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Samebug tips

  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);
    

Solutions on the web

via wordpress.com by Unknown author, 1 year ago
Unable to start activity ComponentInfo{com.example.newsfeed/com.example.newsfeed.MainActivity}: android.os.NetworkOnMainThreadException
via GitHub by Fshamri
, 2 years ago
Unable to start activity ComponentInfo{faiz.com.jsonrpc/faiz.com.jsonrpc.MainActivity}: android.os.NetworkOnMainThreadException
via Stack Overflow by user1879034
, 2 years ago
Unable to start activity ComponentInfo{com.example.posthtml/com.example.posthtml.MainActivity}: android.os.NetworkOnMainThreadException
via Stack Overflow by dcp3450
, 2 years ago
Unable to start activity ComponentInfo{com.library.books/com.library.books.SplashScreen}: android.os.NetworkOnMainThreadException
via Stack Overflow by Wan999
, 2 years ago
Unable to start activity ComponentInfo{com.zeta.e_aduan/com.zeta.e_aduan.MainActivity}: android.os.NetworkOnMainThreadException
via Stack Overflow by ralphie9224
, 1 year ago
Unable to start activity ComponentInfo{rafa.weatherapp/rafa.weatherapp.MainActivity}: android.os.NetworkOnMainThreadException
android.os.NetworkOnMainThreadException: 	at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1128)	at java.net.InetAddress.lookupHostByName(InetAddress.java:385)	at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)	at java.net.InetAddress.getAllByName(InetAddress.java:214)	at libcore.net.http.HttpConnection.(HttpConnection.java:70)	at libcore.net.http.HttpConnection.(HttpConnection.java:50)	at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:340)	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:316)	at libcore.net.http.HttpEngine.connect(HttpEngine.java:311)	at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:290)	at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:240)	at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:282)	at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:177)	at com.example.newsfeed.MainActivity.getInputStream(MainActivity.java:105)	at com.example.newsfeed.MainActivity.onCreate(MainActivity.java:47)	at android.app.Activity.performCreate(Activity.java:5283)	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)