MainActivity2.class
ArrayList<String> listItems;
ArrayAdapter<String> adapter;
listView = (ListView)findViewById(R.id.listView);
listItems=new ArrayList<String>();
AsyncGetNews getnewstask = new AsyncGetNews();
getnewstask.execute();
adapter.notifyDataSetChanged();
listView.setAdapter(adapter);

private class AsyncGetNews extends AsyncTask<String,Void,Void> {
    @Override
    protected Void doInBackground(String... params) {
        SoapReq so = new SoapReq();
        Helper hp = new Helper();
        String[] temp = so.getLatestNews();
        adapter = new ArrayAdapter<String>(MainActivity2.this, R.layout.simple_list_item_1, listItems);
        for (String s : temp)
            listItems.add(s);
        return null;
    }
}