1/*
2 * Copyright (C) 2009 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.inputmethod.pinyin;
18
19import android.content.Context;
20import android.media.AudioManager;
21
22/**
23 * Class used to manage related sound resources.
24 */
25public class SoundManager {
26    private static SoundManager mInstance = null;
27    private Context mContext;
28    private AudioManager mAudioManager;
29    // Align sound effect volume on music volume
30    private final float FX_VOLUME = -1.0f;
31    private boolean mSilentMode;
32
33    private SoundManager(Context context) {
34        mContext = context;
35        updateRingerMode();
36    }
37
38    public void updateRingerMode() {
39        if (mAudioManager == null) {
40            mAudioManager = (AudioManager) mContext
41                    .getSystemService(Context.AUDIO_SERVICE);
42        }
43        mSilentMode = (mAudioManager.getRingerMode() != AudioManager.RINGER_MODE_NORMAL);
44    }
45
46    public static SoundManager getInstance(Context context) {
47        if (null == mInstance) {
48            if (null != context) {
49                mInstance = new SoundManager(context);
50            }
51        }
52        return mInstance;
53    }
54
55    public void playKeyDown() {
56        if (mAudioManager == null) {
57            updateRingerMode();
58        }
59        if (!mSilentMode) {
60            int sound = AudioManager.FX_KEYPRESS_STANDARD;
61            mAudioManager.playSoundEffect(sound, FX_VOLUME);
62        }
63    }
64}
65