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原标题:Android fetching xml from aspx web service

I m trying to fetch an xml from a web service from android application. I m running this code but the error message is The application has stopped unexpectedly. Please try again . I m not sure that it s an application exception because every peace of code is in try block. What is the mistake?

    public class AndroidTest extends Activity {

             private static final String URL = "http://webservice.url/is/here.aspx";
             TextView v;

            public void onCreate(Bundle savedInstanceState) {
            try {
                super.onCreate(savedInstanceState);
                v = new TextView(this);
                setContentView(v);
                new Obtainer().execute();
            } catch (Exception ex) {
                Toast.makeText(this, ex.toString(), Toast.LENGTH_LONG).show();
            }
        }

        private class Obtainer extends AsyncTask<Void, Void, Void> {

            protected Void doInBackground(Void... params) {
                BufferedReader in = null;
                try {
                    HttpClient client = new DefaultHttpClient();
                    HttpGet request = new HttpGet();
                    request.setURI(new URI(URL));
                    HttpResponse response = client.execute(request);
                    in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
                    StringBuffer sb = new StringBuffer("");
                    String line = "";
                    while ((line = in.readLine()) != null) {
                        sb.append(line + "
");
                    }
                    in.close();
                    v.setText(sb.toString());
                } catch (Exception ex) {
                    Toast.makeText(getApplicationContext(), ex.toString(), Toast.LENGTH_LONG).show();
                }
                return null;
            }
        }
    }

EDIT: now it throws an exception android.os.NetworkOnMainThreadException although this class (Obtainer) was created to fix it.

最佳回答

答案非常容易,我们无法在非自食其力中展示托阿斯特方法,我们也不能在其中使用文本。

问题回答

暂无回答




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