java.lang.ClassCastException: android.widget.TextView -

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i've layout xml, named pagina.xml:

<?xml version="1.0" encoding="utf-8"?> <relativelayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:gravity="center_vertical" >      <textview         android:id="@+id/descrizione"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_alignparentleft="true"         android:layout_alignparentright="true"         android:layout_alignparenttop="true"         android:text="large text"         android:textappearance="?android:attr/textappearancelarge" />      <button         android:id="@+id/scelta1"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_alignparentbottom="true"         android:layout_centerhorizontal="true"         android:text="button" />      <button         android:id="@+id/scelta3"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_above="@+id/scelta1"         android:layout_alignleft="@+id/scelta1"         android:layout_marginbottom="16dp"         android:text="button" />      <button         android:id="@+id/scelta2"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_above="@+id/scelta3"         android:layout_alignleft="@+id/scelta3"         android:layout_marginbottom="18dp"         android:text="button" />  </relativelayout>

i want write description of element, when assign variable textview element, emulator crashes. code:

public int posizione;     public string stanza;     public string[] azioni;     public int[] vai;     public xmlpullparser xpp;     public edittext descr;     public button scelta_1, scelta_2, scelta_3;      public void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.pagina);          try {             carica_stanza(posizione);         } catch (filenotfoundexception e) {             // todo auto-generated catch block             e.printstacktrace();         } catch (xmlpullparserexception e) {             // todo auto-generated catch block             e.printstacktrace();         } catch (ioexception e) {             // todo auto-generated catch block             e.printstacktrace();         }          descr = (edittext) this.findviewbyid(r.id.descrizione);         scelta_1= (button) this.findviewbyid(r.id.scelta1);         scelta_2= (button) this.findviewbyid(r.id.scelta2);         scelta_3= (button) this.findviewbyid(r.id.scelta3);      }

help me understand!

try

public textview descr; // ... descr = (textview) this.findviewbyid(r.id.descrizione);

instead of

public edittext descr; // ... descr = (edittext) this.findviewbyid(r.id.descrizione);

you using textview in xml layout. tried cast object edittext

what going use? if want text editable need change component edittext in xml , in class.

  • textview - prints text
  • edittext - lets edit text in program

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