Facebook的登入,登出发行无效的密钥散列错误,而试图重新登录 [英] Facebook Login-Logout Issue Invalid Key Hash Error, While Trying to Login Again
问题描述
我有一个工作的成功简单的Facebook登录,注销活动。
I have a simple Facebook login-logout activity that is working successfully.
然而,当我从应用程序注销我再次尝试登录,但Facebook的给无效密钥散列错误。
However, after I logout from the app I try to login again but the facebook gives invalid key hash error.
请注意,我登录和注销,在第一次成功但在我注销并尝试重新登录Facebook的给出了错误。应该怎么办?
Note that I login and logout at first time successfully but after I logged out and try to login again Facebook gives that error. What should be done?
感谢您的attenion。
Thanks for your attenion.
下面是我的code:
public class MainFragment extends Fragment {
private static final String TAG = MainFragment.class.getSimpleName();
private UiLifecycleHelper uiHelper;
private final List<String> permissions;
public MainFragment() {
permissions = Arrays.asList("user_status");
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
uiHelper = new UiLifecycleHelper(getActivity(), callback);
uiHelper.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_main, container, false);
LoginButton authButton = (LoginButton) view.findViewById(R.id.authButton);
authButton.setFragment(this);
authButton.setReadPermissions(permissions);
return view;
}
@Override
public void onResume() {
super.onResume();
// For scenarios where the main activity is launched and user
// session is not null, the session state change notification
// may not be triggered. Trigger it if it's open/closed.
Session session = Session.getActiveSession();
if (session != null &&
(session.isOpened() || session.isClosed()) ) {
onSessionStateChange(session, session.getState(), null);
}
uiHelper.onResume();
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
uiHelper.onActivityResult(requestCode, resultCode, data);
}
@Override
public void onPause() {
super.onPause();
uiHelper.onPause();
}
@Override
public void onDestroy() {
super.onDestroy();
uiHelper.onDestroy();
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
uiHelper.onSaveInstanceState(outState);
}
private void onSessionStateChange(Session session, SessionState state,
Exception exception) {
if (state.isOpened()) {
Log.i(TAG, "Logged in...");
} else if (state.isClosed()) {
if (Session.getActiveSession() != null) {
Session.getActiveSession().closeAndClearTokenInformation();
}
Session.setActiveSession(null);
Log.i(TAG, "Logged out...");
}
}
private Session.StatusCallback callback = new Session.StatusCallback() {
@Override
public void call(Session session, SessionState state,
Exception exception) {
onSessionStateChange(session, state, exception);
}
};
}
推荐答案
假设你已经添加了keyhash到您的Facebook应用程序。
Assuming that you already added the keyhash to your facebook application.
要确保在设置 - > Android系统。在类名称字段中输入第一个活动是与所有的包。 例: com.yourcompany.yourapp.MyFirstActivity
Be sure that in Setting -> Android. In the "Class Name" field your first activity is with all package. Example: com.yourcompany.yourapp.MyFirstActivity
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