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我正在开发一个 android 应用程序,它会从网页中获取源代码,然后对其进行解析。

只要我的设备连接到开发它的电脑,我就可以让它工作,但是,当我尝试在与电脑断开连接的情况下运行它时,它似乎无法检索信息。有人可以告诉我我做错了什么吗?

要获取源代码,我通过 AsyncTask 使用以下代码:

private String downloadUrl(String myurl) throws IOException {
    InputStream is = null;

    try {
        URL url                 = new URL(myurl);
        HttpURLConnection conn  = (HttpURLConnection) url.openConnection();
        conn.setReadTimeout(20000 /* milliseconds */);
        conn.setConnectTimeout(25000 /* milliseconds */);
        conn.setRequestMethod("GET");
        conn.setDoInput(true);

        // Starts the query
        conn.connect();
        response = conn.getResponseCode();
        Log.d(DEBUG_TAG, "The response is: " + response);

        if (response == 200) {

            is = conn.getInputStream();

            BufferedReader buffer = new BufferedReader(new InputStreamReader(is, "ISO-8859-1"));

            // Convert the InputStream into a string
            String s = "";
            while ((s = buffer.readLine()) != null) {
                myTextView.append(s);
                myTextView.append("\n");

            }

            conn.disconnect();
            is.close();
            return myTextView.getText().toString();
        } else {
            conn.disconnect();
            return "";
        }


    } finally {
        if (is != null) {
            is.close();

        } 
    }
}
4

1 回答 1

1

似乎在我对 ASyncTask 的调用中,以下行是让设备等待计算机连接。

android.os.Debug.waitForDebugger();
于 2013-04-11T11:10:50.800 回答