Custom Facebook Login Button - Android -

i''m following tutorial far can't make work, though year ago or so...

i'm using androidstudo 1.2.2 , facebooksdk 4.

i want simple login facebook using custom button, 1 shown in image:

now, in example tutorial i'm having problems session variable, says cannot resolve it, neither getactivity()

has naybody tried on facebooksdk4.0?

is correct approach or maybe there more updated?

thanks in advance!

step 1: first add framelayout , make facebook button visibility="gone" , add custom button. don't forgot put xmlns:facebook="http://schemas.android.com/apk/res-auto" in main layout.

<framelayout         android:id="@+id/framelayout1"         android:layout_width="match_parent"         android:layout_height="wrap_content" >          <com.facebook.login.widget.loginbutton             android:id="@+id/login_button"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:visibility="gone" />          <button             android:id="@+id/fb"             android:layout_width="fill_parent"             android:layout_height="wrap_content"             android:background="#416bc1"             android:onclick="onclick"             android:text="facebook"             android:textcolor="#ffffff"             android:textstyle="bold" />     </framelayout> 

step 2: initialize facebooksdk in oncreate before inflecting layout.

facebooksdk.sdkinitialize(this.getapplicationcontext());

step 3: add java file.

callbackmanager = callbackmanager.factory.create();  fb = (button) findviewbyid(r.id.fb); loginbutton = (loginbutton) findviewbyid(r.id.login_button);  list < string > permissionneeds = arrays.aslist("user_photos", "email",     "user_birthday", "public_profile", "accesstoken"); loginbutton.registercallback(callbackmanager, new facebookcallback < loginresult > () {@override     public void onsuccess(loginresult loginresult) {          system.out.println("onsuccess");          string accesstoken = loginresult.getaccesstoken()             .gettoken();         log.i("accesstoken", accesstoken);          graphrequest request = graphrequest.newmerequest(         loginresult.getaccesstoken(),         new graphrequest.graphjsonobjectcallback() {@override             public void oncompleted(jsonobject object,             graphresponse response) {                  log.i("loginactivity",                 response.tostring());                 try {                     id = object.getstring("id");                     try {                         url profile_pic = new url(                             "http://graph.facebook.com/" + id + "/picture?type=large");                         log.i("profile_pic",                         profile_pic + "");                      } catch (malformedurlexception e) {                         e.printstacktrace();                     }                     name = object.getstring("name");                     email = object.getstring("email");                     gender = object.getstring("gender");                     birthday = object.getstring("birthday");                 } catch (jsonexception e) {                     e.printstacktrace();                 }             }         });         bundle parameters = new bundle();         parameters.putstring("fields",             "id,name,email,gender, birthday");         request.setparameters(parameters);         request.executeasync();     }      @override     public void oncancel() {         system.out.println("oncancel");     }      @override     public void onerror(facebookexception exception) {         system.out.println("onerror");         log.v("loginactivity", exception.getcause().tostring());     } }); 

step 4: don't forget add following code.

@override protected void onactivityresult(int requestcode, int responsecode, intent data) {     super.onactivityresult(requestcode, responsecode, data);     callbackmanager.onactivityresult(requestcode, responsecode, data); } 

step 5: set custom button click facebooklogin button click.

public void onclick(view v) {     if (v == fb) {         loginbutton.performclick();     }  } 

step 6: programmatically logout use this.

loginmanager.getinstance().logout();

step 7: can find user logged in or not profile.

profile = profile.getcurrentprofile().getcurrentprofile(); if (profile != null) {     // user has logged in } else {     // user has not logged in }