/**
* Called when ListView selection is cleared, for example when search mode is finished and the
* currently selected contact should no longer be selected.
*/
private void onSelectionCleared() {
// Uses callback to notify activity this contains this fragment
mOnContactSelectedListener.onSelectionCleared();
// Clears currently checked item
getListView().clearChoices();
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
// This swaps the new cursor into the adapter.
if (loader.getId() == ContactsQuery.QUERY_ID) {
mAdapter.swapCursor(data);
if (!TextUtils.isEmpty(mSearchTerm) && mSearchQueryChanged) {
// Selects the first item in results, unless this fragment has
// been restored from a saved state (like orientation change)
// in which case it selects the previously selected search item.
if (data != null && data.moveToPosition(mPreviouslySelectedSearchItem)) {
// Creates the content Uri for the previously selected
// contact by appending the
// contact's ID to the Contacts table content Uri
final Uri uri =
Uri.withAppendedPath(
Contacts.CONTENT_URI, String.valueOf(data.getLong(ContactsQuery.ID)));
mOnContactSelectedListener.onContactSelected(uri);
getListView().setItemChecked(mPreviouslySelectedSearchItem, true);
} else {
// No results, clear selection.
onSelectionCleared();
}
// Only restore from saved state one time. Next time fall back
// to selecting first item. If the fragment state is saved again
// then the currently selected item will once again be saved.
mPreviouslySelectedSearchItem = 0;
mSearchQueryChanged = false;
}
}
}
@Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
CheckBox checkbox = (CheckBox) v.findViewWithTag(position);
if (checkbox.isChecked()) checkbox.setChecked(false);
else checkbox.setChecked(true);
// Gets the Cursor object currently bound to the ListView
final Cursor cursor = mAdapter.getCursor();
// Moves to the Cursor row corresponding to the ListView item that was
// clicked
cursor.moveToPosition(position);
// Creates a contact lookup Uri from contact ID and lookup_key
final Uri uri =
Contacts.getLookupUri(
cursor.getLong(ContactsQuery.ID), cursor.getString(ContactsQuery.LOOKUP_KEY));
// Notifies the parent activity that the user selected a contact. In a
// two-pane layout, the
// parent activity loads a ContactDetailFragment that displays the
// details for the selected
// contact. In a single-pane layout, the parent activity starts a new
// activity that
// displays contact details in its own Fragment.
mOnContactSelectedListener.onContactSelected(uri);
// If two-pane layout sets the selected item to checked so it remains
// highlighted. In a
// single-pane layout a new activity is started so this is not needed.
}
@Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
// Gets the Cursor object currently bound to the ListView
final Cursor cursor = mAdapter.getCursor();
// Moves to the Cursor row corresponding to the ListView item that was clicked
cursor.moveToPosition(position);
// Creates a contact lookup Uri from contact ID and lookup_key
final Uri uri =
Contacts.getLookupUri(
cursor.getLong(ContactsQuery.ID), cursor.getString(ContactsQuery.LOOKUP_KEY));
// NOTIFIES THE PARENT ACTIVITY that the user selected a contact. Then the parent activity
// starts a new activity that
// displays contact details in its own Fragment.
mOnContactSelectedListener.onContactSelected(uri);
}
