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  1. ,
    via Stack Overflow by Razgriz

    Happens when you make a network call on the main UI thread of the Android application which results in a UI freeze until the network call is complete and the response is received. Instead, execute the network calls in the background: use AsyncTask.

  2. ,

    An alternative for just getting rid of the Exception is use StrictMode.ThreadPolicy to force execute on main thread.

    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
    StrictMode.setThreadPolicy(policy);
    

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via Stack Overflow by skynyrd
, 1 year ago
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, 2 years ago
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, 2 years ago
This exception has no message.
via Google Groups by Kumamoto Shingo, 7 months ago
via Stack Overflow by Rob
, 2 years ago
via Stack Overflow by Unknown author, 2 years ago
This exception has no message.
android.os.NetworkOnMainThreadException: 	at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)	at java.net.InetAddress.lookupHostByName(InetAddress.java:385)	at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)	at java.net.InetAddress.getAllByName(InetAddress.java:214)	at libcore.net.http.HttpConnection.(HttpConnection.java:70)	at libcore.net.http.HttpConnection.(HttpConnection.java:50)	at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:341)	at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:87)	at libcore.net.http.HttpConnection.connect(HttpConnection.java:128)	at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:315)	at libcore.net.http.HttpEngine.connect(HttpEngine.java:310)	at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:289)	at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:239)	at libcore.net.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:80)	at org.ksoap2.transport.ServiceConnectionSE.connect(ServiceConnectionSE.java:76)	at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:146)	at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:95)	at com.example.webserviceexample.MainActivity$1.onClick(MainActivity.java:61)	at android.view.View.performClick(View.java:4084)	at android.view.View$PerformClick.run(View.java:16966)	at android.os.Handler.handleCallback(Handler.java:615)	at android.os.Handler.dispatchMessage(Handler.java:92)	at android.os.Looper.loop(Looper.java:137)	at android.app.ActivityThread.main(ActivityThread.java:4745)	at java.lang.reflect.Method.invokeNative(Native Method)	at java.lang.reflect.Method.invoke(Method.java:511)	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)	at dalvik.system.NativeStart.main(Native Method)