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Clean up loader demo.

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Change-Id: Ie7ade888389523360e930f051a2143159a7a4f06
This commit is contained in:
Dianne Hackborn
2010-12-20 23:12:34 -08:00
parent 7947d1aff8
commit e4459d5d11
1 changed files with 16 additions and 27 deletions
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43
samples/ApiDemos/src/com/example/android/apis/app/FragmentListCursorLoader.java
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@@ -77,6 +77,13 @@ public class FragmentListCursorLoader extends Activity {
// We have a menu item to show in action bar.
setHasOptionsMenu(true);
// Create an empty adapter we will use to display the loaded data.
mAdapter = new SimpleCursorAdapter(getActivity(),
android.R.layout.simple_list_item_2, null,
new String[] { Contacts.DISPLAY_NAME, Contacts.CONTACT_STATUS },
new int[] { android.R.id.text1, android.R.id.text2 }, 0);
setListAdapter(mAdapter);
// Prepare the loader. Either re-connect with an existing one,
// or start a new one.
getLoaderManager().initLoader(0, null, this);
@@ -92,25 +99,21 @@ public class FragmentListCursorLoader extends Activity {
item.setActionView(sv);
}
@Override
public boolean onQueryTextChanged(String newText) {
@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) {
@Override public boolean onSubmitQuery(String query) {
// Don't care about this.
return true;
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
@Override public void onListItemClick(ListView l, View v, int position, long id) {
// Insert desired behavior here.
Log.i("FragmentComplexList", "Item clicked: " + id);
}
@@ -125,7 +128,7 @@ public class FragmentListCursorLoader extends Activity {
Contacts.LOOKUP_KEY,
};
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
@Override 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
@@ -148,27 +151,13 @@ public class FragmentListCursorLoader extends Activity {
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 }, 0);
setListAdapter(mAdapter);
} else {
// 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);
}
@Override public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
// Swap the new cursor in. (The framework will take care of closing the
// old cursor once we return.)
mAdapter.swapCursor(data);
}
public void onLoaderReset(Loader<Cursor> loader) {
@Override public void onLoaderReset(Loader<Cursor> loader) {
// 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.