android - Out of memory error while parsing a large json response -


i have large json response. storing in string. getting out of memory error while parsing json.
here parsing this

public arraylist<string> parsing()    {    system.out.println("parsing start");    arraylist<string> urls=new arraylist<string>();     smusicname=null;smoviename=null;    sbookname=null;stelevisionname=null;     int position=0;     try {       jsonobject node1=new jsonobject(response);                   jsonarray array1=node1.getjsonarray("data");     int length=array1.length();     for(int i=0;i<length;i++){         if(array1.getjsonobject(i).getstring("id").equals(friendid.tostring())){             position=i;         }     }        jsonobject node2 = array1.getjsonobject(position);           try{               if(node2.has("music"))  {                  jsonarray array2=node2.getjsonobject("music").getjsonarray("data");                 jsonobject node4=array2.getjsonobject(0);                  string name=node4.getstring("name");                 smusicname=name;                 jsonobject node5=node4.getjsonobject("picture");                 jsonobject node6=node5.getjsonobject("data");                 string musicsurl=node6.getstring("url");                 urls.add(musicsurl);                  }                 }           catch(jsonexception e)    {               e.printstacktrace();             }           try{               if(node2.has("movies")){                   jsonarray array2=node2.getjsonobject("movies").getjsonarray("data");                 jsonobject node4=array2.getjsonobject(0);                 string name=node4.getstring("name");                 smoviename=name;                 jsonobject node5=node4.getjsonobject("picture");                 jsonobject node6=node5.getjsonobject("data");                 string moviesurl=node6.getstring("url");                 urls.add(moviesurl);               }               }               catch(jsonexception e){                   e.printstacktrace();                 }           try{               if(node2.has("books")) {               jsonarray array2=node2.getjsonobject("books").getjsonarray("data");                 jsonobject node4=array2.getjsonobject(0);                 string name=node4.getstring("name");                 sbookname=name;                 jsonobject node5=node4.getjsonobject("picture");                 jsonobject node6=node5.getjsonobject("data");                 string bookurl=node6.getstring("url");                 urls.add(bookurl);                }           }               catch(jsonexception e){                 e.printstacktrace();               }           try{               if(node2.has("television")) {               jsonarray array2=node2.getjsonobject("television").getjsonarray("data");                 jsonobject node4=array2.getjsonobject(0);                 string name=node4.getstring("name");                 stelevisionname=name;                 jsonobject node5=node4.getjsonobject("picture");                 jsonobject node6=node5.getjsonobject("data");                 string televisionsurl=node6.getstring("url");                 urls.add(televisionsurl);               }           }               catch(jsonexception e) {                 e.printstacktrace();               }         } catch (exception e) {             log.i("jsonexception", e.getmessage());     }     return urls;    }`

here getting out of memory error

jsonobject node1=new jsonobject(response);
where response string stored json response.

and logcat message

`07-25 09:47:21.906: e/dalvikvm-heap(1055): out of memory on 634-byte allocation. 07-25 09:47:21.906: i/dalvikvm(1055): "asynctask #9" prio=5 tid=17 runnable jit 07-25 09:47:21.906: i/dalvikvm(1055):   | group="main" scount=0 dscount=0 obj=0x4101bd90 self=0x2a929320 07-25 09:47:21.916: i/dalvikvm(1055):   | systid=1144 nice=10 sched=0/0 cgrp=apps/bg_non_interactive handle=714125688 07-25 09:47:21.916: i/dalvikvm(1055):   | state=r schedstat=( 1364254144 10263103582 272 ) utm=129 stm=7 core=0 07-25 09:47:21.916: i/dalvikvm(1055):   @ java.lang.abstractstringbuilder.enlargebuffer(abstractstringbuilder.java:~94) 07-25 09:47:21.926: i/dalvikvm(1055):   @ java.lang.abstractstringbuilder.append0(abstractstringbuilder.java:162) 07-25 09:47:21.926: i/dalvikvm(1055):   @ java.lang.stringbuilder.append(stringbuilder.java:311) 07-25 09:47:21.926: i/dalvikvm(1055):   @ org.json.jsontokener.nextstring(jsontokener.java:212) 07-25 09:47:21.926: i/dalvikvm(1055):   @ org.json.jsontokener.nextvalue(jsontokener.java:107) 07-25 09:47:21.926: i/dalvikvm(1055):   @ org.json.jsontokener.readobject(jsontokener.java:385) 07-25 09:47:21.926: i/dalvikvm(1055):   @ org.json.jsontokener.nextvalue(jsontokener.java:100) 07-25 09:47:21.956: i/dalvikvm(1055):   @ org.json.jsontokener.readobject(jsontokener.java:385) 07-25 09:47:21.956: i/dalvikvm(1055):   @ org.json.jsontokener.nextvalue(jsontokener.java:100) 07-25 09:47:21.956: i/dalvikvm(1055):   @ org.json.jsontokener.readobject(jsontokener.java:385) 07-25 09:47:21.966: i/dalvikvm(1055):   @ org.json.jsontokener.nextvalue(jsontokener.java:100) 07-25 09:47:21.966: i/dalvikvm(1055):   @ org.json.jsontokener.readarray(jsontokener.java:430) 07-25 09:47:21.966: i/dalvikvm(1055):   @ org.json.jsontokener.nextvalue(jsontokener.java:103) 07-25 09:47:21.966: i/dalvikvm(1055):   @ org.json.jsontokener.readobject(jsontokener.java:385) 07-25 09:47:21.966: i/dalvikvm(1055):   @ org.json.jsontokener.nextvalue(jsontokener.java:100) 07-25 09:47:21.966: i/dalvikvm(1055):   @ org.json.jsonobject.<init>(jsonobject.java:154) 07-25 09:47:21.966: i/dalvikvm(1055):   @ org.json.jsonobject.<init>(jsonobject.java:171) 07-25 09:47:21.966: i/dalvikvm(1055):   @ com.facebook.androidd.myfragment.parsing(myfragment.java:662) 07-25 09:47:21.966: i/dalvikvm(1055):   @ com.facebook.androidd.myfragment$downloadimagestask1.doinbackground(myfragment.java:432) 07-25 09:47:21.966: i/dalvikvm(1055):   @ com.facebook.androidd.myfragment$downloadimagestask1.doinbackground(myfragment.java:1) 07-25 09:47:21.966: i/dalvikvm(1055):   @ android.os.asynctask$2.call(asynctask.java:287) 07-25 09:47:21.966: i/dalvikvm(1055):   @ java.util.concurrent.futuretask.run(futuretask.java:234) 07-25 09:47:21.966: i/dalvikvm(1055):   @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1080) 07-25 09:47:21.966: i/dalvikvm(1055):   @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:573) 07-25 09:47:21.966: i/dalvikvm(1055):   @ java.lang.thread.run(thread.java:856)`

plz me.

you shouldn't go bad fix increasing heap size. may fix problem temporarily @ point (if json gets larger can stored in memory @ all), crash again.

the proper , authentic way use gson streaming. can google or check out this link. it's not terribly difficult either. have fun! ;)

ps: there other ways this, instance read use jackson in place of gson , there's jsonreader class in android sdk (api 11+) same.


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