notifyDataSetChanged listview内容没更新的问题

如红色部分所示，需在Adapter添加setData方法，当 listData中数据更改后，调用setData，为Adapter设置新的数据，此时调用notifyDataSetChanged() 就可以刷新内容了。

 

package com.baclock.adapter;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.baclock.R;
import com.baclock.entity.GISTrackEntity;

import java.util.List;

public class GISTrackAdapter extends BaseAdapter {

    public static interface IMsgViewType {
        int IMVT_FROM_MSG = 0;
        int IMVT_TO_MSG = 1;
    }

    private static final String TAG = GISTrackAdapter.class.getSimpleName();

    private List<GISTrackEntity> coll;

    private Context ctx;

    private LayoutInflater mInflater;

    public GISTrackAdapter(Context context, List<GISTrackEntity> coll) {
        ctx = context;
        this.coll = coll;
        mInflater = LayoutInflater.from(context);
    }

    public int getCount() {
        return coll.size();
    }

    public Object getItem(int position) {
        return coll.get(position);
    }

    public long getItemId(int position) {
        return position;
    }

//    public int getItemViewType(int position) {
//        // TODO Auto-generated method stub
//        GISTrackEntity entity = coll.get(position);
//
//        if (entity.getMsgType()) {
//            return IMsgViewType.IMVT_FROM_MSG;
//        } else {
//            return IMsgViewType.IMVT_TO_MSG;
//        }
//    }

    public int getViewTypeCount() {
        // TODO Auto-generated method stub
        return 2;
    }

    public void setData(List<GISTrackEntity> data)
    {
        // TODO Auto-generated method stub
        this.coll = data;
    }

    public View getView(int position, View convertView, ViewGroup parent) {

        final GISTrackEntity entity = coll.get(position);

        ViewHolder viewHolder = null;
        if (convertView == null) {
            convertView = mInflater.inflate(R.layout.layout_gis_track, null);

            viewHolder = new ViewHolder();
            viewHolder.tvTime = (TextView) convertView.findViewById(R.id.tvTime);
            viewHolder.ivSelect = (ImageView) convertView.findViewById(R.id.ivSelect);

            convertView.setTag(viewHolder);
        } else {
            viewHolder = (ViewHolder) convertView.getTag();
        }

        viewHolder.tvTime.setText(entity.getTag());
        return convertView;
    }

    static class ViewHolder {
        public TextView tvTime;
        public ImageView ivSelect;
    }
}

 

listData.add(item); 

choosePLvAdapt.setData(listData);

choosePLvAdapt.notifyDataSetChanged();