1/*
2 * Copyright (C) 2006 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.text.method;
18
19import android.view.KeyEvent;
20import android.text.InputType;
21
22/**
23 * For entering dates in a text field.
24 * <p></p>
25 * As for all implementations of {@link KeyListener}, this class is only concerned
26 * with hardware keyboards.  Software input methods have no obligation to trigger
27 * the methods in this class.
28 */
29public class DateKeyListener extends NumberKeyListener
30{
31    public int getInputType() {
32        return InputType.TYPE_CLASS_DATETIME
33                | InputType.TYPE_DATETIME_VARIATION_DATE;
34    }
35
36    @Override
37    protected char[] getAcceptedChars()
38    {
39        return CHARACTERS;
40    }
41
42    public static DateKeyListener getInstance() {
43        if (sInstance != null)
44            return sInstance;
45
46        sInstance = new DateKeyListener();
47        return sInstance;
48    }
49
50    /**
51     * The characters that are used.
52     *
53     * @see KeyEvent#getMatch
54     * @see #getAcceptedChars
55     */
56    public static final char[] CHARACTERS = new char[] {
57            '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
58            '/', '-', '.'
59        };
60
61    private static DateKeyListener sInstance;
62}
63