display popup window in android

This program is for display a popup window in android

Step 1) Your main java file is here

package al.ert;

import android.app.Activity;

import android.app.AlertDialog;

import android.content.DialogInterface;

import android.os.Bundle;

import android.widget.TextView;

public class AlertActivity extends Activity {

    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

       

       

        AlertDialog.Builder adb = new AlertDialog.Builder(this);

        adb.setTitle("Title of the window");

        adb.setMessage("Message of the window");

       

        final TextView tv=(TextView)findViewById(R.id.textView1);

       

        adb.setPositiveButton("Ok", new DialogInterface.OnClickListener()

{

public void onClick(DialogInterface dialog, int id)

        {

    //Action for 'Ok' Button

                tv.setText("You have clicked ok");

                        }

        });

       

       

        adb.setNegativeButton("Cancel", new DialogInterface.OnClickListener()

         {

                        public void onClick(DialogInterface dialog, int id)

                                        {

                                        // Action for 'Cancel' Button

                                                                                tv.setText("You have clicked Cancel");

                                        dialog.cancel();

                        }

        });

        adb.setIcon(R.drawable.icon);

adb.show();

    }

}

Step 2) Content of main.xml file

<?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"

    android:weightSum="1">

<TextView 

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:text="@string/hello"

    />

<TextView android:id="@+id/textView1" android:text="TextView" android:layout_height="wrap_content" android:layout_weight="0.05" android:layout_width="156dp"></TextView>

</LinearLayout>