android - problem with intent - onClick compared to a onListItemClick -

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i'm using following intent pass on next screen shows user information can edited , saved.......this works good

@override protected void onlistitemclick(listview l, view v, int position, long id) {     super.onlistitemclick(l, v, position, id);     intent = new intent(this, contact.class);     i.putextra(notesdbadapter.key_rowid, id);     startactivityforresult(i, activity_edit); }

however on contact screen have button , use following go admin screen can edit , save other information, when click button screen goes black , terminates. 

public void onclick(view v) { string id = null; switch (v.getid()) { case r.id.admin: // dostuff     intent = new intent(this, admin.class);     i.putextra(notesdbadapter.key_rowid, id);     startactivity(i);        break;

i'm sure key_rowid problem , needs recoded work onclick compared onlistitemclick....... tryed alot no luck, great.

i think problem in first example view passed in container row , in second example it's button.


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