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
|
package course.labs.fragmentslab;
import android.app.Activity;
import android.app.ListFragment;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class FriendsFragment extends ListFragment {
private static final String[] FRIENDS = { "ladygaga", "msrebeccablack", "taylorswift13" };
private static final String TAG = "Lab-Fragments";
public interface SelectionListener {
public void onItemSelected(int position);
}
private SelectionListener mCallback;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// use different layout definition, depending on whether device is pre-
// or post-honeycomb
int layout = Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB ? android.R.layout.simple_list_item_activated_1 : android.R.layout.simple_list_item_1;
// Set the list adapter for this ListFragment
setListAdapter(new ArrayAdapter<String>(getActivity(), layout, FRIENDS));
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
// Make sure that the hosting Activity has implemented
// the SelectionListener callback interface. We need this
// because when an item in this ListFragment is selected,
// the hosting Activity's onItemSelected() method will be called.
try {
mCallback = (SelectionListener) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString() + " must implement SelectionListener");
}
}
// Note: ListFragments come with a default onCreateView() method.
// For other Fragments you'll normally implement this method.
// @Override
// public View onCreateView(LayoutInflater inflater, ViewGroup container,
// Bundle savedInstanceState)
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
Log.i(TAG, "Entered onActivityCreated()");
// When using two-pane layout, configure the ListView to highlight the
// selected list item
if (isInTwoPaneMode()) {
getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE);
}
}
@Override
public void onListItemClick(ListView l, View view, int position, long id) {
// Notify the hosting Activity that a selection has been made.
mCallback.onItemSelected(position);
}
// If there is a FeedFragment, then the layout is two-pane
private boolean isInTwoPaneMode() {
return getFragmentManager().findFragmentById(R.id.feed_frag) != null;
}
}
|
