NavigationSubMenu.java revision 6c72ea0134a3309ff8197f0862aad8d7bc712b55 
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
17package android.support.design.internal;
18
19import android.content.Context;
20import android.support.v7.internal.view.menu.MenuBuilder;
21import android.support.v7.internal.view.menu.MenuItemImpl;
22import android.support.v7.internal.view.menu.SubMenuBuilder;
23import android.view.MenuItem;
24
25/**
26 * This is a {@link SubMenuBuilder} that it notifies the parent {@link NavigationMenu} of its menu
27 * updates.
28 *
29 * @hide
30 */
31public class NavigationSubMenu extends SubMenuBuilder {
32
33    public NavigationSubMenu(Context context, NavigationMenu menu, MenuItemImpl item) {
34        super(context, menu, item);
35    }
36
37    @Override
38    public MenuItem add(CharSequence title) {
39        MenuItem item = super.add(title);
40        notifyParent();
41        return item;
42    }
43
44    @Override
45    public MenuItem add(int titleRes) {
46        MenuItem item = super.add(titleRes);
47        notifyParent();
48        return item;
49    }
50
51    @Override
52    public MenuItem add(int groupId, int itemId, int order, CharSequence title) {
53        MenuItem item = super.add(groupId, itemId, order, title);
54        notifyParent();
55        return item;
56    }
57
58    @Override
59    public MenuItem add(int groupId, int itemId, int order, int titleRes) {
60        MenuItem item = super.add(groupId, itemId, order, titleRes);
61        notifyParent();
62        return item;
63    }
64
65    private void notifyParent() {
66        ((MenuBuilder) getParentMenu()).onItemsChanged(true);
67    }
68
69}
70