我写$ C $下一个Android应用程序。我有一类叫做类,其中有一个ID和名称。我已经保存了数据转换为SQLite数据库,当我读了所有的行从数据库中,我已经将它们保存到一个列表类型列表。
I am writing code for an Android application. I have a class called Categories, which has an ID and a name. I have saved the data into a SQLite Database and when I read all rows from the database, i have saved them into a List type list.
现在,我该如何填充列表视图显示我的身份证和类别上的列表视图。
Now, how do I populate the listview to show my ID and category on the Listview.
P.S。我有一个线性布局一个列表视图和有在顶部标题部分
P.S. I have a Listview in a Linear Layout and there is a header section on the top.
使用下面ListAdapter您的ListView
ListAdapter.java
use below ListAdapter for your listView
ListAdapter.java
public class ListAdapter extends BaseAdapter {
private LayoutInflater myInflater;
private List<YOURDATATYPE> list;
public ListAdapter(Context context) {
myInflater = LayoutInflater.from(context);
}
public void setData(List<YOURDATATYPE> list) {
this.list = list;
}
@Override
public int getCount() {
return list.size();
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
convertView = myInflater.inflate(R.layout.row, null);
holder = new ViewHolder();
holder.id = (TextView) convertView.findViewById(R.id.id);
holder.category = (TextView) convertView.findViewById(R.id.category);
convertView.setTag(holder);
holder.id.setText(list.get(position).id);
holder.category.setText(list.get(position).category);
return convertView;
}
static class ViewHolder {
TextView id;
TextView category ;
}
}
在OnCreate中的ListActivity()
in your ListActivity in OnCreate()
adapter = new ListAdapter();
listView = getListView();
adapter.setData(YOUR LIST FROM DATABASE);
listView.setAdapter(adapter);