package com.example.alyssa.wishlist2; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.Menu; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.EditText; import android.widget.ListView; import java.util.ArrayList; public class MainActivity extends AppCompatActivity { private ArrayList items; private ArrayAdapter itemsAdapter; private ListView lvItems; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); lvItems = (ListView) findViewById(R.id.lvItems); items = new ArrayList(); itemsAdapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, items); lvItems.setAdapter(itemsAdapter); items.add("First Item"); items.add("Second Item"); setupListViewListener(); //For Deleting Items From List. Click Listener   } private void setupListViewListener() { lvItems.setOnItemLongClickListener( new AdapterView.OnItemLongClickListener() { @Override public boolean onItemLongClick(AdapterView adapter, View item, int pos, long id) { // Remove the item within array at position  items.remove(pos); // Refresh the adapter  itemsAdapter.notifyDataSetChanged(); // Return true consumes the long click event (marks it handled)  return true; } }); } public void onAddItem(View v) { EditText etNewItem = (EditText) findViewById(R.id.etNewItem); String itemText = etNewItem.getText().toString(); itemsAdapter.add(itemText); etNewItem.setText(""); } } 

I need to add a screen that pops up when one of the items from the list is clicked on to add additional details. I am not sure how to do this. Posted above is my java code for the app.