import android.view.ViewRoot;

View.getRootView()

Log.d(TAG, "traversing parents of " + currentView);
ViewParent vp = currentView.getParent();
View rootView = currentView.getRootView();
while (vp != null) {
    Log.d(TAG, "Parent: " + vp);
    vp = vp.getParent();
    if (vp.equals(rootView))
        break;
}