1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.widget.listview;
18
19import android.widget.TextView;
20import android.util.ListScenario;
21
22/**
23 * The header text view echos the value of the selected item by using (indirectly)
24 * the {@link android.widget.AdapterView.OnItemSelectedListener}.
25 */
26public class ListWithOnItemSelectedAction extends ListScenario {
27    protected void init(Params params) {
28        params.setNumItems(8)
29                .setItemScreenSizeFactor(0.2)
30                .includeHeaderAboveList(true);
31
32    }
33
34    @Override
35    protected void positionSelected(int positon) {
36        if (positon != getListView().getSelectedItemPosition()) {
37            throw new IllegalStateException("something is fishy... the selected postion does not " +
38                    "match what the list reports.");
39        }
40        setHeaderValue(
41                ((TextView) getListView().getSelectedView()).getText().toString());
42
43    }
44}
45