gistfile1.java

protected void onCreate(Bundle savedInstanceState) {
		...

		// get listview
		ListView lv = getListView();
		lv.setDivider(null);

		lv.setOnItemClickListener(new android.widget.AdapterView.OnItemClickListener() {
			@Override
			public void onItemClick(AdapterView<?> arg0, View view,
					int position, long arg3) {
				
				Toast.makeText(CategoryActivity.this, "Item selected: " + position,
						Toast.LENGTH_LONG).show();
			}
		});
}