1 /*
2  * Copyright (C) 2015 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 
17 package com.android.setupwizardlib.items;
18 
19 import android.view.View;
20 
21 /**
22  * Representation of an item in an {@link ItemHierarchy}.
23  */
24 public interface IItem {
25 
26     /**
27      * Get the Android resource ID for locating the layout for this item.
28      *
29      * @return Resource ID for the layout of this item. This layout will be used to inflate the View
30      *         passed to {@link #onBindView(android.view.View)}.
31      */
getLayoutResource()32     int getLayoutResource();
33 
34     /**
35      * Called by items framework to display the data specified by this item. This method should
36      * update {@code view} to reflect its data.
37      *
38      * @param view A view inflated from {@link #getLayoutResource()}, which should be updated to
39      *             display data from this item. This view may be recycled from other items with the
40      *             same layout resource.
41      */
onBindView(View view)42     void onBindView(View view);
43 
44     /**
45      * @return True if this item is enabled.
46      */
isEnabled()47     boolean isEnabled();
48 }
49