Android Activity with ProgressBar below the ActionBar

activity_progress.xml

<LinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

    <ProgressBar
            android:id="@+id/activity_progress_progress_bar"
            style="@style/Widget.Sherlock.ProgressBar.Horizontal"
            android:visibility="gone"
            android:layout_height="wrap_content"
            android:layout_width="match_parent"/>

    <FrameLayout
            android:id="@+id/activity_progress_container"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>

</LinearLayout>

ProgressActivity.java

public class ProgressActivity extends SherlockFragmentActivity {
    private ProgressBar mProgressBar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        super.setContentView(R.layout.activity_progress);
        mProgressBar = (ProgressBar) findViewById(R.id.activity_progress_progress_bar);
    }
    
    @Override
    public void setContentView(int layoutResID) {
        LayoutInflater inflater = (LayoutInflater) getSystemService (Context.LAYOUT_INFLATER_SERVICE);
        ViewGroup container = (ViewGroup) findViewById(R.layout.activity_progress_container);
        inflater.inflate(layoutResID, container, true);
    }

    public void setCustomProgressBarVisibility(boolean visible) {
        mProgressBar.setVisibility(visible ? View.VISIBLE : View.GONE);
    }

    public void setCustomProgressBarIntermediate(boolean intermediate) {
        mProgressBar.setIndeterminate(intermediate);
    }

    public void setCustomProgessBarProgress(int progress) {
        mProgressBar.setProgress(progress);
    }
}