android - Fragment returning Null context -

i've been trying fix past 2 hours. tried lot of things.

the fragment seems passing null context adapter. have tried initialize context variable in oncreate , oncreateview , onactivitycreated. same result.

here fragment:

    public class activebookingsfragment extends fragment {     context con;     arraylist<booking> bookings;     listview activebookings_lv;      @override     public void oncreate(bundle savedinstancestate)     {         super.oncreate(savedinstancestate);     }      @override     public void onactivitycreated(bundle savedinstancestate)     {         super.onactivitycreated(savedinstancestate);          con = this.getactivity();     }      @override     public view oncreateview(layoutinflater inflater, @nullable viewgroup container, @nullable bundle savedinstancestate)     {         view v =inflater.inflate(r.layout.tab_activebookings,container,false);          activebookings_lv = (listview) v.findviewbyid(r.id.lv_activebookings);         bookings = new arraylist<booking>();          booking b1 = new booking("data");         bookings.add(b1);          activebookings_lv.setadapter(new bookingadapter(con, bookings));          return v;     } } 

and here logcat error:

java.lang.nullpointerexception         @ android.view.layoutinflater.from(layoutinflater.java:212)         @ com.nettechltd.cabeecustomer.customadapters.bookingadapter.<init>(bookingadapter.java:26)         @ com.nettechltd.cabeecustomer.activebookingsfragment.oncreateview(activebookingsfragment.java:51)         @ android.support.v4.app.fragment.performcreateview(fragment.java:1789)         @ android.support.v4.app.fragmentmanagerimpl.movetostate(fragmentmanager.java:955)         @ android.support.v4.app.fragmentmanagerimpl.movetostate(fragmentmanager.java:1138)         @ android.support.v4.app.backstackrecord.run(backstackrecord.java:740)         @ android.support.v4.app.fragmentmanagerimpl.execpendingactions(fragmentmanager.java:1501)         @ android.support.v4.app.fragmentmanagerimpl.executependingtransactions(fragmentmanager.java:490)         @ android.support.v4.app.fragmentstatepageradapter.finishupdate(fragmentstatepageradapter.java:163)         @ android.support.v4.view.viewpager.populate(viewpager.java:1105)         @ android.support.v4.view.viewpager.populate(viewpager.java:951)         @ android.support.v4.view.viewpager.onmeasure(viewpager.java:1473)         @ android.view.view.measure(view.java:17633)         @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:5428)         @ android.widget.linearlayout.measurechildbeforelayout(linearlayout.java:1413)         @ android.widget.linearlayout.measurevertical(linearlayout.java:696)         @ android.widget.linearlayout.onmeasure(linearlayout.java:589)         @ android.view.view.measure(view.java:17633)         @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:5428)         @ android.widget.framelayout.onmeasure(framelayout.java:310)         @ android.support.v7.internal.widget.contentframelayout.onmeasure(contentframelayout.java:124)         @ android.view.view.measure(view.java:17633)         @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:5428)         @ android.widget.linearlayout.measurechildbeforelayout(linearlayout.java:1413)         @ android.widget.linearlayout.measurevertical(linearlayout.java:696)         @ android.widget.linearlayout.onmeasure(linearlayout.java:589)         @ android.view.view.measure(view.java:17633)         @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:5428)         @ android.widget.framelayout.onmeasure(framelayout.java:310)         @ android.view.view.measure(view.java:17633)         @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:5428)         @ android.widget.linearlayout.measurechildbeforelayout(linearlayout.java:1413)         @ android.widget.linearlayout.measurevertical(linearlayout.java:696)         @ android.widget.linearlayout.onmeasure(linearlayout.java:589)         @ android.view.view.measure(view.java:17633)         @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:5428)         @ android.widget.framelayout.onmeasure(framelayout.java:310)         @ com.android.internal.policy.impl.phonewindow$decorview.onmeasure(phonewindow.java:2588)         @ android.view.view.measure(view.java:17633)         @ android.view.viewrootimpl.performmeasure(viewrootimpl.java:2347)         @ android.view.viewrootimpl.measurehierarchy(viewrootimpl.java:1439)         @ android.view.viewrootimpl.performtraversals(viewrootimpl.java:1653)         @ android.view.viewrootimpl.dotraversal(viewrootimpl.java:1297)         @ android.view.viewrootimpl$traversalrunnable.run(viewrootimpl.java:6773)         @ android.view.choreographer$callbackrecord.run(choreographer.java:813)         @ android.view.choreographer.docallbacks(choreographer.java:613)         @ android.view.choreographer.doframe(choreographer.java:583)         @ android.view.choreographer$framedisplayeventreceiver.run(choreographer.java:799)         @ android.os.handler.handlecallback(handler.java:733)         @ android.os.handler.dispatchmessage(handler.java:95)         @ android.os.looper.loop(looper.java:146)         @ android.app.activitythread.main(activitythread.java:5748)         @ java.lang.reflect.method.invokenative(native method)         @ java.lang.reflect.method.invoke(method.java:515)         @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:1291)         @ com.android.internal.os.zygotein 

initialize context in fragment onattach(.....) like

 @override public void onattach(activity activity) {     super.onattach(activity);     con = getactivity();     } }