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POError NetworkOnMainThreadException Consuming Restful Webservice using Android Client 4.0
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copied!<p>i have problem regarding my android client.</p> <p>I have a script that consume a restful webservice and determine user authentication here's my code</p> <pre><code>import java.io.IOException; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.HttpClient; import org.apache.http.client.ResponseHandler; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.BasicResponseHandler; import org.apache.http.impl.client.DefaultHttpClient; import android.os.AsyncTask; import android.util.Log; public class RestLogin { private static String URL = "http://REST Webservice here?"; private static final String tag = "Logcat tag: "; public static Boolean Auth(String username,String password) { String result = ""; HttpClient httpclient = new DefaultHttpClient(); HttpGet request = new HttpGet(URL); //adding parameter to request to determine user authentication request.addHeader("username",username); request.addHeader("password",password); //taking handler to get execution status ResponseHandler<String> handler = new BasicResponseHandler(); try { result = httpclient.execute(request, handler); } catch (ClientProtocolException cpe) { cpe.printStackTrace(); } catch (IOException ioe) { ioe.printStackTrace(); } catch(IllegalArgumentException iae) { iae.printStackTrace(); } catch(NullPointerException npe) { npe.printStackTrace(); } httpclient.getConnectionManager().shutdown(); Log.i(tag,result); return Boolean.parseBoolean(result); } </code></pre> <p>}</p> <p>First, when i build the code, it shows error NetworkOnMainThreadException on my logcat status. Then, i find that since google android honeycomb, i can't directly using this method. So i need to add AsyncTask<>, here's the code</p> <pre><code>public class RestLogin extends AsyncTask<String, String, Boolean> { private static String URL = "http://Restful webservice here?"; private static final String tag = "Logcat tag: "; @Override protected Boolean doInBackground(String... params) { //TO DO Auto Generated Method return null; } </code></pre> <p>now i'm stuck, how i can call the Auth() method using AsyncTask? </p> <p>thanks in advance.</p> <p>okay, UPDATE: this is new syntax</p> <pre><code>public class RestLogin extends AsyncTask<Void, Void, Void> { private static String URL = "http://REST Webservice here?"; private static final String tag = "Logcat tag: "; private String usname, psswrd; public RestLogin(String username, String password){ usname = username; psswrd = password; } protected void onPreExecute(){ super.onPreExecute(); } protected Void doInBackground(Void... params) { Boolean stat = Auth(usname,psswrd); return null; } protected void onPostExecute(Void result) { super.onPostExecute(result); } public static Boolean Auth(String username,String password) { String result = ""; HttpClient httpclient = new DefaultHttpClient(); HttpGet request = new HttpGet(URL); //adding parameter to request to determine user authentication request.addHeader("username",username); request.addHeader("password",password); //taking handler to get execution status ResponseHandler<String> handler = new BasicResponseHandler(); try { result = httpclient.execute(request, handler); } catch (ClientProtocolException cpe) { cpe.printStackTrace(); } catch (IOException ioe) { ioe.printStackTrace(); } catch(IllegalArgumentException iae) { iae.printStackTrace(); } catch(NullPointerException npe) { npe.printStackTrace(); } httpclient.getConnectionManager().shutdown(); Log.i(tag,result); return Boolean.parseBoolean(result); } </code></pre> <p>}</p>

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