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Update fragment cursor loader sample to new New and Shiny.

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Change-Id: Id7afc9adba3d29f8d3279737443cde1aee58a3bb
This commit is contained in:
Dianne Hackborn
2010-12-16 22:59:04 -08:00
parent ec04e5da4b
commit d08e015b7e
1 changed files with 53 additions and 27 deletions
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80
samples/ApiDemos/src/com/example/android/apis/app/FragmentListCursorLoader.java
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@@ -25,8 +25,10 @@ import android.content.Context;
import android.content.CursorLoader;
import android.content.Loader;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract.Contacts;
import android.text.TextUtils;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
@@ -58,11 +60,14 @@ public class FragmentListCursorLoader extends Activity {
//BEGIN_INCLUDE(fragment_cursor)
public static class CursorLoaderListFragment extends ListFragment
implements OnQueryChangeListener, LoaderManager.LoaderCallbacks<Cursor> {
SimpleCursorAdapter mAdapter;
MenuItem mSearchMenu;
@Override
public void onActivityCreated(Bundle savedInstanceState) {
// This is the Adapter being used to display the list's data.
SimpleCursorAdapter mAdapter;
// If non-null, this is the current filter the user has provided.
String mCurFilter;
@Override public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
// Give some text to display if there is no data. In a real
@@ -77,44 +82,40 @@ public class FragmentListCursorLoader extends Activity {
getLoaderManager().initLoader(0, null, this);
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
mSearchMenu = menu.add("Search");
mSearchMenu.setTitle("Search");
mSearchMenu.setIcon(android.R.drawable.ic_menu_search);
mSearchMenu.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
@Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
// Place an action bar item for searching.
MenuItem item = menu.add("Search");
item.setIcon(android.R.drawable.ic_menu_search);
item.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
SearchView sv = new SearchView(getActivity());
sv.setOnQueryChangeListener(this);
mSearchMenu.setActionView(sv);
item.setActionView(sv);
}
@Override
public boolean onQueryTextChanged(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.
Log.i("foo", "onQueryTextChanged: " + newText);
mCurFilter = !TextUtils.isEmpty(newText) ? newText : null;
getLoaderManager().restartLoader(0, null, this);
return true;
}
@Override
public boolean onSubmitQuery(String query) {
// Don't care about this.
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item == mSearchMenu) {
InputMethodManager imm = (InputMethodManager)getActivity()
.getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(getActivity().getCurrentFocus(), 0);
return true;
} else {
return super.onOptionsItemSelected(item);
}
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
// Insert desired behavior here.
Log.i("FragmentComplexList", "Item clicked: " + id);
}
// These are the Contacts rows that we will retrieve.
static final String[] CONTACTS_SUMMARY_PROJECTION = new String[] {
Contacts._ID,
Contacts.DISPLAY_NAME,
@@ -125,28 +126,53 @@ public class FragmentListCursorLoader extends Activity {
};
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
// This is called when a new Loader needs to be created. This
// sample only has one Loader, so we don't care about the ID.
// First, pick the base URI to use depending on whether we are
// currently filtering.
Uri baseUri;
if (mCurFilter != null) {
baseUri = Uri.withAppendedPath(Contacts.CONTENT_FILTER_URI,
Uri.encode(mCurFilter));
} else {
baseUri = Contacts.CONTENT_URI;
}
// Now create and return a CursorLoader that will take care of
// creating a Cursor for the data being displayed.
String select = "((" + Contacts.DISPLAY_NAME + " NOTNULL) AND ("
+ Contacts.HAS_PHONE_NUMBER + "=1) AND ("
+ Contacts.DISPLAY_NAME + " != '' ))";
return new CursorLoader(getActivity(), Contacts.CONTENT_URI,
return new CursorLoader(getActivity(), baseUri,
CONTACTS_SUMMARY_PROJECTION, select, null,
Contacts.DISPLAY_NAME + " COLLATE LOCALIZED ASC");
}
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
// This is called when the last created Loader has its data
// available to be displayed.
if (mAdapter == null) {
// If this is the first time through, create a new Adapter
// in which to display the data with the Cursor being given
// here as the initial data source.
mAdapter = new SimpleCursorAdapter(getActivity(),
android.R.layout.simple_list_item_2, data,
new String[] { Contacts.DISPLAY_NAME, Contacts.CONTACT_STATUS },
new int[] { android.R.id.text1, android.R.id.text2 });
new int[] { android.R.id.text1, android.R.id.text2 }, 0);
setListAdapter(mAdapter);
} else {
mAdapter.changeCursor(data);
// If we have already created the adapter, just swap in the
// new Cursor. (The framework will take care of closing the
// old cursor once we return.)
mAdapter.swapCursor(data);
}
}
public void onLoaderReset(Loader<Cursor> loader) {
mAdapter.changeCursor(null);
// This is called when the last Cursor provided to onLoadFinished()
// above is about to be closed. We need to make sure we are no
// longer using it.
mAdapter.swapCursor(null);
}
}
//END_INCLUDE(fragment_cursor)