Dynamically Adding the List item through edit text

How to add list items dynamically using edit text

Here we'll add List items dynamically by using edit text and a button.

1.activity_main.xml

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

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent" >

    <EditText

        android:id="@+id/edt"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:inputType="text" />

    <Button

        android:id="@+id/btn"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_below="@+id/edt"

        android:text="Add To list" />

    <ListView

        android:id="@+id/listView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_below="@+id/btn"

        android:layout_centerHorizontal="true"

        android:layout_centerVertical="true" >

    </ListView>

</RelativeLayout>

2.MainActivity.java

package com.sri.listview;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.EditText;

import android.widget.ListView;

import android.widget.Toast;

public class MainActivity extends Activity {

ListView lvList;

EditText ed;

Button bt;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

ed = (EditText) findViewById(R.id.edt);

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

lvList = (ListView) findViewById(R.id.listView1);

final ArrayAdapter<String> adapter = new ArrayAdapter<String>(

getApplicationContext(), android.R.layout.simple_list_item_1);

bt.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

String str = ed.getText().toString();

if (str != null)

adapter.add(str);

ed.setText("");

Toast.makeText(getApplicationContext(), "successfully added", Toast.LENGTH_SHORT).show();

}

});

lvList.setAdapter(adapter);

}

}

3.That's all now run your project.this will add the text item entered  in edit text to the list view.