Android-debug_children_hierarchy.java

private void debug(int level, ViewGroup view) {
    for (int childIndex = 0; childIndex < view.getChildCount(); childIndex++) {
        View child = view.getChildAt(childIndex);
        String tab = "";
        for (int x = 0; x < level; x++) {
            tab += "  ";
        }
        Log.d("XXXXXXXXXXX", tab + child.getClass() + " | " + child.getId());
        if (child instanceof ViewGroup) {
            debug(level + 1, (ViewGroup) child);
        }
        Log.d("XXXXXXXXXXX", tab + "! " + child.getClass());
    }
}

/* From Activity
debug(0, (ViewGroup) findViewById(android.R.id.content));
*/