I get NetworkOnMainThreadExeption when using kevinsawickis http-request class

Question

I am using https://github.com/kevinsawicki/http-request and I am trying to use one of the examples from it. This is my Android code:

try{
 String response = HttpRequest.get("http://google.com").body();
 System.out.println("Response was: " + response);
}
catch (NetworkOnMainThreadException e){
 Toast.makeText(this, e.toString(), Toast.LENGTH_LONG).show();
}

I get this error: Android.os.NetworkOnMainThreadExeption. And from my Android Monitor I get:

FATAL EXCEPTION: main Process: com.nettport.dietbystram.dietbystram, PID: 11523 java.lang.RuntimeException: Unable to start activity ComponentInfo{SignUp}: android.os.NetworkOnMainThreadException at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2817) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892) at android.app.ActivityThread.-wrap11(Unknown Source:0) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593) at android.os.Handler.dispatchMessage(Handler.java:105) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6540) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) Caused by: android.os.NetworkOnMainThreadException at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1425) at java.net.Inet6AddressImpl.lookupHostByName(Inet6AddressImpl.java:102) at java.net.Inet6AddressImpl.lookupAllHostAddr(Inet6AddressImpl.java:90) at java.net.InetAddress.getAllByName(InetAddress.java:787) at com.android.okhttp.Dns$1.lookup(Dns.java:39) at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:175) at com.android.okhttp.internal.http.RouteSelector.nextProxy(RouteSelector.java:141) at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:83) at com.android.okhttp.internal.http.StreamAllocation.findConnection(StreamAllocation.java:174) at com.android.okhttp.internal.http.StreamAllocation.findHealthyConnection(StreamAllocation.java:126) at com.android.okhttp.internal.http.StreamAllocation.newStream(StreamAllocation.java:95) at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:281) at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:224) at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:461) at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:407) at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getHeaders(HttpURLConnectionImpl.java:163) at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getHeaderField(HttpURLConnectionImpl.java:207) at mypackage.HttpRequest.header(HttpRequest.java:2093) at mypackage.HttpRequest.parameter(HttpRequest.java:2188) at mypackage.HttpRequest.charset(HttpRequest.java:2298) at mypackage.HttpRequest.body(HttpRequest.java:1758) at mypackage.SignUp.sendToPHP(SignUp.java:1529) at mypackage.SignUp.onCreate(SignUp.java:81) at android.app.Activity.performCreate(Activity.java:6980) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1213) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2770) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892) at android.app.ActivityThread.-wrap11(Unknown Source:0) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593) at android.os.Handler.dispatchMessage(Handler.java:105) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6540) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)

Try to do this in background not on main thread – MRX Jun 27 '17 at 07:43 — MRX, Jun 27 '17 at 07:43
Try to add your HttpRequest in async task – Yyy Jun 27 '17 at 07:43 — Yyy, Jun 27 '17 at 07:43

score 2 · Accepted Answer · answered Jun 27 '17 at 07:46

2

Perform the same in this

     private class LongOperation extends AsyncTask<String, Void, String> {

        @Override
        protected String doInBackground(String... params) {
           String response = HttpRequest.get("http://google.com").body();
 System.out.println("Response was: " + response);
            return response ;
        }

        @Override
        protected void onPostExecute(String result) {

        }

        @Override
        protected void onPreExecute() {}

        @Override
        protected void onProgressUpdate(Void... values) {}
    }

Start it in your onCreate like this new LongOperation().execute("");

answered Jun 27 '17 at 07:46

MRX

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Should I build a LongOperation for every thing I want to check? Example LongOperationIsEmailTaken, LongOperationRegisterNewUser, LongOperationCheckLogin etc – Solo Jun 27 '17 at 14:24
1

There are example where you can make generic Asych task. You can google it for more results. Else If you think that anything which takes time and can be done in background should either be in asych task , services , threads or third party library such as Bolt : https://github.com/BoltsFramework/Bolts-Android – MRX Jun 28 '17 at 05:49

I get NetworkOnMainThreadExeption when using kevinsawickis http-request class

1 Answers1