Try this link:

This is for DialogPreference

http://stackoverflow.com/questions/5722531/how-to-access-widgets-in-a-custom-dialogpreference-with-a-inflated-layout

And also you set background for layout Which you set the layout for 
DialogPreference

I hope this will help to you

Regards
Android developer
Trinay Technology Solutions
www.trinaytech.com
5705750475



On Tuesday, February 19, 2013 4:59:43 PM UTC+5:30, Filipe Batista wrote:
>
> Hi,
>
> I have a custom DialogPreference where i have set my layout (*
> setDialogLayoutResource*), but the Dialog shows the "default" black 
> background around the layout.
> How can i remove that black background?
>
> I have already tried in the *showDialog(Bundle state) *method something 
> like this:
>
>>
>> getDialog().getWindow().setBackgroundDrawableResource(android.R.color.transparent);
>
>
> But it didn't work...
>
> Thanks.
>

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