findViewById returns NULL when using Fragment

Question

I'm new to Android developing and of course on Fragments.

I want to access the controls of my fragment in main activity but 'findViewById' returns null. without fragment the code works fine.

Here's part of my code:

The fragment:

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:orientation="vertical"     tools:ignore="HardcodedText" >      <EditText         android:id="@+id/txtXML"         android:layout_width="fill_parent"         android:layout_height="fill_parent"         android:ems="10"         android:scrollbars="vertical">     </EditText>  </LinearLayout> 

the onCreate of MainActivity:

    @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         super.setContentView(R.layout.main);          this.initialisePaging();          EditText txtXML = (EditText) findViewById(R.id.txtXML);} 

on this point the txtXML is null.

What's Missing in my code or what should I do?

Answer 1

Try like this on your fragments on onCreateView

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {      if (container == null) {         return null;     }      LinearLayout ll = (LinearLayout )inflater.inflate(R.layout.tab_frag1_layout, container, false); EditText txtXML = (EditText) ll.findViewById(R.id.txtXML);      return ll; }