {
// Permission granted, we can request the user information
[self makeRequestToUpdateStatus];
} else {
// An error occurred, handle the error
NSLog(@"%@", error.description);
}
}];
} else {
// Permissions are present, we can request the user information
[self makeRequestToUpdateStatus];
}
} else {
// There was an error requesting the permission information
// See our Handling Errors guide: https://developers.facebook.com/docs/ios/errors/
NSLog(@"%@", error.description);
}
}];
}
- (void)makeRequestToUpdateStatus {
// NOTE: pre-filling fields associated with Facebook posts,
// unless the user manually generated the content earlier in the workflow of your app,
// can be against the Platform policies: https://developers.facebook.com/policy
[FBRequestConnection startForPostStatusUpdate:@"User-generated status update."
completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
if (!error) {
// Status update posted successfully to Facebook
NSLog(@"result: %@", result);
} else {
// An error occurred, we need to handle the error
// See: https://developers.facebook.com/docs/ios/errors
NSLog(@"%@", error.description);
}
}];
}
但是我收到了这个错误 -
Error Domain=com.facebook.sdk Code=2 "The operation couldn’t be completed. com.facebook.sdk:ErrorReauthorizeFailedReasonUserCancelled" UserInfo=0x78788e60 {com.facebook.sdk:ErrorLoginFailedReason=com.facebook.sdk:ErrorReauthorizeFailedReasonUserCancelled, NSLocalizedFailureReason=com.facebook.sdk:ErrorReauthorizeFailedReasonUserCancelled, com.facebook.sdk:ErrorSessionKey=<FBSession: 0x787ac750, state: FBSessionStateOpen, loginHandler: 0x787ac710, appID: 4201XXXXXXXXXXX, urlSchemeSuffix: , tokenCachingStrategy:<FBSessionTokenCachingStrategy: 0x7a1c1b50>, expirationDate: 2015-04-20 06:48:00 +0000, refreshDate: 2015-02-19 09:39:47 +0000, attemptedRefreshDate: 0000-12-30 00:00:00 +0000, permissions:(
"public_profile"
)
而且我不确定我是否正确行事。请建议我。