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我試圖實現與頁面加載器的聯繫人列表視圖來管理按需加載和搜索視圖在列表中搜索，但我無法得到它的工作。我是app.allContacts中的所有聯繫人。問題是，searchview不起作用。我不知道它的loaderCallback或searchview。安卓搜索與列表視圖和LoaderCallBack
public class ContactsFragment extends SherlockListFragment {
private SeparatedListAdapter sl;
private SumaApplication app;
private ContactAdapter allContacts;
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
app = (SumaApplication) getActivity().getApplication();
allContacts = new ContactAdapter(getActivity());
sl = new SeparatedListAdapter(new HeaderAdaptor(getActivity(), R.layout.section_title, new ArrayList<String>()));
sl.addSection(getResources().getString(R.string.all_contacts), allContacts);
setListAdapter(sl);
getLoaderManager().initLoader(0, null, loaderCallbak);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_list_contacts, container, false);
((SearchView) v.findViewById(R.id.contacts_to)).setOnQueryTextListener(queryListener);
searchView = new SearchViewImpl(getActivity());
searchView.setOnQueryTextListener(queryListener);
searchView.setOnCloseListener(closeListener);
searchView.setIconifiedByDefault(true);
return v;
}
@Override
public void onDestroyView() {
super.onDestroyView();
}
private SearchView searchView;
private OnCloseListener closeListener = new OnCloseListener() {
@Override
public boolean onClose() {
searchView.setQuery(null, true);
return true;
}
};
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
Intent callIntent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" +((Contact) l.getItemAtPosition(position)).getInfo()));
startActivity(callIntent);
}
private LoaderCallbacks<List<Contact>> loaderCallbak = new LoaderCallbacks<List<Contact>>() {
@Override
public Loader<List<Contact>> onCreateLoader(int arg0, Bundle arg1) {
ContactPageLoader cpl = new ContactPageLoader(getActivity(), app);
cpl.setFilter(currentFilter);
return cpl;
}
@Override
public void onLoadFinished(Loader<List<Contact>> arg0, List<Contact> contacts) {
app.getAllContacts().subList(0, Math.min(app.getAllContacts().size() - 1, 3)));
allContacts.update(app.getAllContacts());
((SeparatedListAdapter) getListAdapter()).notifyDataSetInvalidated();
((SeparatedListAdapter) getListAdapter()).notifyDataSetChanged();
}
@Override
public void onLoaderReset(Loader<List<Contact>> arg0) {
}
};
private static class ContactAdapter extends ArrayAdapter<Contact> {
private LayoutInflater inflater;
public ContactAdapter(Context context) {
super(context, -1);
inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public void update(List<Contact> contacts) {
if (contacts == null) {
return;
}
setNotifyOnChange(false);
clear();
addAll(contacts);
notifyDataSetChanged();
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = inflate(getContext());
}
fill((ViewGroup) convertView, getItem(position));
return convertView;
}
private View inflate(Context context) {
View convertView = inflater.inflate(R.layout.contact_row, null, false);
convertView.setTag(R.id.contact_avatar, convertView.findViewById(R.id.contact_avatar));
convertView.setTag(R.id.contact_name, convertView.findViewById(R.id.contact_name));
convertView.setTag(R.id.contact_info, convertView.findViewById(R.id.contact_info));
return convertView;
}
private static void fill(ViewGroup rl, Contact contact) {
fillTextView(rl, R.id.contact_name, contact.getName());
fillTextView(rl, R.id.contact_info, contact.getInfo());
}
private static void fillTextView(ViewGroup rl, int id, String description) {
TextView t = ((TextView) rl.getTag(id));
t.setText(description);
}
}
public static class ContactPageLoader extends AsyncTaskLoader<List<Contact>> {
private SumaApplication app;
private String filter = null;
public ContactPageLoader(Context context, SumaApplication app) {
super(context);
this.app = app;
}
public void setFilter(String filter) {
this.filter = filter;
}
@Override
public List<Contact> loadInBackground() {
List<Contact> temp = new ArrayList<Contact>();
for(Contact c : app.getAllContacts()){
if(c.getName().matches("(.*)"+filter+"(.*)")){
temp.add(c);
}
}
return temp;
}
@Override
protected void onStartLoading() {
super.onStartLoading();
forceLoad();
}
}
private String currentFilter = null;
private OnQueryTextListener queryListener = new OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
@Override
public boolean onQueryTextChange(String newText) {
// Called when the action bar search text has changed. Update
// the search filter, and restart the loader to do a new query
// with this filter.
String newFilter = newText;
// Don't do anything if the filter hasn't actually changed.
// Prevents restarting the loader when restoring state.
if (currentFilter == null && newFilter == null) {
return true;
}
if (currentFilter != null && currentFilter.equals(newFilter)) {
return true;
}
currentFilter = newFilter;
getLoaderManager().restartLoader(0, null, loaderCallbak);
return true;
}
};
private static class SearchViewImpl extends SearchView {
public SearchViewImpl(Context context) {
super(context);
}
// The normal SearchView doesn't clear its search text when
// collapsed, so we will do this for it.
@Override
public void onActionViewCollapsed() {
setQuery("", false);
super.onActionViewCollapsed();
}
}
}
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:drawingCacheQuality="high"
android:orientation="vertical" >
<SearchView
android:id="@+id/contacts_to"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#f1f1f1"
android:iconifiedByDefault="false"
android:paddingBottom="20dp"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="20dp"
android:queryHint="@string/query_hint"
android:visibility="visible"
android:/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#f7f7f7"
android:orientation="vertical"
android:padding="20dp"
android:visibility="visible" >
<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="@color/separator_line"
android:dividerHeight="1dp" >
</ListView>
</LinearLayout>
不R.id.contacts_to是一個搜索視圖使用搜索查看？張貼您的xml。此外，searchView不會添加到任何視圖。提供更多的信息你試圖達到什麼 – Libin
問題與onCreateView，你設置監聽器搜索視圖的方式 – Libin
是的，這是一個搜索視圖，XML它的搜索視圖與列表視圖，容易，因爲他們來的問題是，列表沒有得到過濾，但我不知道它是否是searchview impl或其他的東西。 –