dialog style에서 actionbar 사용하기

<style name="PopupTheme" parent="android:Theme.Holo.Light.Dialog">
<item name="android:windowIsFloating">false</item>
<item name="android:windowContentOverlay">@null</item>
<item name="android:windowSoftInputMode">stateAlwaysHidden</item>
<item name="android:windowActionModeOverlay">true</item>
<item name="android:windowIsTranslucent">true</item>
</style>

public static void showAsPopup(Activity activity) {
//To show activity as dialog and dim the background, you need to declare android:theme="@style/PopupTheme" on for the chosen activity on the manifest
activity.requestWindowFeature(Window.FEATURE_ACTION_BAR);
activity.getWindow().setFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND,
WindowManager.LayoutParams.FLAG_DIM_BEHIND);
LayoutParams params = activity.getWindow().getAttributes();
params.height = LayoutParams.FILL_PARENT;
params.width = 850; //fixed width
params.alpha = 1.0f;
params.dimAmount = 0.5f;
activity.getWindow().setAttributes((android.view.WindowManager.LayoutParams) params);
}