android - how to display a listview in other class? -

i made custom animation sliding menu (like fb) , have insert listview in sublayout. listview in different class parsed through json using lazyadapter.

this mainactivity

package com.android.appslu;  import android.annotation.suppresslint; import android.app.activity; import android.content.intent; import android.content.res.resources; import android.os.bundle; import android.util.log; import android.view.display; import android.view.motionevent; import android.view.view; import android.view.view.ontouchlistener; import android.view.viewgroup.layoutparams; import android.view.animation.animation; import android.view.animation.animation.animationlistener; import android.view.animation.translateanimation; import android.widget.button; import android.widget.listview; import android.widget.relativelayout; import android.widget.textview;  import com.android.appslu.jsonparsing.jsonparsingactivity;   public class mainactivity extends activity {        private button buttonswitch; private button button1; private view sublayout; private view toplayout; private listview mylist; private string arraylist; // ={"android","iphone","blackberry","androidpeople"}; private display display; private view fakelayout; private animationlistener al; // values after animation private int oldleft; private int oldtop; private int newleft; private int newtop; private int screenwidth; private int animtopostion; // todo change name of animtopostion better explanation.  private boolean menuopen = false;  /** called when activity first created. */ @suppresslint("resourceascolor") @override public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);       buttonswitch = (button) findviewbyid(r.id.button);     button1 = (button) findviewbyid(r.id.button1);     sublayout = findviewbyid(r.id.layout);     toplayout = findviewbyid(r.id.layouttwo);     mylist = (listview) findviewbyid(r.layout.list_item);     fakelayout = findviewbyid(r.id.fake_layouy);     // textview yourtextview = (textview)findviewbyid(titleid);     // yourtextview.sethighlightcolor(r.color.red);        // subviewlistview.setadapter((listadapter) new     // arrayadapter<string>(this,android.r.layout.simple_list_item_1 ,     // arraylist));     // listadapter adapter = new simpleadapter(this,     // mylist,r.layout.list_item, new string[]{tag_name,tag_url}, new     // int[]{r.id.name, r.id.url});      display = getwindowmanager().getdefaultdisplay();     screenwidth = display.getwidth();     int calcanimationposition = (screenwidth / 3);      // value ontop layer has animate     // max width of layout underneath     // set layout params sublayout according calculation     animtopostion = screenwidth - calcanimationposition;      relativelayout.layoutparams params = new relativelayout.layoutparams(             animtopostion, layoutparams.fill_parent);     sublayout.setlayoutparams(params);      toplayout.setontouchlistener(new ontouchlistener() {          @override         public boolean ontouch(view v, motionevent event) {              if (event.getaction() == motionevent.action_down) {                 if (menuopen == true) {                     animslideleft();                 }             }              return false;         }     });      buttonswitch.setonclicklistener(new view.onclicklistener() {          @override         public void onclick(view v) {             if (menuopen == false) {                 animslideright();              } else if (menuopen == true) {                 animslideleft();             }         }     });       button1.setonclicklistener(new view.onclicklistener() {          @override         public void onclick(view v) {              intent newintent = new intent(mainactivity.this,   jsonparsingactivity.class);             startactivity(newintent);         }     });      al = new animationlistener() {          @override         public void onanimationstart(animation animation) {             buttonswitch.setclickable(false);             toplayout.setenabled(false);         }          @override         public void onanimationrepeat(animation animation) {             // todo auto-generated method stub          }          @override         public void onanimationend(animation animation) {             if (menuopen == true) {                 log.d("", "open");                 toplayout.layout(oldleft, oldtop,                         oldleft + toplayout.getmeasuredwidth(), oldtop                                 + toplayout.getmeasuredheight());                 menuopen = false;                 buttonswitch.setclickable(true);                 toplayout.setenabled(true);             } else if (menuopen == false) {                 log.d("", "false");                 toplayout.layout(newleft, newtop,                         newleft + toplayout.getmeasuredwidth(), newtop                                 + toplayout.getmeasuredheight());                 toplayout.setenabled(true);                 menuopen = true;                 buttonswitch.setclickable(true);             }         }     }; }  public void animslideright() {      fakelayout.setvisibility(view.visible);     newleft = toplayout.getleft() + animtopostion;     newtop = toplayout.gettop();     translateanimation slideright = new translateanimation(0, newleft, 0, 0);     slideright.setduration(500);     slideright.setfillenabled(true);     slideright.setanimationlistener(al);     toplayout.startanimation(slideright);  }  public void animslideleft() {      fakelayout.setvisibility(view.gone);     oldleft = toplayout.getleft() - animtopostion;     oldtop = toplayout.gettop();     translateanimation slideleft = new translateanimation(newleft, oldleft,             0, 0);     slideleft.setduration(500);     slideleft.setfillenabled(true);     slideleft.setanimationlistener(al);     toplayout.startanimation(slideleft); } }` 

the jsonparsingactivity

package com.android.appslu.jsonparsing;  import java.util.arraylist; import java.util.hashmap;  import org.json.jsonarray; import org.json.jsonexception; import org.json.jsonobject;  import android.app.listactivity; import android.content.intent; import android.graphics.bitmap; import android.os.bundle; import android.view.view; import android.widget.adapterview; import android.widget.adapterview.onitemclicklistener; import android.widget.imageview; import android.widget.listadapter; import android.widget.listview; import android.widget.textview;  import com.android.appslu.mainactivity; import com.android.appslu.r;  public class jsonparsingactivity extends listactivity { private static string url = "http:example.com"; // json node names  private static final string tag_contacts = "categories"; private static final string tag_catbook = "buzzbyappcategory"; private static final string tag_apps = "buzzbysource";  static final string tag_name = "catname"; private static final string tag_id = "catid"; static final string tag_email = "caticon"; //private static final string tag_phone_home = "home";  //  private static final string tag_phone_office = "office";       bitmap image; // contacts jsonarray jsonobject catlist = null; jsonarray catbook = null; jsonarray catapps = null;    @override public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.list_item);      // hashmap listview      arraylist<hashmap<string, string>> catlist = new arraylist<hashmap<string, string>>();      // creating json parser instance     jparser jparser = new jparser();      // getting json string url     jsonobject json = jparser.getjsonfromurl(url);      try {         // getting array of contacts         catlist = json.getjsonobject(tag_contacts);          catbook = catlist.getjsonarray(tag_catbook);         // looping through contacts         for(int = 0; < catbook.length(); i++){             jsonobject c = catbook.getjsonobject(i);                 // storing each json item in variable             string id = c.getstring(tag_id);             string name = c.getstring(tag_name);             string email = c.getstring(tag_email); //          string address = c.getstring(tag_address);     //      string gender = c.getstring(tag_gender);              // phone number agin json object //              jsonobject phone = c.getjsonobject(tag_phone); //              string mobile = phone.getstring(tag_phone_mobile); //              string home = phone.getstring(tag_phone_home); //              string office = phone.getstring(tag_phone_office); //                           // creating new hashmap             hashmap<string, string> map = new hashmap<string, string>();              // adding each child node hashmap key => value             map.put(tag_id, id);             map.put(tag_name, name);             map.put(tag_email, email);     //      map.put(tag_phone_mobile, mobile);              // adding hashlist arraylist             catlist.add(map);         }          catapps = catlist.getjsonarray(tag_apps);         // looping through contacts         for(int = 0; < catapps.length(); i++){             jsonobject c = catapps.getjsonobject(i);                 // storing each json item in variable             string id = c.getstring(tag_id);             string name = c.getstring(tag_name);             string email = c.getstring(tag_email); //          string address = c.getstring(tag_address);     //      string gender = c.getstring(tag_gender);              // phone number agin json dobject //              jsonobject phone = c.getjsonobject(tag_phone); //              string mobile = phone.getstring(tag_phone_mobile); //              string home = phone.getstring(tag_phone_home); //              string office = phone.getstring(tag_phone_office); //                           // creating new hashmap             hashmap<string, string> map = new hashmap<string, string>();              // adding each child node hashmap key => value             map.put(tag_id, id);             map.put(tag_name, name);             map.put(tag_email, email);     //      map.put(tag_phone_mobile, mobile);              // adding hashlist arraylist             catlist.add(map);         }      } catch (jsonexception e) {         e.printstacktrace();      }        /**      * updating parsed json data listview      * */     listadapter adapter = new lazyadapter(this, catlist);     setlistadapter(adapter);      // selecting single listview item     listview lv = getlistview();      // launching new screen on selecting single listitem     lv.setonitemclicklistener(new onitemclicklistener() {          @override         public void onitemclick(adapterview<?> parent, view view,                 int position, long id) {             // getting values selected listitem             string name = ((textview) view.findviewbyid(r.id.name)).gettext().tostring();             string cost = ((imageview) view.findviewbyid(r.id.email)).gettag().tostring(); //              string description = ((textview) view.findviewbyid(r.id.mobile)).gettext().tostring();              // starting new intent             intent in = new intent(getapplicationcontext(), singlemenuitemactivity.class);             in.putextra(tag_name, name);             in.putextra(tag_email, cost);             //in.putextra(tag_phone_mobile, description);             startactivity(in);          }     });  //      intent i=new intent(jsonparsingactivity.this,mainactivity.class); //         i.putstringarraylistextra("key",arl); //         startactivity(i); //        }   } 

