在 android 的片段中设置列表视图适配器
我想要一个自定义行，因此我在 xml 中使用列表视图并膨胀为片段。我对如何设置列表视图的适配器感到非常困惑。 我创建了一个扩展基本适配器的新适配器。在 getView 方法中，我真的不知道在膨胀 row.xml 布局时要传递什么上下文。 如何设置列表视图的适配器以及在哪里设置？
public class ResultsFragment extends Fragment{
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.results_layout, container, false);
listView = (ListView)v.findViewById(R.id.results);
return v;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
loadPage(dataBean.getWhat(), dataBean.getWhere(), dataBean.getPageStart());
//resultsAdapter.setRssData(rssData);
//setListAdapter(resultsAdapter);
}
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
Context context = getActivity().getApplicationContext();
resultsAdapter = new ResultsAdapter(context);
}
/**
* Set List Adapter
*/
private void setAdapter(){
if(listView.getAdapter() == null){
listView.setAdapter(resultsAdapter);
}
else{
resultsAdapter.notifyDataSetChanged();
}
}
}
I want a custom row, so I am using a List View in an xml and inflating into a fragment. I am very confused of how to set the adapter for the list View.
I created a new adapter which extends Base Adapter. In the getView method, I really don't know what context to pass while inflating the row.xml layout.
How do I set the adapter for the list view and where?
public class ResultsFragment extends Fragment{
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.results_layout, container, false);
listView = (ListView)v.findViewById(R.id.results);
return v;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
loadPage(dataBean.getWhat(), dataBean.getWhere(), dataBean.getPageStart());
//resultsAdapter.setRssData(rssData);
//setListAdapter(resultsAdapter);
}
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
Context context = getActivity().getApplicationContext();
resultsAdapter = new ResultsAdapter(context);
}
/**
* Set List Adapter
*/
private void setAdapter(){
if(listView.getAdapter() == null){
listView.setAdapter(resultsAdapter);
}
else{
resultsAdapter.notifyDataSetChanged();
}
}
}
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您必须扩展
Listfragment（而不是Fragment），并使用其ListFragment.setListAdapter来设置适配器。在适配器getView()中膨胀您的行..仅此而已You must extend
Listfragment(instead ofFragment), and using itsListFragment.setListAdapterto set your adapter. In the adaptergetView()inflate your row.. that s all如果您不想更改扩展类，则应该使用
listview.setAdapter(...)方法。正如您在我的示例中看到的：If you do not want to change your extended class, you should use
listview.setAdapter(...)method. As you see in my example :