Android编程之listView中checkbox用法实例分析

<?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">  <TextView    android: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"    />  <CheckBox    android: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>

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);    }  }  @Override  public int getCount() {    // TODO Auto-generated method stub    return list_notetag_date.size();  }  @Override  public Object getItem(int position) {    // TODO Auto-generated method stub    return list_notetag_date.get(position);  }  @Override  public long getItemId(int position) {    // TODO Auto-generated method stub    return position;  }  @Override  public 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;  }}

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{    @Override    public void onItemClick(AdapterView<?> arg0, View view, int position,        long arg3) {      // TODO Auto-generated method stub      add_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);    }}