Alert Dialog Box or Confirmation Box in Android

Hello Friends !

    This is a very useful demo for how to create Alert Dialog Box or Confirmation Box in Android.

1-PrintScreen:

2-AlertDialogActivity.java

package com.manish.dialogbox;

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.Button;
import android.widget.Toast;

public class AlertDialogActivity extends Activity {

       /** Called when the activity is first created. */
       @Override
       public void onCreate(Bundle savedInstanceState) {
              super.onCreate(savedInstanceState);
              setContentView(R.layout.main);
              Button btn = (Button) findViewById(R.id.button1);
              btn.setOnClickListener(new OnClickListener() {

                     @Override
                     public void onClick(View v) {
                           // TODO Auto-generated method stub
                           alertMessage();
                     }
              });
       }

       public void alertMessage() {
              DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() {
                     public void onClick(DialogInterface dialog, int which) {
                           switch (which) {
                           case DialogInterface.BUTTON_POSITIVE:
                                  // Yes button clicked
                                  Toast.makeText(AlertDialogActivity.this, "Yes Clicked",
                                                Toast.LENGTH_LONG).show();
                                  break;

                           case DialogInterface.BUTTON_NEGATIVE:
                                  // No button clicked
                                  // do nothing
                                  Toast.makeText(AlertDialogActivity.this, "No Clicked",
                                                Toast.LENGTH_LONG).show();
                                  break;
                           }
                     }
              };

              AlertDialog.Builder builder = new AlertDialog.Builder(this);
              builder.setMessage("Are you sure?")
                           .setPositiveButton("Yes", dialogClickListener)
                           .setNegativeButton("No", dialogClickListener).show();
       }
}

3-main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <Button
        android:id="@+id/button1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Delete" />

</LinearLayout>

4-manifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.manish.dialogbox"
    android:versionCode="1"
    android:versionName="1.0" >
    <uses-sdk android:minSdkVersion="15" />
    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:label="@string/app_name"
            android:name=".AlertDialogActivity" >
            <intent-filter >
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>

Thanks..

You might also like:
1)http://www.androidhub4you.com/2012/09/menu-dialog-demo-in-android.html

2)http://www.androidhub4you.com/2012/07/how-to-create-popup-window-in-android.html