Add audio mode and audio focus support to Telecomm
This CL adds support for:
- audio focus
- switching to speaker phone
- mute
- wired headset
Bluetooth support is coming in a different CL.
Change-Id: Iaf4013ea747548451cff45b48bcbb5b1dd1b8498
diff --git a/src/com/android/telecomm/WiredHeadsetManager.java b/src/com/android/telecomm/WiredHeadsetManager.java
new file mode 100644
index 0000000..329df71
--- /dev/null
+++ b/src/com/android/telecomm/WiredHeadsetManager.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2014 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.telecomm;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.media.AudioManager;
+
+/**
+ * Listens for and caches headset state. Used By the CallAudioManger for maintaining
+ * overall audio state for use in the UI layer. Also provides method for connecting the bluetooth
+ * headset to the phone call.
+ */
+class WiredHeadsetManager {
+ /** Receiver for wired headset plugged and unplugged events. */
+ private class WiredHeadsetBroadcastReceiver extends BroadcastReceiver {
+ @Override
+ public void onReceive(Context context, Intent intent) {
+ if (intent.getAction().equals(Intent.ACTION_HEADSET_PLUG)) {
+ boolean isPluggedIn = intent.getIntExtra("state", 0) == 1;
+ Log.v(WiredHeadsetManager.this, "ACTION_HEADSET_PLUG event, plugged in: %b",
+ isPluggedIn);
+ onHeadsetPluggedInChanged(isPluggedIn);
+ }
+ }
+ }
+
+ private final CallAudioManager mCallAudioManager;
+ private final WiredHeadsetBroadcastReceiver mReceiver;
+ private boolean mIsPluggedIn;
+
+ WiredHeadsetManager(CallAudioManager callAudioManager) {
+ mCallAudioManager = callAudioManager;
+ mReceiver = new WiredHeadsetBroadcastReceiver();
+
+ Context context = TelecommApp.getInstance();
+ AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
+ mIsPluggedIn = audioManager.isWiredHeadsetOn();
+
+ // Register for misc other intent broadcasts.
+ IntentFilter intentFilter = new IntentFilter(Intent.ACTION_HEADSET_PLUG);
+ context.registerReceiver(mReceiver, intentFilter);
+ }
+
+ boolean isPluggedIn() {
+ return mIsPluggedIn;
+ }
+
+ private void onHeadsetPluggedInChanged(boolean isPluggedIn) {
+ if (mIsPluggedIn != isPluggedIn) {
+ Log.v(this, "onHeadsetPluggedInChanged, mIsPluggedIn: %b -> %b", mIsPluggedIn,
+ isPluggedIn);
+ boolean oldIsPluggedIn = mIsPluggedIn;
+ mIsPluggedIn = isPluggedIn;
+ mCallAudioManager.onHeadsetPluggedInChanged(oldIsPluggedIn, mIsPluggedIn);
+ }
+ }
+}