问题
By default, the FB Unity SDK will try to use the FB App to login if the user has it installed. Otherwise, it will fall back to using a HTML based popup to let the user login.
However the FB App only works with API 1.0 ("basic_info" permission). Will fail with "Invalid permissions" on "public_profile".
The webview dialog only works with API 2.0 ("public_profile" permission). Will fail with "Invalid Scope: basic_info. Use public_profile".
The best fix would be to force the sdk to ignore the FB App and use webview to login all the time. Can this be done in Android?
回答1:
Yes, try this
openRequest.setLoginBehavior(SessionLoginBehavior.SUPPRESS_SSO);
Or, if you use old fb sdk
authorize(activity, permissions, FORCE_DIALOG_AUTH, listener);
回答2:
In the latest SDK use FB.Mobile.ShareDialogMode to set the default behavior to webview.
来源：https://stackoverflow.com/questions/24253913/facebook-unity-sdk-how-to-force-login-using-webview-instead-of-fb-app