java - Reading text file from url gives IllegalStateException -


i trying read text file url string in android. have tried multiple codes, , using one:

bufferedreader in = new bufferedreader(new inputstreamreader(new url("https://wordpress.org/plugins/about/readme.txt").openstream()));

every single code has given me illegalstateexception in line. have following permissions:

<uses-permission android:name="android.permission.internet"></uses-permission> <uses-permission android:name="android.permission.access_network_state"></uses-permission> <uses-permission android:name="android.permission.read_phone_state"></uses-permission> <uses-permission android:name="android.permission.write_external_storage" />

i hope can give me explanation why happening. here full error:

fatal exception: main process: com.example.myapp, pid: 15407 java.lang.illegalstateexception: not execute method of activity     @ android.view.view$1.onclick(view.java:3996)     @ android.view.view.performclick(view.java:4710)     @ android.view.view$performclick.run(view.java:19510)     @ android.os.handler.handlecallback(handler.java:733)     @ android.os.handler.dispatchmessage(handler.java:95)     @ android.os.looper.loop(looper.java:146)     @ android.app.activitythread.main(activitythread.java:5679)     @ java.lang.reflect.method.invokenative(native method)     @ java.lang.reflect.method.invoke(method.java:515)     @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:1291)     @ com.android.internal.os.zygoteinit.main(zygoteinit.java:1107)     @ dalvik.system.nativestart.main(native method) caused by: java.lang.reflect.invocationtargetexception     @ java.lang.reflect.method.invokenative(native method)     @ java.lang.reflect.method.invoke(method.java:515)     @ android.view.view$1.onclick(view.java:3991)     ... 11 more caused by: android.os.networkonmainthreadexception     @ android.os.strictmode$androidblockguardpolicy.onnetwork(strictmode.java:1166)     @ java.net.inetaddress.lookuphostbyname(inetaddress.java:385)     @ java.net.inetaddress.getallbynameimpl(inetaddress.java:236)     @ java.net.inetaddress.getallbyname(inetaddress.java:214)     @ com.android.okhttp.internal.dns$1.getallbyname(dns.java:28)     @ com.android.okhttp.internal.http.routeselector.resetnextinetsocketaddress(routeselector.java:216)     @ com.android.okhttp.internal.http.routeselector.next(routeselector.java:122)     @ com.android.okhttp.internal.http.httpengine.connect(httpengine.java:409)     @ com.android.okhttp.internal.http.httpengine.sendsocketrequest(httpengine.java:362)     @ com.android.okhttp.internal.http.httpengine.sendrequest(httpengine.java:308)     @ com.android.okhttp.internal.http.httpurlconnectionimpl.execute(httpurlconnectionimpl.java:345)     @ com.android.okhttp.internal.http.httpurlconnectionimpl.getresponse(httpurlconnectionimpl.java:296)     @ com.android.okhttp.internal.http.httpurlconnectionimpl.getinputstream(httpurlconnectionimpl.java:179)     @ com.android.okhttp.internal.http.httpsurlconnectionimpl.getinputstream(httpsurlconnectionimpl.java:246)     @ java.net.url.openstream(url.java:470)     @ com.example.myapp.mainactivity.search(mainactivity.java:60)     ... 14 more

issue exception states

caused by: android.os.networkonmainthreadexception     @ android.os.strictmode$androidblockguardpolicy.onnetwork(strictmode.java:1166)

i think android honeycomb version cannot perform network operation on main ui thread. consider using asynctask instead network operations (docs).

you can turn off strict mode workaround not recommended.

strictmode.threadpolicy newpolicy = new strictmode.threadpolicy.builder().permitall().build(); strictmode.setthreadpolicy(newpolicy );

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