clear method
void
clear()
Convenience method to clear all entries of this _clientId
.
This can be used to sign out only a specific user
Implementation
void clear() {
// We don't want to clear the id of the user, in case he tries to login
// again we can use the id to set it as a hint for the Google Auth Server
// _setValue(_kIdKey, null);
_setValue(_kIdTokenKey, null);
_setValue(_kAccessTokenKey, null);
_setValue(_kRefreshTokenKey, null);
_setValue(_kScopeKey, null);
_setValue(_kExpirationAtKey, null);
_setValue(_kNameKey, null);
_setValue(_kEmailKey, null);
_setValue(_kPictureKey, null);
}