android - Display ListView of selected data to next Activity in textView -


in listview here have contacts check box. when select 2 contacts list , hit button selected list's value should display in next activity. how can this?

its activity class :

public class contactlistactivity extends activity implements onitemclicklistener {  private listview listview; private list<contactbean> list = new arraylist<contactbean>();  @suppresswarnings("deprecation") @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.main);      listview = (listview) findviewbyid(r.id.list);     listview.setonitemclicklistener(this);      cursor phones = getcontentresolver().query(contactscontract.commondatakinds.phone.content_uri, null, null, null, null);     while (phones.movetonext()) {          string name = phones.getstring(phones.getcolumnindex(contactscontract.commondatakinds.phone.display_name));         string phonenumber = phones.getstring(phones.getcolumnindex(contactscontract.commondatakinds.phone.number));         contactbean objcontact = new contactbean();         objcontact.setname(name);         objcontact.setphoneno(phonenumber);         list.add(objcontact);     }     phones.close();        contanctadapter objadapter = new contanctadapter(contactlistactivity.this, r.layout.alluser_row, list);     listview.setadapter(objadapter);      if (null != list && list.size() != 0) {         collections.sort(list, new comparator<contactbean>() {              @override             public int compare(contactbean lhs, contactbean rhs) {                 return lhs.getname().compareto(rhs.getname());             }         });         alertdialog alert = new alertdialog.builder(contactlistactivity.this).create();         alert.settitle("");          alert.setmessage(list.size() + " contact found!!!");          alert.setbutton("ok", new dialoginterface.onclicklistener() {              @override             public void onclick(dialoginterface dialog, int which) {                 dialog.dismiss();             }         });         alert.show();      } else {         showtoast("no contact found!!!");     } }  private void showtoast(string msg) {     toast.maketext(this, msg, toast.length_short).show(); }  @override public void onitemclick(adapterview<?> listview, view v, int position, long id) {     contactbean bean = (contactbean) listview.getitematposition(position);     showcalldialog(bean.getname(), bean.getphoneno()); }  private void showcalldialog(string name, final string phoneno) {     alertdialog alert = new alertdialog.builder(contactlistactivity.this).create();     alert.settitle("call?");      alert.setmessage("are sure want call " + name + " ?");      alert.setbutton("no", new dialoginterface.onclicklistener() {          @override         public void onclick(dialoginterface dialog, int which) {             dialog.dismiss();         }     });     alert.setbutton2("yes", new dialoginterface.onclicklistener() {          @override         public void onclick(dialoginterface dialog, int which) {             string phonenumber = "tel:" + phoneno;             intent intent = new intent(intent.action_call, uri.parse(phonenumber));             startactivity(intent);         }     });     alert.show(); } 

and adapter class hold data is

public class contanctadapter extends arrayadapter<contactbean> {  private activity activity; private list<contactbean> items; private int row;  private layoutinflater inflater = null;  public contanctadapter(activity act, int row, list<contactbean> items) {     super(act, row, items);     this.activity = act;     this.row = row;     this.items = items;     this.inflater = (layoutinflater) activity.getsystemservice(context.layout_inflater_service); }  @override public view getview(final int position, view convertview, viewgroup parent) {     viewholder holder;     if (convertview == null) {         holder = new viewholder();         convertview = inflater.inflate(row, null);         holder.tvname = (textview) convertview.findviewbyid(r.id.tvname);         holder.tvphoneno = (textview) convertview.findviewbyid(r.id.tvphone);         holder.checkbox = (imageview) convertview.findviewbyid(r.id.img_checkbox);         convertview.settag(holder);     } else {         holder = (viewholder) convertview.gettag();     }      if ((items == null) || ((position + 1) > items.size()))         return convertview;      contactbean objbean = items.get(position);      holder.checkbox.setselected((objbean.getisselected() == 1) ? true : false);      if (holder.tvname != null && null != objbean.getname() && objbean.getname().trim().length() > 0) {         holder.tvname.settext(html.fromhtml(objbean.getname()));     }     if (holder.tvphoneno != null && null != objbean.getphoneno() && objbean.getphoneno().trim().length() > 0) {         holder.tvphoneno.settext(html.fromhtml(objbean.getphoneno()));     }      holder.checkbox.setonclicklistener(new onclicklistener() {          @override         public void onclick(view v) {              items.get(position).isselected = (v.isselected()) ? 0 : 1;             notifydatasetchanged();          }     });      return convertview; }  public class viewholder {     public textview tvname, tvphoneno;     private imageview checkbox; } } 

there multiple ways achieve :

method 1:

use static class setter , getter method:

create static class , set values first activity , value second activity

method 2:

post values through intent

method 3:

use database store data 1 activity , data other activity

method 4:

use shared preference

example:

post values using intent like this

post values in shared preference

another tutorial shared preference


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