textview - Null Object Preferences Edittext on Android -


i new android programming. @ bottleneck. trying chatapp. when click item these errors occur :

java.lang.nullpointerexception: attempt invoke virtual method 'void android.widget.edittext.setinputtype(int)' on null object reference  @ com.senturk.fatih.chat03.chat.oncreate(chat.java:55)

and here line 55

txt.setinputtype(inputtype.type_class_text|inputtype.type_text_flag_multi_line);

and guess should add line txt=(edittext)findviewbyid(r.id.text);

thanks favor ,

private arraylist<conversation> convlist; private chatadapter adp; private edittext txt; private string buddy; private date lstmsgdate; private boolean isrunning; private static handler handler;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.chat);     convlist=new arraylist<conversation>();      listview list=(listview)findviewbyid(r.id.list);     adp=new chatadapter();      list.setadapter(adp);     list.settranscriptmode(abslistview.transcript_mode_always_scroll);     list.setstackfrombottom(true);      txt=(edittext)findviewbyid(r.id.text);     txt.setinputtype(inputtype.type_class_text|inputtype.type_text_flag_multi_line);      settouchnclick(r.id.btnsend);     buddy=getintent().getstringextra(const.extra_data);     getactionbar().settitle(buddy);      handler=new handler(); }

the xml:

<?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="match_parent"     android:orientation="vertical"     android:background="@color/white">      <listview         android:id="@+id/list"         android:layout_width="match_parent"         android:layout_height="0dp"         android:layout_weight="1"         android:divider="@color/white"         android:dividerheight="@dimen/pad_5dp"         android:fastscrollenabled="true"         android:paddingbottom="@dimen/pad_10dp"         android:paddingtop="@dimen/pad_10dp"         tools:listitem="@layout/chat_item_rcv" >     </listview>      <linearlayout         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:background="@color/gray_light"         android:gravity="center_vertical"         android:padding="@dimen/pad_5dp"         tools:context=".mainactivity" >           <edittext             android:id="@+id/txt"             style="@style/edittext_msg"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:layout_weight="1"             android:hint="@string/type_msg" >           </edittext>          <button             android:id="@+id/btnsend"             style="@style/btn"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:background="@drawable/send_telegram" />      </linearlayout>  </linearlayout>

thanks posting layout xml. error caused fact should calling:

txt=(edittext)findviewbyid(r.id.txt);

and not

txt=(edittext)findviewbyid(r.id.text);

since don't have edittext id in layout.


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