android - error in login with facebook login -


i'm trying implement login facebook in application. have imported sdk , set right settings on developer account on facebook. when try login facebook redirects me right loginactivity instead of mainactivity.

the facebook button imported in xml file this:

    <com.facebook.login.widget.loginbutton         android:id="@+id/fb_login_button"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_gravity="center_horizontal"         android:layout_margintop="30dp"         android:layout_marginbottom="30dp" />

this launch activitys oncreate function looks like:

    facebooksdk.sdkinitialize(this);      callbackmanager = callbackmanager.factory.create();      loginmanager.getinstance().registercallback(callbackmanager,             new facebookcallback<loginresult>() {                 @override                 public void onsuccess(loginresult loginresult) {                     // user logged in                     // create login session                     session.setlogin(true);                     // launch main activity                     intent intent = new intent(loginactivity.this,                             mainactivity.class);                     startactivity(intent);                     finish();                 }                  @override                 public void oncancel() {                     toast.maketext(getapplicationcontext(), "you cancelled while logging in, please login gain access.", toast.length_short).show();                  }                  @override                 public void onerror(facebookexception exception) {                     toast.maketext(getapplicationcontext(), "an error appeared, please try again.", toast.length_short).show();                 }             });       setcontentview(r.layout.activity_login);

when click facebook login button redirected facebook app , when log in facebook app asks permission, redirected login activity.

i found problem was. forgot line of code initiates action after you're logged in, is:

loginmanager.getinstance().loginwithreadpermissions(this, arrays.aslist("public_profile", "user_friends", "email"));

you should enter after you've set behaviour of loginmanager.


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