Android listview中item的点击显示或隐藏错乱的解决办法

在listview的adapter中作item点击监听事件时会出现显示错乱的问题,这个问题的解决办法也就是为点击的控件加一个tag,以下代码:

public class PriceMenuDetailAdapter extends BaseAdapter {

    private ArrayList<AddQuotationBean.ASQuotations> list_quotation;
    private Context context;
    private boolean[] showControl;//代表对应的item是否须要展开

    public PriceMenuDetailAdapter(ArrayList<AddQuotationBean.ASQuotations> list_quotation, Context context) {
        this.list_quotation = list_quotation;
        this.context = context;
        showControl = new boolean[list_quotation.size()];//此时数组中的默认值都是false
    }

    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {
        ViewHolder viewHolder = null;
        if (view == null) {
            view = LayoutInflater.from(context).inflate(R.layout.item_price_menu_detail, null);
            viewHolder = new ViewHolder();
           /*加载id*/
            view.setTag(viewHolder);
        } else {
            viewHolder = (ViewHolder) view.getTag();
        }
        AddQuotationBean.ASQuotations asQuotations = list_quotation.get(i);
        viewHolder.tv_space_name.setText(asQuotations.SpaceName);
        viewHolder.tv_diff_sum.setText("¥" + Util.getNonScientificCount(asQuotations.SpaceTotalMoney + "", true));
        viewHolder.ll_info.removeAllViews();
        ArrayList<AddQuotationBean.QDetails> list_detail = asQuotations.QDetails;
        for (int k = 0; k < list_detail.size(); k++) {
            viewHolder.ll_info.addView(returnView(list_detail.get(k), k, list_detail.size()));
        }

        viewHolder.price_detail_layout.setTag(i);//为点击的区域设置Tag为position
        if (showControl[i]) {//加载item的时候查看是否须要打开或隐藏
            viewHolder.ll_info.setVisibility(View.GONE);
        } else {
            viewHolder.ll_info.setVisibility(View.VISIBLE);
        }
        viewHolder.price_detail_layout.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                int tag = (int) v.getTag();//获取点击位置对应的tag值
                if (showControl[tag]) {//改变数组中对应的值
                    showControl[tag] = false;
                } else {
                    showControl[tag] = true;
                }
               ** notifyDataSetChanged();//从新加载**
            }
        });

        return view;
    }

    private class ViewHolder{
        private TextView tv_space_name;// 空间名
        private TextView tv_diff_sum;// 差价小计
        private LinearLayout ll_info;// 材料信息
        private RelativeLayout price_detail_layout;//空间名和差价小计总体的布局
    }

}

注意:咱们平时对 ListView 作的最多的操做就是 setOnItemClickListener，这个操做通常都是在 Activity 中进行的，此时响应区域是 Item 总体，无论你点击 Item 的哪一个角落都会响应。而对于每一个 Item 中子控件的事件监听（区别于整个Item，好比说 Item 中的按钮、输入框等等）都是在适配器类中添加，此时只有点击添加监听的子控件区域才会响应，至关于每一个 Item 中的该控件都添加了监听。OnClick 的响应优先级：子控件（元控件）> 父布局（可是不像 onTouch 事件有 Boolean 返回值那样，OnClick 事件是没有返回值的，便是“阻断式式响应”，不会再响应它所归属的上层控件）。

能够看到上面代码中加粗的" notifyDataSetChanged();//从新加载"这一句,这样写在adapter里面,若是是数据量大的状况下会形成listview滑动出现卡顿的现象,为了不出现这种状况,能够修改代码以下:

/**@title PriceMenuDetailAdapter 填写报价单详情页面ListView的适配器
 * @author Eric
 * @date 2017/3/30
 **/
public class PriceMenuDetailAdapter extends BaseAdapter {

    private ArrayList<AddQuotationBean.ASQuotations> list_quotation;
    private Context context;
    private boolean[] isShowContentClose;//代表对应的item是否须要展开,true为隐藏,false为打开

    public PriceMenuDetailAdapter(ArrayList<AddQuotationBean.ASQuotations> list_quotation, Context context) {
        this.list_quotation = list_quotation;
        this.context = context;
        isShowContentClose = new boolean[list_quotation.size()];//此时数组中的默认值都是false
    }
    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {
        ViewHolder viewHolder = null;
        if (view == null) {
            view = LayoutInflater.from(context).inflate(R.layout.item_price_menu_detail, null);
            viewHolder = new ViewHolder();
           /*加载id*/
            view.setTag(viewHolder);
        } else {
            viewHolder = (ViewHolder) view.getTag();
        }
        AddQuotationBean.ASQuotations asQuotations = list_quotation.get(i);
        viewHolder.tv_space_name.setText(asQuotations.SpaceName);
        viewHolder.tv_diff_sum.setText("¥" + Util.getNonScientificCount(asQuotations.SpaceTotalMoney + "", true));

        viewHolder.ll_info.removeAllViews();
        ArrayList<AddQuotationBean.QDetails> list_detail = asQuotations.QDetails;
        for (int k = 0; k < list_detail.size(); k++) {
            viewHolder.ll_info.addView(returnView(list_detail.get(k), k, list_detail.size()));
        }

        viewHolder.price_detail_layout.setTag(i);//为点击的区域设置Tag为position
         //至关于初始化控件的显示或隐藏
        if (isShowContentClose[i]) {//加载item的时候查看是否须要打开或隐藏
            viewHolder.ll_info.setVisibility(View.GONE);
        } else {
            viewHolder.ll_info.setVisibility(View.VISIBLE);
        }
        actionClick(viewHolder.price_detail_layout, viewHolder.ll_info);


        return view;
    }

    //点击事件监听
    private void actionClick(final RelativeLayout price_detail_layout, final LinearLayout ll_info) {
        try {
            price_detail_layout.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    int tag = (int) v.getTag();//获取点击位置对应的tag值
                    if (isShowContentClose[tag]) {//改变数组中对应的值
                        isShowContentClose[tag] = false;
                    } else {
                        isShowContentClose[tag] = true;
                    }
                    if (isShowContentClose[tag]) {//加载item的时候查看是否须要打开或隐藏
                        //手风琴效果,若是为true则隐藏若是为false则打开
                        ll_info.setVisibility(View.GONE);
                    } else {
                        ll_info.setVisibility(View.VISIBLE);
                    }
                }
            });
        } catch (Exception e) {
            LogUtil.e(getClass(), "actionClick()", e);
        }
    }

    private class ViewHolder{
        private TextView tv_space_name;// 空间名
        private TextView tv_diff_sum;// 差价小计
        private LinearLayout ll_info;// 材料信息
        private RelativeLayout price_detail_layout;//空间名和差价小计总体的布局
    }
}

总结:用一个集合加载position对应控件的tag状态,先初始化控件的隐藏或显示,在点击事件里面,改变对应集合的状态,而后改变控件的隐藏或显示.