inputstreamreader - I made a simple android app so far and its not working. InputBufferedReader is the cause I think -

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added alot of tv.settext( ) in order know of lines being executed , try block breaks. ending result of 'tv' 4.

public class main extends activity {  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.main);      textview tv = (textview) findviewbyid(r.id.textview);      bufferedreader reader = null;      try{         tv.settext("1");         url url = new url("https://www.google.com");         tv.settext("2");         httpurlconnection conn = (httpurlconnection) url.openconnection();         tv.settext("3");          stringbuilder sb = new stringbuilder();         tv.settext("4");         reader = new bufferedreader(new inputstreamreader(conn.getinputstream()));         tv.settext("5");          string line;         tv.settext("6");         while((line = reader.readline()) != null){             tv.append(line + "\n");         }     }catch (exception e){         //tv.settext("exception");     } }

i using android studio , logcat :

04-22 23:38:25.990  28870-28870/com.example.taha.url e/trace﹕ error opening trace file: no such file or directory (2) 04-22 23:38:26.118  28870-28870/com.example.taha.url e/linker﹕ load_library(linker.cpp:759): library "libmaliinstr.so" not found 04-22 23:38:26.125  28870-28870/com.example.taha.url e/﹕ appname=com.example.taha.url, acappname=com.android.cts.openglperf 04-22 23:38:26.125  28870-28870/com.example.taha.url e/﹕ 0 04-22 23:38:26.125  28870-28870/com.example.taha.url e/﹕ appname=com.example.taha.url, acappname=com.android.browser 04-22 23:38:26.125  28870-28870/com.example.taha.url e/﹕ 0

you can't perform network operation on main thread can use asynctask , put network operation inside doinbackground method of asynctask class .

check out : http://developer.android.com/training/basics/network-ops/connecting.html#asynctask


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