Make sure that the activity you are calling has the theme attribute
set to Theme.Dialog in the Android Manifest as follows:

android:theme="@android:style/Theme.Dialog"

Rohit


On Feb 11, 7:52 am, Colin <[email protected]> wrote:
> Im also interested in learning how to do this... any ideas?
>
> On Dec 21 2008, 7:25 pm, Ralf <[email protected]> wrote:
>
> > I'm trying to use a PreferenceActivity with prefs inflated from XML
> > and at the same time I'd like the window toblurwhatever was behind
> > (i.e. my previous activity where I invoked the settings from.) I tried
> > something like this below but thebackgroundis always black (or
> > whatever color I select) without anyblur/transparency.
>
> > Is it possible? what am I doing wrong?
>
> > public class PrefsActivity extends PreferenceActivity {
>
> >     @Override
> >         protected void onCreate(Bundle savedInstanceState) {
> >         // Have the systemblurany windows behind this one.
> >         getWindow().setFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND,
> >                 WindowManager.LayoutParams.FLAG_BLUR_BEHIND);
>
> >                 super.onCreate(savedInstanceState);
>
> >                 setTitle(R.string.prefs_title);
> >                 addPreferencesFromResource(R.xml.prefs);
>
> >             View content = findViewById(android.R.id.content);
> >             content.setBackgroundColor(0x7F000000);
>
> >             getListView().setBackgroundColor(0x7F000000);
> >             getListView().setCacheColorHint(0x7F000000);
> >         }
>
> > }
>
> > R/
>
>
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