我使用的代码
if (FBSession.activeSession.state == FBSessionStateOpen
|| FBSession.activeSession.state == FBSessionStateOpenTokenExtended) {
// Close the session and remove the access token from the cache
// The session state handler (in the app delegate) will be called automatically
[FBSession.activeSession closeAndClearTokenInformation];
// If the session state is not any of the two "open" states when the button is clicked
} else {
// Open a session showing the user the login UI
// You must ALWAYS ask for basic_info permissions when opening a session
[FBSession openActiveSessionWithReadPermissions:@[@"basic_info,email"]
allowLoginUI:YES
completionHandler:
^(FBSession *session,FBSessionState state,NSError *error) {
// Retrieve the app delegate
AppDelegate* appDelegate = [UIApplication sharedApplication].delegate;
// Call the app delegate's sessionStateChanged:state:error method to handle session state changes
[appDelegate sessionStateChanged:session state:state error:error];
}];
}
解决方法
使用以下代码
FBSession *session = [[FBSession alloc] initWithPermissions:@[@"basic_info",@"email"]];
[FBSession setActiveSession:session];
[session openWithBehavior:FBSessionLoginBehaviorForcingWebView
completionHandler:^(FBSession *session,FBSessionState status,NSError *error) {
if (FBSession.activeSession.isOpen) {
[[FBRequest requestForMe] startWithCompletionHandler:
^(FBRequestConnection *connection,NSDictionary<FBGraphUser> *user,NSError *error) {
if (!error) {
NSLog(@"accesstoken %@",[NSString stringWithFormat:@"%@",session.accessTokenData]);
NSLog(@"user id %@",user.id);
NSLog(@"Email %@",[user objectForKey:@"email"]);
NSLog(@"User Name %@",user.username);
}
}];
}
}];
