Facebook Android SDK无法在注销时清除之前的登录信息

Question

My app has facebook login integration in it, And i found one issue while re-login, When i tried to logout from facebook and after that re-login i am getting previous user auto login in my app but what i need is to login as new user. Don't Know what's Going wrong

My Logout code is

val parameters = Bundle()

    val request = GraphRequest(
            AccessToken.getCurrentAccessToken(),
            "/me/permissions/",
            parameters,
            HttpMethod.DELETE,
            GraphRequest.Callback {
                // Insert your code here
                LoginManager.getInstance().logOut()
            })

    request.executeAsync()

Answer 1

You need to initialize the FacebookSdk in the logout activity before calling logOut().

LoginManager.getInstance().logOut(); ,will work

but dont forgot to put FacebookSdk.sdkInitialize(getApplicationContext()); inside your LogoutActivity onCreate

Answer 2

对于从Facebook 注销仅需要使用：

LoginManager.getInstance().logOut();

Answer 3

In facebook SDK,if you want to completely de-couple, make sure you also remove the app from the user's facebook account. This method disconnects the user completely:

public void logoutFromFacebook() {

    if (AccessToken.getCurrentAccessToken() == null) {
        return; // user already logged out
    }

    new GraphRequest(AccessToken.getCurrentAccessToken(), "/me/permissions/", null, HttpMethod.DELETE, new GraphRequest
            .Callback() {
        @Override
        public void onCompleted(GraphResponse graphResponse) {    
            LoginManager.getInstance().logOut();

        }
    }).executeAsync();
}

also use this FacebookSdk.sdkInitialize(getApplicationContext()); to initialize the facebook sdk.

Hope it will help you!!