Android Listview Select Item -
i have minimum ten item food listview.
i want select 1 or more item food .
and pressed order button.
then show me total price select item food.
how possible please tell me?
menulistitem:
package com.example.project_hotel_management; import java.util.arraylist; import java.util.list; import android.app.activity; import android.os.bundle; import android.view.view; import android.widget.adapterview; import android.widget.adapterview.onitemclicklistener; import android.widget.listview; import android.widget.toast; public class menulistitem extends activity{ listview lv; myadapter adapter; @override protected void oncreate(bundle savedinstancestate) { // todo auto-generated method stub super.oncreate(savedinstancestate); setcontentview(r.layout.menuitemlist_layout); lv=(listview)findviewbyid(r.id.listview1); adapter=new myadapter(this , getlistitem()); lv.setadapter(adapter); lv.setonitemclicklistener(new onitemclicklistener() { @override public void onitemclick(adapterview<?> arg0, view arg1, int arg2, long arg3) { // todo auto-generated method stub toast.maketext(getapplicationcontext(), "d", toast.length_long).show(); } }); } public arraylist<listitem> getlistitem() { arraylist<listitem> alllist=new arraylist<listitem>(); listitem l1=new listitem("beef_burguer", 1, r.drawable.beef_burguer); listitem l2=new listitem("bacon_cheese_burger", 2, r.drawable.bacon_cheese_burger); listitem l3=new listitem("frings", 3, r.drawable.frings); listitem l4=new listitem("burger_kingse", 4, r.drawable.burger_kingse); listitem l5=new listitem("mint_oreo", 5, r.drawable.mint_oreo); listitem l6=new listitem("sourdough_bread", 6, r.drawable.sourdough_bread); listitem l7=new listitem("sandwich", 7, r.drawable.sandwich); listitem l8=new listitem("sandwich_loaded", 8, r.drawable.sandwich_loaded); listitem l9=new listitem("mustard", 9, r.drawable.mustard); listitem l10=new listitem("cheese_burger", 10, r.drawable.cheese_burger); alllist.add(l1); alllist.add(l2); alllist.add(l3); alllist.add(l4); alllist.add(l5); alllist.add(l6); alllist.add(l7); alllist.add(l8); alllist.add(l9); alllist.add(l10); return alllist; } public void order(view v) { string result=""; list<integer> resultlist=adapter.getcheckeditemposition(); (int = 0; < resultlist.size(); i++) { result+=string.valueof(resultlist.get(i))+"\n"; } toast.maketext(getapplicationcontext(), result, toast.length_long).show(); } } myadapter:
package com.example.project_hotel_management; import java.util.arraylist; import java.util.hashmap; import java.util.list; import android.app.activity; import android.content.clipdata.item; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; import android.widget.arrayadapter; import android.widget.checkbox; import android.widget.imageview; import android.widget.textview; import android.widget.toast; public class myadapter extends arrayadapter<listitem>{ activity context; arraylist<listitem> listitem; hashmap<integer, boolean> mychecked=new hashmap<integer, boolean>(); public myadapter(activity context, arraylist<listitem> listitem) { super(context, r.layout.adapter_layout, listitem); this.context=context; this.listitem=listitem; (int = 0; < listitem.size(); i++) { mychecked.put(i, false); } } public void togglechecked(int position) { if(mychecked.get(position)){ mychecked.put(position, false); toast.maketext(getcontext(), "false", toast.length_long).show(); }else{ mychecked.put(position, true); toast.maketext(getcontext(), "false", toast.length_long).show(); } notifydatasetchanged(); } public list<integer> getcheckeditemposition() { list<integer> checkeditemposition=new arraylist<integer>(); (int = 0; < mychecked.size(); i++) { checkeditemposition.add(i); } return checkeditemposition; } // public list<integer> getcheckeditem() { // list<integer> checkeditem=new arraylist<integer>(); // // (int = 0; < mychecked.size(); i++) { // checkeditem.add(); // } // return checkeditem; // } @override public view getview(int position, view convertview, viewgroup parent) { view view=convertview; layoutinflater inflat=context.getlayoutinflater(); view=inflat.inflate(r.layout.adapter_layout, null, false); textview txtname=(textview) view.findviewbyid(r.id.txtname); textview txtprice=(textview) view.findviewbyid(r.id.txtprice); imageview image=(imageview) view.findviewbyid(r.id.imageview1); listitem l=listitem.get(position); toast.maketext(getcontext(), string.valueof(listitem.get(position)), toast.length_long ).show(); txtname.settext(l.getname()); txtprice.settext(string.valueof(l.getprice())); image.setimageresource(l.getimage()); checkbox chekboxs=(checkbox) view.findviewbyid(r.id.checkbox1); boolean chekbox=mychecked.get(position); if(chekbox!=null){ chekboxs.setchecked(chekbox); } return view; } } listitem:
package com.example.project_hotel_management; public class listitem { string name; integer price; integer image; public listitem(string name, integer price, integer image) { super(); this.name = name; this.price = price; this.image = image; } public string getname() { return name; } public void setname(string name) { this.name = name; } public integer getprice() { return price; } public void setprice(integer price) { this.price = price; } public integer getimage() { return image; } public void setimage(integer image) { image = image; } @override public string tostring() { return "listitem [name=" + name + ", price=" + price + ", image=" + image + "]"; } } i use it's not working:
lv.setonitemclicklistener(new onitemclicklistener() { @override public void onitemclick(adapterview<?> arg0, view arg1, int position, long arg3) { // todo auto-generated method stub listitem ls=getlistitem().get(position); toast.maketext(getapplicationcontext(), string.valueof(ls.getprice()), toast.length_long).show(); } });
you can set android:choicemode="multiplechoice" on listview. can implement selector define how selected item highlighted. example of selector:
<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/list_item_bg_normal" android:state_activated="false"/> <item android:drawable="@drawable/list_item_bg_pressed" android:state_pressed="true"/> <item android:drawable="@drawable/list_item_bg_pressed" android:state_activated="true"/> </selector> once 1 or more items in listview selected, can selected items by:
int len = listview.getcount(); sparsebooleanarray checked = listview.getcheckeditempositions(); (int = 0; < len; i++) if (checked.get(i)) { string item = cont_list.get(i); /* calculate price */ }
Comments
Post a Comment