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 
17 package android.text.method;
18 
19 import android.view.KeyEvent;
20 import 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  */
29 public class DateKeyListener extends NumberKeyListener
30 {
getInputType()31     public int getInputType() {
32         return InputType.TYPE_CLASS_DATETIME
33                 | InputType.TYPE_DATETIME_VARIATION_DATE;
34     }
35 
36     @Override
getAcceptedChars()37     protected char[] getAcceptedChars()
38     {
39         return CHARACTERS;
40     }
41 
getInstance()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