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