ListView选中后错位问题及解决方案（含单选和多选）

来源：互联网发布：mac打开appstore好慢编辑：程序博客网时间：2024/06/11 20:49

一、单选错位

1、在监听处设置选中的位置

@Overridepublic void onItemClick(AdapterView<?> parent, View view, int position,long id) {<strong>selectPosition = position;</strong>adapter.notifyDataSetChanged();}

2、在Adapter中根据position设置选中状态

if (position != selectPosition) {holder.selItem.setChecked(false);} else {holder.selItem.setChecked(true);}

二、多选错位

思路：为每一条item设置状态之，默认为false

代码：在Adapter中：

package com.qloudfin.jpaybusiness.pos;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;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.CompoundButton;import android.widget.CompoundButton.OnCheckedChangeListener;import android.widget.ListAdapter;import android.widget.TextView;import com.qloudfin.jpaywallet.R;public class AddCouponAdapter extends BaseAdapter implements ListAdapter {private LayoutInflater inflater;private List<AddCouponBean> list;final private Map<Integer, Map<String, Object>> maps;public static ArrayList<String> strList;public static ArrayList<String> strList1;private int CheckBtn = -1;public AddCouponAdapter(Context context, ArrayList<AddCouponBean> list2) {this.inflater = LayoutInflater.from(context);this.list = list2;strList = new ArrayList<String>();strList1 = new ArrayList<String>();//为每个item设置初始状态为false</strong>maps = new HashMap<Integer, Map<String, Object>>();Map<String, Object> map;for (int i = 0; i < list.size(); i++) {map = new HashMap<String, Object>();map.put("status", false);maps.put(i, map);</span>}}@Overridepublic int getCount() {return list.size();}@Overridepublic Object getItem(int position) {return null;}@Overridepublic long getItemId(int position) {return 0;}@Overridepublic View getView(final int position, View convertView, ViewGroup parent) {final ViewHolder holder;if (convertView == null) {convertView = inflater.inflate(R.layout.item_add_coupon, null);holder = new ViewHolder();holder.addCouponType = (TextView) convertView.findViewById(R.id.tv_addcoupon_type);holder.cb = (CheckBox) convertView.findViewById(R.id.rb_add);convertView.setTag(holder);} else {holder = (ViewHolder) convertView.getTag();}AddCouponBean info = list.get(position);holder.addCouponType.setText(info.getAddCoupon_type());maps.get(position).put("data", info.getAddCoupon_type());

//设置选择的监听，更新选择状态holder.cb.setChecked((Boolean) maps.get(position).get("status"));holder.cb.setOnCheckedChangeListener(new OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {maps.get(position).put("status", isChecked);if (isChecked) {strList.add((String) maps.get(position).get("data"));} else {strList.remove((String) maps.get(position).get("data"));}}});return convertView;}private class ViewHolder {public TextView addCouponType;// public CheckBox rb;public CheckBox cb;}}

0 0