Dialog activity to wrap content

Question

There have been similar questions to this related to dialog activities and how to make these full screen, but I have a slightly different problem. I want these dialogs to wrap the activity content.

Now, the "dialog activities" all inherit the following theme,

<style name="tabDialog" parent="@android:Theme.Dialog">
    <item name="android:windowBackground">@drawable/panel_background</item>
    <item name="android:windowNoTitle">true</item>
    <item name="android:windowFullscreen">false</item>
</style>

Example of activity definition in manifest,

<activity android:name=".TabSettingsActivity"
    android:theme="@style/tabDialog" android:excludeFromRecents="true"
    android:configChanges="keyboardHidden" />

The content view parent view is defined like this,

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content" android:layout_height="wrap_content"
    android:background="@layout/dialog_rounded_background"
    android:orientation="vertical">

and all the child views in the layout also specify wrap_content for both dimensions. I have tried using a RelativeLayout as the parent as well, but same same.

After the content view has been set in onCreate of the activity, I do this

  getWindow().setLayout(LayoutParams.WRAP_CONTENT,
                LayoutParams.WRAP_CONTENT);

None of these things actually seem to make any difference at all. The problem is mostly related to the dialog height, which is about 50% bigger than necessary. Half of the dialog is just dead space. Setting the root view dimensions to hardcoded dp units solves the problem, but this seems like a workaround rather than a solution.

Any ideas anyone?

Thanks in advance.

Cheers