ADD ELEMENT IN THE LIST AND REMOVE IT BY CLICKING IT

First of all make an XML file called listadapter.xml file and insert the following

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout

  xmlns:android="http://schemas.android.com/apk/res/android"

  android:orientation="vertical"

  android:layout_width="fill_parent"

  android:layout_height="fill_parent">

<LinearLayout android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:orientation="horizontal">

<EditText

android:layout_width="230dp" 

android:layout_height="wrap_content" 

android:id="@+id/myEditText"/>

<Button android:text="Add"

android:id = "@+id/Add"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:background = "@drawable/button_shape"

/>

</LinearLayout>

<ListView

android:layout_height="wrap_content" 

android:layout_width="wrap_content" 

android:id="@+id/MyListView">

</ListView>

</LinearLayout>

AND create the class file called ListAdapter.java and insert the following into it

import java.util.ArrayList;

import android.app.Activity;

import android.app.AlertDialog;

import android.content.DialogInterface;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.EditText;

import android.widget.ListView;

import android.widget.Toast;

public class ListAdapter extends Activity {

   public void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       Toast.makeText(ListAdapter.this, "Redirecting to List Activity", 400000).show();

     //  TextView textview = new TextView(this);

     //  textview.setText("This is the Artists tab");

       setContentView(R.layout.listadapter);

       Button bt = (Button)findViewById(R.id.Add); 

       ListView lv = (ListView)findViewById(R.id.MyListView);

       final EditText myEditText= (EditText)findViewById (R.id.myEditText);

       final ArrayList<String> videolinks = new ArrayList<String>();

       final ArrayAdapter<String> aa;

       

       aa= new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,videolinks);

       

       lv.setAdapter(aa);

       

       bt.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

if(myEditText.getText().length() != 0)

{

videolinks.add(0, myEditText.getText().toString().trim());

aa.notifyDataSetChanged();

myEditText.setText("");

}

}

       });

       lv.setOnItemClickListener(new OnItemClickListener() {

@Override

public void onItemClick(AdapterView<?> arg0, View arg1,int arg2, long arg3) {

// TODO Auto-generated method stub

AlertDialog.Builder ad  = new AlertDialog.Builder(ListAdapter.this);

ad.setTitle("Delete?");

ad.setMessage("Are you sure you want to delete " + arg2);

final int positionToRemove = arg2;

ad.setNegativeButton("Cancel", null);

ad.setPositiveButton("Ok", new AlertDialog.OnClickListener() {

public void onClick(DialogInterface dialog, int which) 

{

               videolinks.remove(positionToRemove);

               aa.notifyDataSetChanged();

       }

});

ad.show();

}

});

  }

}