[android-developers] removing items from listview and array list problem

I have this code i am used to pass an array list to another page and
show it as a listview. When the list shows up, i want to be able to
check an item and remove it at "button click" which will modify the
array.

public class Oppout extends Activity {
int selectedPosition;
/** Called when the activity is first created. */

@Override
public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);
setContentView(R.layout.oppout);

final ListView lv2 = (ListView) findViewById
(R.id.custom_list_view);
lv2.setClickable(true);
lv2.setAdapter(new ArrayAdapter<String>(Oppout.this,
android.R.layout.simple_list_item_checked,
Entername.playerList));

lv2.setOnItemClickListener
(
new AdapterView.OnItemClickListener()
{
public void onItemClick(AdapterView adapterView, View
view,int arg2, long arg3)
{
int selectedPosition =
adapterView.getSelectedItemPosition();

Toast.makeText(getBaseContext(), "mu"+
selectedPosition,
Toast.LENGTH_SHORT).show();

}
}
);

Button next = (Button) findViewById(R.id.button1);
next.setOnClickListener(new View.OnClickListener() {

public void onClick(View view) {
//on click call the adapterview and delete string at selected
position..this is my problem,
//i just don't know how to do it
int selectedPosition = adapterView.getSelectedItemPosition();
adapterView.remove(player.SelectedPosition);

Intent myIntent = new Intent (view.getContext(),
Callacab.class);
startActivityForResult(myIntent, 0);

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