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();
Jack Fan
Email: juan850311@163.com
QQ: 441935503
Email: juan850311@163.com
QQ: 441935503