Anmeldung Twitter den Fehler „android.os.NetworkOnMainThreadException“ zeigen

Question

ich eine haben zu entwickeln application.Now Ich versuche, die Twitter in meinem application.My Problem zu integrieren ist, wenn ich die Anwendung anmelden zeigen es "android.os.NetworkOnMainThreadException" „bei android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)".

Bitte jemand mir helfen, danke ...

import twitter4j.Twitter; 
import twitter4j.TwitterException; 
import twitter4j.TwitterFactory; 
import twitter4j.auth.RequestToken; 
import twitter4j.conf.ConfigurationBuilder; 
import android.app.Activity; 
import android.content.Intent; 
import android.content.SharedPreferences; 
import android.net.Uri; 
import android.os.Bundle; 
import android.view.Menu; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.Toast; 

public class TwitterActivity extends Activity { 
    static final String CONSUMER_KEY="my consumer key"; 
    static final String CONSUMER_SECRETKEY="my secret key"; 
    Button buttonLoginTwitter; 
    SharedPreferences sharedpref; 
    Twitter twitter; 
    private static RequestToken requestToken; 
    static final String TWITTER_CALLBACK_URL = "oauth://t4jsample"; 
    static final String ISTWITTERLOGIN="isTwitterLogedIn"; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_twitter); 
     buttonLoginTwitter=(Button)findViewById(R.id.btnidLogin); 
     sharedpref=getApplicationContext().getSharedPreferences("mypreference", 0); 
     TwitterLogin(); 
    } 
    private void TwitterLogin() { 
     buttonLoginTwitter.setOnClickListener(new OnClickListener() { 
      @Override 
      public void onClick(View v) { 

       if(!istwitterLogin()) 
       { 
        ConfigurationBuilder builder = new ConfigurationBuilder(); 
        builder.setOAuthConsumerKey(CONSUMER_KEY); 
        builder.setOAuthConsumerSecret(CONSUMER_SECRETKEY); 
        twitter4j.conf.Configuration configuration=builder.build(); 
        TwitterFactory factory = new TwitterFactory(configuration); 
        twitter = factory.getInstance(); 

         try { 
          requestToken = twitter 
            .getOAuthRequestToken(TWITTER_CALLBACK_URL); 
          TwitterActivity.this.startActivity(new Intent(Intent.ACTION_VIEW, Uri 
            .parse(requestToken.getAuthenticationURL()))); 
         } catch (TwitterException e) { 
          e.printStackTrace(); 
         } 
       } 
       else { 
        Toast.makeText(getApplicationContext(),"Already Logged into twitter", Toast.LENGTH_LONG).show(); 
       } 
      } 
     }); 
    } 
    protected boolean istwitterLogin() { 
     return sharedpref.getBoolean(ISTWITTERLOGIN, false); 
    } 
    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.twitter, menu); 
     return true; 
    } 

} 

Wenn ich versuche ich diese Fehlermeldung bekam einzuloggen:

