Question

我有widgetProvider和GetData类。

点击按钮后，我必须这样做 1.运行onUpdate（）

禁用按钮并显示进度条
发送网址请求
- 显示按钮并隐藏进度条

在appProvider onUpdate中我有代码

rv.setInt(R.id.updateProgressBar, "setVisibility", View.VISIBLE);
rv.setInt(R.id.BtnUpdate, "setVisibility", View.GONE);

// Here I invoke method with http request from GetData class
JSONArray data = getData.get();

// Here is all correct, data comes well
Log.d(LOG_TAG, "Get data: " + data.toString());

// This runs before data is ready
rv.setInt(R.id.updateProgressBar, "setVisibility", View.GONE);
rv.setInt(R.id.BtnUpdate, "setVisibility", View.VISIBLE);

GetData类，方法get（）

public JSONArray get() throws JSONException {

        StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
        StrictMode.setThreadPolicy(policy);

        HttpClient httpclient = new DefaultHttpClient();
        String Url = "http://url";
        HttpGet httpget = new HttpGet(Url);
        JSONArray res = null;

        try{
            httpget.setHeader("Accept", "application/json");
            httpget.setHeader("Content-type", "application/json");
            HttpResponse response = httpclient.execute(httpget);

            if(response != null)
            {
                InputStream is = response.getEntity().getContent();
                BufferedReader reader = new BufferedReader(new InputStreamReader(is));
                String json = reader.readLine();
                JSONTokener tokener = new JSONTokener(json);
                res = new JSONArray(tokener);
            }

        }catch (ClientProtocolException e) {

        } catch (IOException e) {

        }
        return res;
    }

问题是显示隐藏后按钮后退隐藏。它不会等待回应。我做错了什么？也许我需要使用某种承诺？

向上

在url请求完成之前，Android小部件remoteView会更新

0 个答案: