Date and time picker dialog

I want to create a dialog which can select the time and the date at the same time.
I know that there is not a default widget that can do that on Android. I also know that there are open source projects on how do similar staff. The problem in this project is that in the dialog we have two buttons: datePicker and timePicker.

And that's not what I want to do - I want that the date and time picker appear at the same time.
So I think the two main problem will be:

1. First make the time and date picker appear in the same dialog.
2. And the second problem will be to change the appearance of time and date picker (the orange color).

The first problem was resolved by Bhavesh. Here is what I get:

The problem now is that I want to change all blue bar color to orange color.
I added android:calendarViewShown="false" to remove the calendar in the right :) Thanks Bhavesh and I changed the theme to HOLO
Here is what I get:

You can download the code (that's the best I can do). You can download from here.