android - trying to receive data from php file - app crashes

Question

I'm trying to receive data from remote server and insert the data to variable "respond" but the app crashes... I don't have log , because my emulator doesnt work, and sdk driver's for my phone also doesnt work, so I install the apk file via usb cable... the compiler doesn't show error. thanks for help

public class MainActivity extends Activity {

String serverURL = "http://www.adoninetwork.com/index.html";
String respond = "test";



@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    this.setContentView(R.layout.activity_main);


    HttpClient httpclient = new DefaultHttpClient();
    HttpPost httppost = new HttpPost(serverURL);

    ResponseHandler<String> responseHandler = new BasicResponseHandler();
    try {
         respond = httpclient.execute(httppost, responseHandler);
    } catch (ClientProtocolException e) {
        // TODO Auto-generated catch block
    } catch (IOException e) {
        // TODO Auto-generated catch block
    } 



    new AlertDialog.Builder(this).setMessage(respond).show();

To get logs via usb cable, use the command `adb logcat`. That should get you your error. — Andrew Schuster, Jul 15 '14 at 14:34
possible duplicate of [android.os.NetworkOnMainThreadException](http://stackoverflow.com/questions/6343166/android-os-networkonmainthreadexception) — laalto, Jul 17 '14 at 09:57

score 1 · Accepted Answer · answered Jul 15 '14 at 14:52

You do a network connection on the Main Thread and Android don't allow that, so the system kill your app. You probably have the error NetworkOnMainThreadException

You have to use a AsyncTask (tutorial here) or the Google library Volley (documentation here).

Add your log if you want more explanation :)

score 0 · Answer 2 · answered Jul 15 '14 at 15:35

0

check permission in manifest-

<uses-permission android:name="android.permission.INTERNET" />

answered Jul 15 '14 at 15:35

Ratul Ghosh

1,512
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android - trying to receive data from php file - app crashes

2 Answers2