E/AndroidRuntime(5946): FATAL EXCEPTION: main 
E/AndroidRuntime(5946): android.os.NetworkOnMainThreadException 
E/AndroidRuntime(5946): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117) 
E/AndroidRuntime(5946): at java.net.InetAddress.lookupHostByName(InetAddress.java:385) 
E/AndroidRuntime(5946): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236) 
E/AndroidRuntime(5946): at java.net.InetAddress.getAllByName(InetAddress.java:214) 
E/AndroidRuntime(5946): at libcore.net.http.HttpConnection.<init>(HttpConnection.java:70) 
E/AndroidRuntime(5946): at libcore.net.http.HttpConnection.<init>(HttpConnection.java:50) 
E/AndroidRuntime(5946): at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:341) 
E/AndroidRuntime(5946): at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:87) 
E/AndroidRuntime(5946): at libcore.net.http.HttpConnection.connect(HttpConnection.java:128) 
E/AndroidRuntime(5946): at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:315) 
E/AndroidRuntime(5946): at libcore.net.http.HttpEngine.connect(HttpEngine.java:310) 
E/AndroidRuntime(5946): at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:289) 
E/AndroidRuntime(5946): at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:239) 
E/AndroidRuntime(5946): at libcore.net.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:80) 
E/AndroidRuntime(5946): at libcore.net.http.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:188) 
E/AndroidRuntime(5946): at twitter4j.internal.http.HttpClientImpl.request(HttpClientImpl.java:158) 
E/AndroidRuntime(5946): at twitter4j.internal.http.HttpClientWrapper.request(HttpClientWrapper.java:65) 
E/AndroidRuntime(5946): at twitter4j.internal.http.HttpClientWrapper.post(HttpClientWrapper.java:102) 
E/AndroidRuntime(5946): at twitter4j.auth.OAuthAuthorization.getOAuthRequestToken(OAuthAuthorization.java:121) 
E/AndroidRuntime(5946): at twitter4j.auth.OAuthAuthorization.getOAuthRequestToken(OAuthAuthorization.java:104) 
E/AndroidRuntime(5946): at twitter4j.TwitterBaseImpl.getOAuthRequestToken(TwitterBaseImpl.java:276) 
E/AndroidRuntime(5946): at com.androidhive.twitterconnect.MainActivity.loginToTwitter(MainActivity.java:236) 
E/AndroidRuntime(5946): at com.androidhive.twitterconnect.MainActivity.access$1(MainActivity.java:223) 
E/AndroidRuntime(5946): at com.androidhive.twitterconnect.MainActivity$1.onClick(MainActivity.java:123) 
E/AndroidRuntime(5946): at android.view.View.performClick(View.java:4084) 
E/AndroidRuntime(5946): at android.view.View$PerformClick.run(View.java:16966) 
E/AndroidRuntime(5946): at android.os.Handler.handleCallback(Handler.java:615) 
E/AndroidRuntime(5946): at android.os.Handler.dispatchMessage(Handler.java:92) 
E/AndroidRuntime(5946): at android.os.Looper.loop(Looper.java:137) 
E/AndroidRuntime(5946): at android.app.ActivityThread.main(ActivityThread.java:4745) 
E/AndroidRuntime(5946): at java.lang.reflect.Method.invokeNative(Native Method) 
E/AndroidRuntime(5946): at java.lang.reflect.Method.invoke(Method.java:511) 
E/AndroidRuntime(5946): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
E/AndroidRuntime(5946): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
E/AndroidRuntime(5946): at dalvik.system.NativeStart.main(Native Method) 
W/ActivityManager( 282): Force finishing activity com.androidhive.twitterconnect/.MainActivity 
D/mobiled--->listener( 76): [Client side (recv_cnt: 3671)]: Data is coming, go to check fd_set. 
D/mobiled--->listener( 76): [Client side (recv_cnt: 3671)]: Find a socket with data, unlock and receive. 
D/mobiled--->netlink_listener( 76): Going to decode uevent. 

Answer 1

Sie haben Diese onCreate() Methode zu überprüfen:

if (android.os.Build.VERSION.SDK_INT > "YOur minimum SDK Version here") { 
     StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder() 
       .permitAll().build(); 
     StrictMode.setThreadPolicy(policy); 
    } 

Und Erlaubnis .. wird zu manifestieren hinzufügen

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

Answer 2

Diese Ausnahme wird ausgelöst, wenn eine Anwendung versucht, einen Netzwerkbetrieb auf seinem Haupt-Thread auszuführen. Führen Sie den Code in AsyncTask:

class RetreiveFeedTask extends AsyncTask<String, Void, RSSFeed> { 

    private Exception exception; 

    protected RSSFeed doInBackground(String... urls) { 
     try { 
      URL url= new URL(urls[0]); 
      SAXParserFactory factory =SAXParserFactory.newInstance(); 
      SAXParser parser=factory.newSAXParser(); 
      XMLReader xmlreader=parser.getXMLReader(); 
      RssHandler theRSSHandler=new RssHandler(); 
      xmlreader.setContentHandler(theRSSHandler); 
      InputSource is=new InputSource(url.openStream()); 
      xmlreader.parse(is); 
      return theRSSHandler.getFeed(); 
     } catch (Exception e) { 
      this.exception = e; 
      return null; 
     } 
    } 

    protected void onPostExecute(RSSFeed feed) { 
     // TODO: check this.exception 
     // TODO: do something with the feed 
    } 
} 

Wie die Aufgabe auszuführen:

new RetreiveFeedTask().execute(urlToRssFeed); 

Vergessen Sie nicht dies zu AndroidManifest.xml Datei hinzufügen:

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

Answer 3

Sie machen Ihre Verbindung am Haupt-Thread. Der gesamte Code in der Methode TwitterLogin() sollte entweder in einen Thread geschrieben werden oder eine Async-Task starten.

Answer 4

Fügen Sie einfach den folgenden Code in der oncreate off Aktivität:

if (android.os.Build.VERSION.SDK_INT > 8) { 
     StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build(); 
     StrictMode.setThreadPolicy(policy); 
    }