Question

我试图在我的Android应用程序中使用jsoup库，我想在描述类中获取str1的值，并在MyAdapter类中将其用作items.add（new Item（str1，R.drawable.flag_one））;我无法弄明白，任何帮助都非常感谢

public class HomeFragment extends Fragment {

// URL Address
String url = "http://www.livescore.com";

public HomeFragment(){}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {

    final View rootView = inflater.inflate(R.layout.fragment_home, container, false);

    getOverFlowMenu();

    GridView gridView = (GridView)rootView.findViewById(R.id.gridview);
    gridView.setAdapter(new MyAdapter(rootView.getContext()));

    new Description();

    return rootView;

}

private void getOverFlowMenu() {

}

//Description async task
class Description extends AsyncTask<Void, Void, Void>{
    String desc;
    @Override
    protected Void doInBackground(Void... voids) {
        try{
            // Connect to the web site
            Document document = Jsoup.connect(url).get();

            Element content = document
                    .body().getElementsByClass("kubrick-info__title").first();
            // Locate the content attribute
            desc = content.text();

        }catch (IOException e){
            e.printStackTrace();
        }
        return null;
    }
    @Override
    protected void onPostExecute(Void result){
        // Set description into TextView
        String str1 = desc;
    }
}

private class MyAdapter extends BaseAdapter
{
    private List<Item> items = new ArrayList<Item>();
    private LayoutInflater inflater;

    public MyAdapter(Context context)
    {
        inflater = LayoutInflater.from(context);

        items.add(new Item(str1, R.drawable.flag_one));
        items.add(new Item("teams", R.drawable.flag_two));
    }

    @Override
    public int getCount() {
        return items.size();
    }

    @Override
    public Object getItem(int i)
    {
        return items.get(i);
    }

    @Override
    public long getItemId(int i)
    {
        return items.get(i).drawableId;
    }

}

Answer 1

您可以在static String str1 = ""下方的顶部声明public class HomeFragment extends Fragment吗？然后在onPostExecute方法中：

@Override
protected void onPostExecute(Void result){
    // Set description into TextView
    str1 = desc;
}

这个想法是，如果String声明在顶部，它将在整个HomeFragment类中可见。

在两种不同的方法中使用变量

1 个答案: