AlertDialog

//AlertDialoge class


public class AlertDialogManager
{
    public void showAlertDialog(Context context,String title, String message, Boolean status)
    {
        AlertDialog alertDialog = new AlertDialog.Builder(context).create();

        alertDialog.setTitle(title);
        alertDialog.setMessage(message);
        new AlertDialog.Builder(
                  new ContextThemeWrapper(context, android.R.style.Theme_Dialog));

        if(status!=null)
        {
            alertDialog.setIcon((status)? R.drawable.success :R.drawable.fail);
        }

        alertDialog.setButton("OK", new DialogInterface.OnClickListener()
        {
            @Override
            public void onClick(DialogInterface arg0, int arg1)
            {
            }
        });
        alertDialog.show();
    }

}



// call it in any class as you wish like
alert.showAlertDialog(CurrencyConversion.this, "Internet Connection Error", "Please connect to working Internet connection", false);