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1 | /* |
2 | * Copyright (C) 2011 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 android.support.v2.view; |
18 | |
19 | import android.view.MenuItem; |
20 | |
21 | /** |
22 | * Helper for accessing newer features in menus. |
23 | */ |
24 | public class MenuCompat { |
25 | /** |
26 | * Interface for the full API. |
27 | */ |
28 | interface MenuVersionImpl { |
29 | public boolean setShowAsAction(MenuItem item, int actionEnum); |
30 | } |
31 | |
32 | /** |
33 | * Interface implementation that doesn't use anything about v4 APIs. |
34 | */ |
35 | static class BaseMenuVersionImpl implements MenuVersionImpl { |
36 | @Override |
37 | public boolean setShowAsAction(MenuItem item, int actionEnum) { |
38 | return false; |
39 | } |
40 | } |
41 | |
42 | /** |
43 | * Interface implementation for devices with at least v11 APIs. |
44 | */ |
45 | static class HoneycombMenuVersionImpl implements MenuVersionImpl { |
46 | @Override |
47 | public boolean setShowAsAction(MenuItem item, int actionEnum) { |
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48 | //MenuCompatHoneycomb.setShowAsAction(item, actionEnum); |
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49 | return true; |
50 | } |
51 | } |
52 | |
53 | /** |
54 | * Select the correct implementation to use for the current platform. |
55 | */ |
56 | static final MenuVersionImpl IMPL; |
57 | static { |
58 | //v4 if (android.os.Build.VERSION.SDK_INT >= 11) { |
59 | if (android.support.v2.os.Build.VERSION.SDK_INT >= 11) { |
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60 | IMPL = null;//new HoneycombMenuVersionImpl(); |
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61 | } else { |
62 | IMPL = new BaseMenuVersionImpl(); |
63 | } |
64 | } |
65 | |
66 | // ------------------------------------------------------------------- |
67 | |
68 | /** |
69 | * Call {@link MenuItem#setShowAsAction(int) MenuItem.setShowAsAction()}. |
70 | * If running on a pre-{@android.os.Build.VERSION_CODES#HONEYCOMB} device, |
71 | * does nothing and returns false. Otherwise returns true. |
72 | */ |
73 | public static boolean setShowAsAction(MenuItem item, int actionEnum) { |
74 | return IMPL.setShowAsAction(item, actionEnum); |
75 | } |
76 | } |