android - Accessing a view from a fragment -

if take access textview out of java code works. i'm assuming made mistake somewhere it. can see problem?

package com.projectcaruso.naturalfamilyplaning;  import com.projectcaruso.naturalfamilyplanning.r; import android.os.bundle; import android.support.v4.app.fragment; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; import android.widget.textview;   public class historyfragment extends fragment {      @override     public void oncreate(bundle savedinstancestate) {          super.oncreate(savedinstancestate);         sqlhelper entry = new sqlhelper(getactivity());          textview tv = (textview) getview().findviewbyid(r.id.tvsqlinfo);          entry.open();         string results = entry.getdata();         entry.close();          tv.settext(results);      }              @override         public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate) {             return inflater.inflate(r.layout.fragment_history, container, false);         }  } 

xml:

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:orientation ="vertical"     android:layout_width="match_parent"     android:layout_height="wrap_content" >      <tablelayout         android:layout_width="fill_parent"         android:layout_height="fill_parent">          <tablerow>              <textview                 android:layout_width="fill_parent"                 android:layout_height="fill_parent"                 android:text="date" />              <textview                 android:layout_width="fill_parent"                 android:layout_height="fill_parent"                 android:text="temp" />          </tablerow>     </tablelayout>      <textview        android:id="@+id/tvsqlinfo"        android:layout_width="fill_parent"        android:layout_height="fill_parent"        android:text="get info db" />    </linearlayout> 

logcat:

05-12 22:55:01.799: e/androidruntime(1983): fatal exception: main 05-12 22:55:01.799: e/androidruntime(1983): java.lang.nullpointerexception 05-12 22:55:01.799: e/androidruntime(1983):     @ com.projectcaruso.naturalfamilyplaning.historyfragment.oncreate(historyfragment.java:20) 05-12 22:55:01.799: e/androidruntime(1983):     @ android.support.v4.app.fragment.performcreate(fragment.java:1437) 05-12 22:55:01.799: e/androidruntime(1983):     @ android.support.v4.app.fragmentmanagerimpl.movetostate(fragmentmanager.java:877) 05-12 22:55:01.799: e/androidruntime(1983):     @ android.support.v4.app.fragmentmanagerimpl.movetostate(fragmentmanager.java:1088) 05-12 22:55:01.799: e/androidruntime(1983):     @ android.support.v4.app.backstackrecord.run(backstackrecord.java:682) 05-12 22:55:01.799: e/androidruntime(1983):     @ android.support.v4.app.fragmentmanagerimpl.execpendingactions(fragmentmanager.java:1444) 05-12 22:55:01.799: e/androidruntime(1983):     @ android.support.v4.app.fragmentmanagerimpl$1.run(fragmentmanager.java:429) 05-12 22:55:01.799: e/androidruntime(1983):     @ android.os.handler.handlecallback(handler.java:725) 05-12 22:55:01.799: e/androidruntime(1983):     @ android.os.handler.dispatchmessage(handler.java:92) 05-12 22:55:01.799: e/androidruntime(1983):     @ android.os.looper.loop(looper.java:137) 05-12 22:55:01.799: e/androidruntime(1983):     @ android.app.activitythread.main(activitythread.java:5041) 05-12 22:55:01.799: e/androidruntime(1983):     @ java.lang.reflect.method.invokenative(native method) 05-12 22:55:01.799: e/androidruntime(1983):     @ java.lang.reflect.method.invoke(method.java:511) 05-12 22:55:01.799: e/androidruntime(1983):     @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:793) 05-12 22:55:01.799: e/androidruntime(1983):     @ com.android.internal.os.zygoteinit.main(zygoteinit.java:560) 05-12 22:55:01.799: e/androidruntime(1983):     @ dalvik.system.nativestart.main(native method) 

the problem call getview() returns null.

why that?
because oncreate() called before oncreateview().

have @ fragment lifecycle more information: http://developer.android.com/guide/components/fragments.html#creating

solution:
move logic oncreateview() method , keep reference inflated view instead of calling via getview(). this:

@override public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate) {     view view = inflater.inflate(r.layout.fragment_history, container, false);      sqlhelper entry = new sqlhelper(getactivity());     entry.open();     string results = entry.getdata();     entry.close();      textview tv = (textview) view.findviewbyid(r.id.tvsqlinfo);     tv.settext(results);      return view; }