i changed the id but still same Null object. same result for TextView and ProgressBar as well, however i can use EditText successfully.
On Mar 17, 5:04 pm, dan raaka <[email protected]> wrote: > Try changing the id and see if it makes any difference. > > -Dan > > > > On Tue, Mar 17, 2009 at 9:46 AM, zeeshan <[email protected]> wrote: > > > Hi Android Experts, > > > why CheckBox is always null. > > > please find the error in my code: > > > xml- > > > <CheckBox id="@+id/checkbox" > > android:layout_width="wrap_content" > > android:layout_height="wrap_content" > > /> > > > code file- > > > package com.reblogr.reblogrclient; > > > public class Test extends Activity { > > /** Called when the activity is first created. */ > > > public CheckBox checkbox; > > > @Override > > public void onCreate(Bundle savedInstanceState) { > > > super.onCreate(savedInstanceState); > > setContentView(R.layout.login); > > Button connectButton = (Button)findViewById(R.id.objBtn1); > > > checkbox= (CheckBox)findViewById(R.id.checkbox); > > > connectButton.setOnClickListener(connectButtonListener); > > } > > public OnClickListener connectButtonListener = new OnClickListener > > () > > { > > public void onClick(View v) > > { > > > Athenticate(); > > > } > > }; > > public void Athenticate(){ > > > if(checkbox.isChecked()){ // > > NullPointerException here > > //do something > > > } > > > } > > > } > > > why checkbox is null?- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
