Android Custom Alert Dialog Display Error after changing the Build Version

I am developing one simple demo . Here in this demo i just create one simple custom alert dialog . Its work fine.

It shows me the perfect result when i build application in 1.6, but when i change the android version from 1.6 to 2.2 its shows the unexpected result. It doesn't show the background screen on which i display the custom alert dialog.

Here is my xml file. Custom Dialog Theme File

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

<resources>

    <style name="CustomDialogTheme" parent="@android:style/AlertDialog">

        <item name="android:windowFrame">@null</item>

        <item name="android:windowContentOverlay">@null</item>

        <item name="android:backgroundDimEnabled">true</item>

        <item name="android:windowIsTranslucent">true</item>

        <item name="android:windowNoTitle">true</item>

        <item name="android:windowAnimationStyle">@android:style/Theme.Dialog</item>

    </style>

</resources>

Here is My CustomConfirmOkDialog Class

package com.utility.org;



import android.app.Activity;

import android.app.Dialog;

import android.view.View;

import android.view.Window;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;



    public class CustomConfirmOkDialog extends Dialog implements OnClickListener

    {

        private Button okButton = null;

        private TextView infoText=null,confirmBody=null;

        private int errorMessage=0;

        @SuppressWarnings("unused")

        private Activity activity;



        public CustomConfirmOkDialog(Activity context,int customdialogtheme,int errorMessage) 

        {

            super(context,customdialogtheme);

            requestWindowFeature(Window.FEATURE_NO_TITLE);

            setContentView(R.layout.confirm_ok);

            this.errorMessage = errorMessage;

            this.activity = context;

            initControls();

        }



        private void initControls()

        {

            okButton = (Button) findViewById(R.id.ok_button);

            okButton.setOnClickListener(this);



            infoText = (TextView)findViewById(R.id.infoText);

            confirmBody = (TextView)findViewById(R.id.confirmBody);



            switch (this.errorMessage) 

            {



                case Utility.INVALID_USERNAME_PASSWORD:

                    try

                    {

                        infoText.setText(R.string.signIn);

                        confirmBody.setText(R.string.invalidUsernameAndPassword);

                    }

                    catch (Exception e) 

                    {

                        e.printStackTrace();

                    }

                    break;





                default:

                    break;

            }

        }

        public void onClick(View v) 

        {

            dismiss();

        }

    }

Calling this class from my main activity using the below code.

CustomConfirmOkDialog dialog = new CustomConfirmOkDialog(MainActivity.this, R.style.CustomDialogTheme, Utility.INVALID_USERNAME_PASSWORD);

dialog.show();

Here you can clearly notice that 1st image shows the background . Its build in android 1.6 version while 2nd image doesn't shows the background . It shows the entire black screen. Its build in android version 2.2 . I am very thankful if anyone can solve this issue.

Can anyone help me to solve this simple and silly issue ?

Thanks in Advance.

Source: Tips4all