使用iOS发送Facebook应用邀请不会首次显示应用邀请对话框

Question

我正在处理Facebook App邀请，如果我已经登录到Facebook，则出现“应用程序”对话框没有任何问题，但是如果我没有登录，则没有，但是控件转到具有零结果指令的didCompleteWithResults委托。 请帮助

-(IBAction)InviteFBFriends:(id)sender

{
        if (![FBSDKAccessToken currentAccessToken])
    {
        FBSDKLoginManager *login = [[FBSDKLoginManager alloc] init];        

        [login logInWithReadPermissions:@[@"public_profile",@"email", @"user_photos"] fromViewController:viewController handler:^(FBSDKLoginManagerLoginResult *result, NSError *error) {

            if (error) {

                // Process error

            } else if (result.isCancelled) {

                // Handle cancellations

            } else if([FBSDKAccessToken currentAccessToken]){

                [self InviteFBFriends:nil];

            }

        }];

        return;

    }

    //FOR SENDING INVITATIONS TO FRIENDS

    FBSDKAppInviteContent *content =[[FBSDKAppInviteContent alloc] init];

    content.appLinkURL = [NSURL URLWithString:myAppLinkURL];



    FBSDKAppInviteDialog *fBSDKAppInviteDialog = [[FBSDKAppInviteDialog alloc] init];

    fBSDKAppInviteDialog.delegate = self;

    fBSDKAppInviteDialog.content = content;

    [fBSDKAppInviteDialog show];

}



- (void)appInviteDialog:(FBSDKAppInviteDialog *)appInviteDialog didCompleteWithResults:(NSDictionary *)results{

    NSLog(@"%@",results);

}

- (void)appInviteDialog:(FBSDKAppInviteDialog *)appInviteDialog didFailWithError:(NSError *)error{

    NSLog(@"%@",error);

}

Answer 1

我建议按以下方式执行此方法，因为此块方法会发生延迟，此外您还应检查响应令牌而不是currentAccessToken

-(IBAction)InviteFBFriends:(id)sender {

    if (![FBSDKAccessToken currentAccessToken]) {

        FBSDKLoginManager *login = [[FBSDKLoginManager alloc] init];

        [login logInWithReadPermissions:@[@"public_profile",@"email", @"user_photos"] fromViewController:viewController handler:^(FBSDKLoginManagerLoginResult *result, NSError *error) {

            if (error) {

                // Process error

            } else if (result.isCancelled) {

                // Handle cancellations

            } else if(result.token){

                [self showInvitationsToFriends];

            }

        }];
    }
}

- (void)showInvitationsToFriends {
    //FOR SENDING INVITATIONS TO FRIENDS

    FBSDKAppInviteContent *content =[[FBSDKAppInviteContent alloc] init];  
    content.appLinkURL = [NSURL URLWithString:myAppLinkURL];
    [FBSDKAppInviteDialog showFromViewController:self withContent:content delegate:self]; 
}