and xml main activity is

<?xml version="1.0" encoding="utf-8"?> <relativelayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/relativelayout1" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" >  <surfaceview     android:id="@+id/surfaceview1"     android:layout_width="fill_parent"     android:layout_height="fill_parent" />  <relativelayout     android:id="@+id/layout"     android:layout_width="220dp"     android:layout_height="fill_parent"     android:background="#ffffff"     android:orientation="vertical" >      <linearlayout         android:id="@+id/fake_layouy"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:orientation="vertical"         android:visibility="gone" >     </linearlayout>      <listview         android:id="@+id/listview1"         android:layout_width="match_parent"         android:layout_height="wrap_content" >         <textview              android:id="@+id/name_label"             android:layout_width="match_parent"             android:layout_height="wrap_content"/>         <imageview android:id="@+id/email_label"             android:layout_width="match_parent"             android:layout_height="wrap_content"/>     </listview> </relativelayout>  <relativelayout     android:id="@+id/layouttwo"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:background="@drawable/scrollback"     android:orientation="vertical" >      <linearlayout         android:id="@+id/linearlayout1"         android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:layout_alignparentleft="true"         android:layout_alignparenttop="true"         android:layout_margin="2dp"         android:orientation="vertical" >          <listview             android:id="@+id/layoutthree"             android:layout_width="fill_parent"             android:layout_height="fill_parent"             android:layout_below="@+id/button" >         </listview>          <button             android:id="@+id/button"             android:layout_width="50dp"             android:layout_height="wrap_content"             android:text="slide" />      </linearlayout> </relativelayout> 

my question how display listview jsonparsingactivity in sublayout of mainactivity.

im new android programming.... plz help..

thanks in advance..

extend jsonparsingactivity listfragment. load jsonparsingactivity in main activity.

updated code

fragmentmanager fragmentmanager = getfragmentmanager() fragmenttransaction fragmenttransaction = fragmentmanager.begintransaction(); 

you can add fragment using add() method, specifying fragment add , view in insert it.

examplefragment fragment = new examplefragment(); fragmenttransaction.add(r.id.fragment_container, fragment); fragmenttransaction.commit(); 

please refer link ,everything fragment explained here.

this way can set userinterface in fragment. solution first 1 1.

public static class examplefragment extends fragment { @override public view oncreateview(layoutinflater inflater, viewgroup container,                          bundle savedinstancestate) {     // inflate layout fragment     return inflater.inflate(r.layout.example_fragment, container, false); } } 

solution second problem.

  lazyadapter(getactivity(), arraylist<hashmap<string,string>>)