2 files changed, 46 insertions, 0 deletions
diff --git a/java/com/android/incallui/InCallServiceImpl.java b/java/com/android/incallui/InCallServiceImpl.java
index a2e243202..a08ee0aa5 100644
--- a/java/com/android/incallui/InCallServiceImpl.java
+++ b/java/com/android/incallui/InCallServiceImpl.java
@@ -77,6 +77,7 @@ public class InCallServiceImpl extends InCallService {
     Trace.beginSection("InCallServiceImpl.onBind");
     final Context context = getApplicationContext();
     final ContactInfoCache contactInfoCache = ContactInfoCache.getInstance(context);
+    AudioModeProvider.getInstance().initializeAudioState(this);
     InCallPresenter.getInstance()
         .setUp(
             context,
diff --git a/java/com/android/incallui/audiomode/AudioModeProvider.java b/java/com/android/incallui/audiomode/AudioModeProvider.java
index f62afa7f2..eb59e95d4 100644
--- a/java/com/android/incallui/audiomode/AudioModeProvider.java
+++ b/java/com/android/incallui/audiomode/AudioModeProvider.java
@@ -16,7 +16,11 @@
 
 package com.android.incallui.audiomode;
 
+import android.content.Context;
+import android.media.AudioDeviceInfo;
+import android.media.AudioManager;
 import android.telecom.CallAudioState;
+import com.android.dialer.common.LogUtil;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -61,6 +65,47 @@ public class AudioModeProvider {
     return audioState;
   }
 
+  /**
+   * Sets a approximated audio state before {@link #onAudioStateChanged} is called. Classes such as
+   * {@link com.android.incallui.ProximitySensor} fetches the audio state before it is updated by
+   * telecom. This method attempts to guess the correct routing based on connected audio devices.
+   * The audio state may still be wrong on a second call due to b/64811128, telecom setting the
+   * route back to earpiece when a call ends.
+   */
+  public void initializeAudioState(Context context) {
+    onAudioStateChanged(
+        new CallAudioState(false, getApproximatedAudioRoute(context), SUPPORTED_AUDIO_ROUTE_ALL));
+  }
+
+  private static int getApproximatedAudioRoute(Context context) {
+    AudioManager audioManager = context.getSystemService(AudioManager.class);
+    boolean hasBluetooth = false;
+    boolean hasHeadset = false;
+    for (AudioDeviceInfo info : audioManager.getDevices(AudioManager.GET_DEVICES_OUTPUTS)) {
+      switch (info.getType()) {
+        case AudioDeviceInfo.TYPE_BLUETOOTH_A2DP:
+        case AudioDeviceInfo.TYPE_BLUETOOTH_SCO:
+          hasBluetooth = true;
+          continue;
+        case AudioDeviceInfo.TYPE_WIRED_HEADSET:
+          hasHeadset = true;
+          continue;
+        default:
+          continue;
+      }
+    }
+    if (hasBluetooth) {
+      LogUtil.i("AudioModeProvider.getApproximatedAudioRoute", "Routing to bluetooth");
+      return CallAudioState.ROUTE_BLUETOOTH;
+    }
+    if (hasHeadset) {
+      LogUtil.i("AudioModeProvider.getApproximatedAudioRoute", "Routing to headset");
+      return CallAudioState.ROUTE_WIRED_HEADSET;
+    }
+    LogUtil.i("AudioModeProvider.getApproximatedAudioRoute", "Routing to earpiece");
+    return CallAudioState.ROUTE_EARPIECE;
+  }
+
   /** Notified on changes to audio mode. */
   public interface AudioModeListener {