Adapter notifyDataSetChanged only working when postDelayed

Question

I have a custom base adapter for a ListActivty. I'm trying to update the list after any item is clicked, this is my onListItemClick code:

@Override
protected void onListItemClick(ListView listView, View view, int position, long id) {
    String pkg = mAdapter.getItem(position).toString();
    boolean isProtected = ApplicationUtils.isPackageProtected(this, pkg) != null;
    PreferenceUtils.setPreference(mContext, null, pkg, !isProtected, false);
    mAdapter.notifyDataSetChanged();
}

However, notifyDataSetChanged doesn't updates the list views. As a workaround I fou

@Override
protected void onListItemClick(ListView listView, View view, int position, long id) {
    String pkg = mAdapter.getItem(position).toString();
    boolean isProtected = ApplicationUtils.isPackageProtected(this, pkg) != null;
    PreferenceUtils.setPreference(mContext, null, pkg, !isProtected, false);
    Handler adapterHandler = new Handler();
    adapterHandler.postDelayed(new Runnable() {
        @Override
        public void run() {
            mAdapter.notifyDataSetChanged();
        }
    }, 500);
}

Can someone explain me why does this happens and tell me if is there any other solution?

Thanks.

Answer 1

It was a bug on a sample code I'm using. I fixed it. Check the last comments on this gist for more info, and this gist for the fix