android - Blank white space around Timepicker dialog -

i trying create time picker application.. , when setting theme theme_devicedefault_light_dialog_noactionbar_minwidth

i getting output

i getting blank space around dialog box

this not happening when setting use parent activity's theme appcompat.noactionbar

//not happening here   return new timepickerdialog(getactivity(),this, hour, minute,is24hourview ); 

here timepicker code

    public class timepickerfragment extends dialogfragment implements timepickerdialog.ontimesetlistener{      @override     public dialog oncreatedialog(bundle savedinstancestate){         //use current time default values time picker         final calendar c = calendar.getinstance();         int hour = c.get(calendar.hour_of_day);         int minute = c.get(calendar.minute);          boolean is24hourview=true;         simpledateformat sdf = new simpledateformat("hh:mm");         string formattedtime = sdf.format(c.gettime());         log.d("time", formattedtime);         //create , return new instance of timepickerdialog //        return new timepickerdialog(getactivity(),this, hour, minute,is24hourview );       return new timepickerdialog(getactivity(), android.r.style.theme_devicedefault_light_dialog_noactionbar_minwidth,this, hour, minute,is24hourview );      } 

change:

 android.r.style.theme_devicedefault_light_dialog_noactionbar_minwidth 

with

 alertdialog.theme_device_default_light 

or

 alertdialog.theme_holo_light 

it should work