Welcome

首页 / 移动开发 / Android / Android编程之listView中checkbox用法实例分析

本文实例讲述了Android编程之listView中checkbox用法。分享给大家供大家参考,具体如下:
我们经常会用到在listView中使用checkbox的情况。直接不回应用后会发现,ListView中的OnItemClickListener事件会和checkbox中的选择事件发生冲突,这个怎么处理呢。直接上代码。
list_item.xml代码:
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:background="@color/color_while"><TextViewandroid:id="@+id/txt_add_note_tag_list_name"android:layout_height="50dp"android:layout_width="fill_parent"android:gravity="center_vertical"android:textColor="@color/color_black"android:layout_marginLeft="8dp"/><CheckBoxandroid:id="@+id/chk_add_note_tag_list_chk"android:layout_width="wrap_content"android:layout_height="wrap_content"android:gravity="center_vertical"android:layout_alignParentRight="true"android:layout_marginRight="8dp"android:focusable="false" <!--这个是必须加上的,不然会出现冲突-->android:clickable="false" <!--这个是必须加上的,不然会出现冲突-->/></RelativeLayout>
BaseAdapter.java代码:
package cg.guangda.androidnote;import java.util.HashMap;import java.util.List;import java.util.Map;import cg.guangda.androidnote.Model.noteTag;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.CheckBox;import android.widget.TextView;public class Add_note_tag_list_BaseAdapter extends BaseAdapter {private LayoutInflater inflater;private List<noteTag> list_notetag_date;//定义多选框是否被选中public static Map<Integer, Boolean> isSelected;public Add_note_tag_list_BaseAdapter(Context context,List<noteTag> list_notetag_date){this.inflater = LayoutInflater.from(context);this.list_notetag_date = list_notetag_date;//这儿定义isSelected这个map是记录每个listitem的状态,初始状态全部为false。isSelected = new HashMap<Integer, Boolean>();for (int i = 0; i < list_notetag_date.size(); i++) {isSelected.put(i, false);}}@Overridepublic int getCount() {// TODO Auto-generated method stubreturn list_notetag_date.size();}@Overridepublic Object getItem(int position) {// TODO Auto-generated method stubreturn list_notetag_date.get(position);}@Overridepublic long getItemId(int position) {// TODO Auto-generated method stubreturn position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {add_note_noteTag notetag = null;if(convertView==null){convertView = inflater.inflate(R.layout.add_note_tag_list_item, null);notetag = new add_note_noteTag();notetag.txt_add_note_tag_list_name = (TextView)convertView.findViewById(R.id.txt_add_note_tag_list_name);notetag.chk_add_note_tag_list_chk = (CheckBox)convertView.findViewById(R.id.chk_add_note_tag_list_chk);convertView.setTag(notetag);}else {notetag = (add_note_noteTag)convertView.getTag();}notetag.txt_add_note_tag_list_name.setText(list_notetag_date.get(position).get_tagName());notetag.chk_add_note_tag_list_chk.setChecked(isSelected.get(position));return convertView;}public class add_note_noteTag{TextView txt_add_note_tag_list_name;CheckBox chk_add_note_tag_list_chk;}}
应用页面:
list_popwin_note_tag.setAdapter(new Add_note_tag_list_BaseAdapter(this, list_noteTag_date));list_popwin_note_tag.setOnItemClickListener(new noteTagListItemOnClickListener());
/*** 点击列表项事件* @author cg**/class noteTagListItemOnClickListener implements OnItemClickListener{@Overridepublic void onItemClick(AdapterView<?> arg0, View view, int position,long arg3) {// TODO Auto-generated method stubadd_note_noteTag vHollder = (add_note_noteTag) view.getTag();//在每次获取点击的item时将对于的checkbox状态改变,同时修改map的值。vHollder.chk_add_note_tag_list_chk.setChecked(vHollder.chk_add_note_tag_list_chk.isChecked()==true ? false : true);boolean check = vHollder.chk_add_note_tag_list_chk.isChecked();Add_note_tag_list_BaseAdapter.isSelected.put(position, check);Log.v("noteTagListItemOnClickListener", list_noteTag_date.get(position).get_tagName() + check);}}
希望本文所述对大家Android程序设计有所帮助。