| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.dialer.app.voicemail; |
| |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.media.AudioManager; |
| import android.util.Log; |
| |
| /** Listens for and caches headset state. */ |
| class WiredHeadsetManager { |
| |
| private static final String TAG = WiredHeadsetManager.class.getSimpleName(); |
| private final WiredHeadsetBroadcastReceiver mReceiver; |
| private boolean mIsPluggedIn; |
| private Listener mListener; |
| private Context mContext; |
| |
| WiredHeadsetManager(Context context) { |
| mContext = context; |
| mReceiver = new WiredHeadsetBroadcastReceiver(); |
| |
| AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); |
| mIsPluggedIn = audioManager.isWiredHeadsetOn(); |
| } |
| |
| void setListener(Listener listener) { |
| mListener = listener; |
| } |
| |
| boolean isPluggedIn() { |
| return mIsPluggedIn; |
| } |
| |
| void registerReceiver() { |
| // Register for misc other intent broadcasts. |
| IntentFilter intentFilter = new IntentFilter(Intent.ACTION_HEADSET_PLUG); |
| mContext.registerReceiver(mReceiver, intentFilter); |
| } |
| |
| void unregisterReceiver() { |
| mContext.unregisterReceiver(mReceiver); |
| } |
| |
| private void onHeadsetPluggedInChanged(boolean isPluggedIn) { |
| if (mIsPluggedIn != isPluggedIn) { |
| Log.v(TAG, "onHeadsetPluggedInChanged, mIsPluggedIn: " + mIsPluggedIn + " -> " + isPluggedIn); |
| boolean oldIsPluggedIn = mIsPluggedIn; |
| mIsPluggedIn = isPluggedIn; |
| if (mListener != null) { |
| mListener.onWiredHeadsetPluggedInChanged(oldIsPluggedIn, mIsPluggedIn); |
| } |
| } |
| } |
| |
| interface Listener { |
| |
| void onWiredHeadsetPluggedInChanged(boolean oldIsPluggedIn, boolean newIsPluggedIn); |
| } |
| |
| /** Receiver for wired headset plugged and unplugged events. */ |
| private class WiredHeadsetBroadcastReceiver extends BroadcastReceiver { |
| |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (AudioManager.ACTION_HEADSET_PLUG.equals(intent.getAction())) { |
| boolean isPluggedIn = intent.getIntExtra("state", 0) == 1; |
| Log.v(TAG, "ACTION_HEADSET_PLUG event, plugged in: " + isPluggedIn); |
| onHeadsetPluggedInChanged(isPluggedIn); |
| } |
| } |
| } |
| } |