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本文实例讲述了android使用listview批量删除item的方法。分享给大家供大家参考，具体如下：
利用checkbox选中一个或多个item，最后批量删除它们。
程序运行效果图如下：
下面开始上码：
(代码已更正,已解决滚动时紊乱的问题)
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package com.test.adapter;
import java.util.arraylist;
import java.util.hashmap;
import java.util.list;
import java.util.map;
import android.app.listactivity;
import android.content.context;
import android.os.bundle;
import android.view.layoutinflater;
import android.view.menu;
import android.view.menuitem;
import android.view.view;
import android.view.viewgroup;
import android.widget.adapterview;
import android.widget.adapterview.onitemclicklistener;
import android.widget.baseadapter;
import android.widget.checkbox;
import android.widget.listview;
import android.widget.textview;
import android.widget.toast;
import com.test.adapter.arrayadapteractivity.listviewadapter.viewholder;
/**
* listview 批量删除item
* @author manymore13
*
*/
public class arrayadapteractivity extends listactivity {
private listviewadapter ladapter;
private list<string> strlist = new arraylist<string>();
private list<boolean> boollist = new arraylist<boolean>();
boolean visflag = false;
listview lv;
static string str[] ={"1苹果","2香蕉","3桔子","4猕猴桃","5李子","6甘蔗","7荔枝","8桃子","9香瓜","10葡萄","11哈密瓜","12桂圆","13龙眼","14","15","16","17","18","19","20"};
checkbox cb;
{
for(int i=0;i<str.length;i++)
{
strlist.add(str[i]);
boollist.add(false);
}
}
@override
protected void oncreate(bundle savedinstancestate)
{
super.oncreate(savedinstancestate);
ladapter = new listviewadapter(this);
lv = this.getlistview();
lv.setadapter(ladapter);
lv.setscrollbarstyle(1);
lv.setonitemclicklistener(new onitemclicklistener()
{
@override
public void onitemclick(adapterview<?> parent,
view view, int position, long id)
{
if(visflag)
{
viewholder viewholder = (viewholder) view.gettag();
viewholder.cb.toggle();
if(viewholder.cb.ischecked())
{
boollist.set(position, true);
}else{
boollist.set(position, false);
}
}
}
});
}
class listviewadapter extends baseadapter
{
context c;
layoutinflater minflater ;
listviewadapter(context context)
{
c = context;
minflater = getlayoutinflater();
}
@override
public int getcount()
{
return strlist.size();
}
@override
public object getitem(int position)
{
return strlist.get(position);
}
@override
public long getitemid(int position)
{
return position;
}
@override
public view getview(final int position, view convertview,
viewgroup parent)
{
viewholder holder = null ;
if(convertview == null)
{
holder = new viewholder();
convertview = minflater.inflate(r.layout.list_item, null);
holder.tv = (textview)convertview.findviewbyid(r.id.textview);
holder.cb = (checkbox)convertview.findviewbyid(r.id.checkbox);
convertview.settag(holder);
}else{
holder = (viewholder) convertview.gettag();
}
holder.tv.settext(strlist.get(position));
holder.cb.setchecked(boollist.get(position));
if(visflag)
{
holder.cb.setvisibility(view.visible);
}
else
{
holder.cb.setvisibility(view.invisible);
}
return convertview;
}
class viewholder
{
textview tv;
checkbox cb;
}
}
@override
public boolean oncreateoptionsmenu(menu menu)
{
menu.add(0, 0, 0, "批量处理");
menu.add(0, 1, 0, "确定删除");
return super.oncreateoptionsmenu(menu);
}
@override
public boolean onoptionsitemselected(menuitem item)
{
switch(item.getitemid())
{
case 0: // 批量处理
{
if(visflag)
{
visflag = false;
for(int i=0; i<boollist.size();i++)
{
boollist.set(i, false);
}
}
else
{
visflag = true;
}
this.ladapter.notifydatasetinvalidated();
break;
}
case 1: //确定删除
{
if(boollist.size()>0)
{
if(visflag)
{
for(int location=0; location<boollist.size(); )
{
if(boollist.get(location))
{
boollist.remove(location);
strlist.remove(location);
continue;
}
location++;
}
}
}
this.ladapter.notifydatasetchanged();
break;
}
}
return super.onoptionsitemselected(item);
}
}
还有list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<relativelayout
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<textview
android:id="@+id/textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello"
android:layout_alignparentleft="true"
android:layout_centervertical="true"
/>
<checkbox
android:id="@+id/checkbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignparentright="true"
android:visibility="gone"
android:focusable="false"
android:focusableintouchmode="false"
android:clickable="false"
/>
</relativelayout>
</linearlayout>
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