1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
package org.thialfihar.android.apg.ui;
import org.thialfihar.android.apg.Id;
import org.thialfihar.android.apg.provider.ApgContract.SecretKeyRings;
import org.thialfihar.android.apg.provider.ApgContract.SecretUserIds;
import org.thialfihar.android.apg.ui.widget.ExpandableListFragment;
import org.thialfihar.android.apg.ui.widget.KeyListAdapter;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.LoaderManager;
public class KeyListSecretFragment extends ExpandableListFragment implements
LoaderManager.LoaderCallbacks<Cursor> {
private FragmentActivity mActivity;
private KeyListAdapter mAdapter;
// private long mCurrentRowId;
/**
* Define Adapter and Loader on create of Activity
*/
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
mActivity = getActivity();
// register long press context menu
registerForContextMenu(getListView());
// Give some text to display if there is no data. In a real
// application this would come from a resource.
setEmptyText("TODO empty");
// We have a menu item to show in action bar.
setHasOptionsMenu(true);
mAdapter = new KeyListAdapter(mActivity, getLoaderManager(), null, Id.type.secret_key);
setListAdapter(mAdapter);
// Start out with a progress indicator.
setListShown(false);
// Prepare the loader. Either re-connect with an existing one,
// or start a new one.
getLoaderManager().initLoader(-1, null, this);
}
// These are the rows that we will retrieve.
static final String[] PROJECTION = new String[] { SecretKeyRings._ID,
SecretKeyRings.MASTER_KEY_ID, SecretUserIds.USER_ID };
static final String SORT_ORDER = SecretUserIds.USER_ID + " ASC";
@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.
Uri baseUri = SecretKeyRings.buildSecretKeyRingsUri();
// Now create and return a CursorLoader that will take care of
// creating a Cursor for the data being displayed.
return new CursorLoader(getActivity(), baseUri, PROJECTION, null, null, SORT_ORDER);
}
@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.setGroupCursor(data);
// The list should now be shown.
if (isResumed()) {
setListShown(true);
} else {
setListShownNoAnimation(true);
}
}
@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.
mAdapter.setGroupCursor(null);
}
}
|
