我正在从人员数据库中创建列表视图。当我点击这个人时,我想提出这些人的详细信息。我想为这个人设置我自己的id,然后提出与此id相对应的详细信息。
我尝试通过向标记对象添加int id并在onItemClick()方法中获取views标记来实现此目的...这适用于列表中的前三项(位置0,1,2)但是第四和第五项提出了第0位的详细信息,第六项提出了第1位的详细信息。然而它确实提出了这些项目的正确细节,这似乎很奇怪。
这是我的baseadapter:
public class ItemListBaseAdapter extends BaseAdapter {
private static ArrayList<PersonObject> itemDetailsrrayList;
private LayoutInflater l_Inflater;
public ItemListBaseAdapter(Context context, ArrayList<PersonObject> results) {
itemDetailsrrayList = results;
l_Inflater = LayoutInflater.from(context);
}
public int getCount() {
return itemDetailsrrayList.size();
}
public Object getItem(int position) {
return itemDetailsrrayList.get(position);
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = l_Inflater.inflate(R.layout.personlist, null);
holder = new ViewHolder();
holder.Name = (TextView) convertView.findViewById(R.id.namespace);
holder.id=itemDetailsrrayList.get(position).getId();
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.Name.setText(itemDetailsrrayList.get(position).getName());
return convertView;
}
}
这是显示列表视图的片段:
public class HomeFragment extends Fragment {
private ListView lv1;
private DatabaseHandler db;
ArrayList<PersonObject> contacts;
private ViewHolder myTag;
private ViewHolder vh;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.item_main, container, false);
lv1 = (ListView) view.findViewById(R.id.listV_main);
db = new DatabaseHandler(getActivity());
contacts=db.getAllPersonItems();
lv1.setAdapter(new ItemListBaseAdapter(getActivity(), contacts));
lv1.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
vh=(ViewHolder)view.getTag();
Intent i=new Intent(getActivity(),TabActivityPersonPage.class);
i.putExtra("id",Integer.toString(vh.id));
startActivity(i);
}
});
return view;
}
}
这是我的ViewHolder类:
公共类ViewHolder {
TextView Name;
TextView ReportedMissing;
ImageView itemImage;
TextView Age;
TextView Contact;
TextView Distance;
int id;
}
我可能会以完全错误的方式接近这个,我&#39;不确定。非常感谢任何帮助。
答案 0 :(得分:1)
在其他部分之后移动跟随行,
holder.id=itemDetailsrrayList.get(position).getId();
所以getView
必须是:
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = l_Inflater.inflate(R.layout.personlist, null);
holder = new ViewHolder();
holder.Name = (TextView) convertView.findViewById(R.id.namespace);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.id=itemDetailsrrayList.get(position).getId();
holder.Name.setText(itemDetailsrrayList.get(position).getName());
return convertView;
}
convertView == null
总是不正确,因此id
对象中的holder
没有更改,您需要在其他部分之后设置您的值以重新初始化该值