如何禁用Facebook登录对话框
问题描述:
我是新来的Facebook SDK和iOS deverlop,我的应用在用户登录Facebook时有问题,当我使用同一个帐户登录时,我的应用始终显示此登录对话框: 如何禁用Facebook登录对话框
我想我的应用程序只显示该对话框当FB账号登录的第一次,但我不知道怎么办呢,这里是我的代码:
- (void)sessionStateChanged:(FBSession *)session state:(FBSessionState) state error:(NSError *)error {
switch (state) {
case FBSessionStateOpen:
if (!error) {
mainViewController *mainView = [self.storyboard instantiateViewControllerWithIdentifier:@"mainView"];
[self.navigationController pushViewController:mainView animated:YES];
// We have a valid session
NSLog(@"User session found");
}
break;
case FBSessionStateClosed:
case FBSessionStateClosedLoginFailed:
[FBSession.activeSession closeAndClearTokenInformation];
break;
default:
break;
}
[[NSNotificationCenter defaultCenter]
postNotificationName:FBSessionStateChangedNotification
object:session];
if (error) {
UIAlertView *alertView = [[UIAlertView alloc]
initWithTitle:@"Error"
message:error.localizedDescription
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alertView show];
}
}
- (BOOL)openSessionWithAllowLoginUI:(BOOL)allowLoginUI {
NSArray *permissions = [[NSArray alloc] initWithObjects:
@"email",
@"user_likes",
nil];
return [FBSession openActiveSessionWithReadPermissions:permissions
allowLoginUI:allowLoginUI
completionHandler:^(FBSession *session,
FBSessionState state,
NSError *error) {
[self sessionStateChanged:session
state:state
error:error];
}];
}
- (IBAction)authLogin:(id)sender {
[self openSessionWithAllowLoginUI:YES];
}
我用FB SDK 3.2和iOS模拟器6.1