1/*
2 * Copyright (C) 2014 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 com.android.tv.settings.widget;
18
19import android.view.View;
20import android.view.ViewGroup;
21import android.widget.Adapter;
22
23/**
24 * The adapter for ScrollAdapterView which supports expanding.
25 */
26public interface ScrollAdapter extends ScrollAdapterBase {
27
28    /**
29     * Optional method to be implemented by {@link ScrollAdapter}. Returns the
30     * {@link ScrollAdapterBase} that {@link ScrollAdapterView} will invoke
31     * {@link Adapter#getView(int,View,ViewGroup)} to create an expanded view. Returns null if the
32     * adapter does not want to support expanding.
33     */
34    public ScrollAdapterBase getExpandAdapter();
35
36}
37