a demonstration of confirm dialog.

MyDialog.java

import android.app.*;
import android.os.*;
import android.content.*;

public class MyDialog extends DialogFragment {
 public static final int YES = 1, NO = 0, CANCEL = 2;
 private String title, message;
 private OnDismissListener listener;
 private FragmentManager fragmentManager;

 public MyDialog(FragmentManager fragmentManager, String title, String message) {
	this.title = title;
	this.fragmentManager = fragmentManager;
	this.message = message;
	listener = null;
 }

 @Override
 public Dialog onCreateDialog(Bundle savedInstanceState) {
	// TODO: Implement this method
	AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
	builder.setTitle(title)
	 .setMessage(message)
	 .setPositiveButton("Yes", new DialogInterface.OnClickListener(){

		@Override
		public void onClick(DialogInterface p1, int p2) {
		 // TODO: Implement this method
		 listener.onDismiss(YES);
		} 
	 })
	 .setNeutralButton("Cancel", new DialogInterface.OnClickListener(){

		@Override
		public void onClick(DialogInterface p1, int p2) {
		 // TODO: Implement this method
		 listener.onDismiss(CANCEL);
		}
	 })
	 .setNegativeButton("No", new DialogInterface.OnClickListener(){

		@Override
		public void onClick(DialogInterface p1, int p2) {
		 // TODO: Implement this method
		 listener.onDismiss(NO);
		}
	 });
	return builder.create();
 }

 public void show() {
	show(fragmentManager, "");
 }

 public void setOnDismissListener(MyDialog.OnDismissListener listener) {
	this.listener = listener;
 }

 // listener interface
 public interface OnDismissListener {
	public void onDismiss(int confirm);
 }

}