1/*
2 * Copyright (C) 2013 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 com.android.datetimepicker.date;
18
19import android.content.Context;
20import android.text.format.DateUtils;
21import android.util.AttributeSet;
22import android.view.accessibility.AccessibilityEvent;
23import android.widget.ViewAnimator;
24
25public class AccessibleDateAnimator extends ViewAnimator {
26    private long mDateMillis;
27
28    public AccessibleDateAnimator(Context context, AttributeSet attrs) {
29        super(context, attrs);
30    }
31
32    public void setDateMillis(long dateMillis) {
33        mDateMillis = dateMillis;
34    }
35
36    /**
37     * Announce the currently-selected date when launched.
38     */
39    @Override
40    public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
41        if (event.getEventType() == AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED) {
42            // Clear the event's current text so that only the current date will be spoken.
43            event.getText().clear();
44            int flags = DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_YEAR |
45                    DateUtils.FORMAT_SHOW_WEEKDAY;
46
47            String dateString = DateUtils.formatDateTime(getContext(), mDateMillis, flags);
48            event.getText().add(dateString);
49            return true;
50        }
51        return super.dispatchPopulateAccessibilityEvent(event);
52    }
53}