Merge "docs: fixing a couple of typos" into pi-dev
diff --git a/core/java/android/accounts/AbstractAccountAuthenticator.java b/core/java/android/accounts/AbstractAccountAuthenticator.java
index a3b3a9f..79d1361 100644
--- a/core/java/android/accounts/AbstractAccountAuthenticator.java
+++ b/core/java/android/accounts/AbstractAccountAuthenticator.java
@@ -17,7 +17,6 @@
 package android.accounts;
 
 import android.Manifest;
-import android.annotation.SystemApi;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
@@ -32,8 +31,8 @@
 
 /**
  * Abstract base class for creating AccountAuthenticators.
- * In order to be an authenticator one must extend this class, provider implementations for the
- * abstract methods and write a service that returns the result of {@link #getIBinder()}
+ * In order to be an authenticator one must extend this class, provide implementations for the
+ * abstract methods, and write a service that returns the result of {@link #getIBinder()}
  * in the service's {@link android.app.Service#onBind(android.content.Intent)} when invoked
  * with an intent with action {@link AccountManager#ACTION_AUTHENTICATOR_INTENT}. This service
  * must specify the following intent filter and metadata tags in its AndroidManifest.xml file
diff --git a/core/java/android/util/FeatureFlagUtils.java b/core/java/android/util/FeatureFlagUtils.java
index c861499..01e2db2 100644
--- a/core/java/android/util/FeatureFlagUtils.java
+++ b/core/java/android/util/FeatureFlagUtils.java
@@ -33,6 +33,8 @@
 
     public static final String FFLAG_PREFIX = "sys.fflag.";
     public static final String FFLAG_OVERRIDE_PREFIX = FFLAG_PREFIX + "override.";
+    public static final String PERSIST_PREFIX = "persist." + FFLAG_OVERRIDE_PREFIX;
+    public static final String HEARING_AID_SETTINGS = "settings_bluetooth_hearing_aid";
 
     private static final Map<String, String> DEFAULT_FLAGS;
     static {
@@ -44,6 +46,7 @@
         DEFAULT_FLAGS.put("settings_data_usage_v2", "true");
         DEFAULT_FLAGS.put("settings_audio_switcher", "true");
         DEFAULT_FLAGS.put("settings_systemui_theme", "true");
+        DEFAULT_FLAGS.put(HEARING_AID_SETTINGS, "true");
     }
 
     /**
diff --git a/location/java/android/location/Criteria.java b/location/java/android/location/Criteria.java
index a6099be..74eb445 100644
--- a/location/java/android/location/Criteria.java
+++ b/location/java/android/location/Criteria.java
@@ -21,9 +21,9 @@
 
 /**
  * A class indicating the application criteria for selecting a
- * location provider.  Providers maybe ordered according to accuracy,
- * power usage, ability to report altitude, speed,
- * and bearing, and monetary cost.
+ * location provider. Providers may be ordered according to accuracy,
+ * power usage, ability to report altitude, speed, bearing, and monetary
+ * cost.
  */
 public class Criteria implements Parcelable {
     /**
diff --git a/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDevice.java b/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDevice.java
index bb8fbe2..1a8e24f 100644
--- a/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDevice.java
+++ b/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDevice.java
@@ -143,8 +143,8 @@
 
     void onProfileStateChanged(LocalBluetoothProfile profile, int newProfileState) {
         if (Utils.D) {
-            Log.d(TAG, "onProfileStateChanged: profile " + profile +
-                    " newProfileState " + newProfileState);
+            Log.d(TAG, "onProfileStateChanged: profile " + profile + ", device=" + mDevice
+                    + ", newProfileState " + newProfileState);
         }
         if (mLocalAdapter.getBluetoothState() == BluetoothAdapter.STATE_TURNING_OFF)
         {
@@ -224,6 +224,10 @@
         connectWithoutResettingTimer(connectAllProfiles);
     }
 
+    public boolean isHearingAidDevice() {
+        return mHiSyncId != BluetoothHearingAid.HI_SYNC_ID_INVALID;
+    }
+
     void onBondingDockConnect() {
         // Attempt to connect if UUIDs are available. Otherwise,
         // we will connect when the ACTION_UUID intent arrives.
@@ -1189,7 +1193,8 @@
      * @return {@code true} if {@code cachedBluetoothDevice} is a2dp device
      */
     public boolean isA2dpDevice() {
-        return mProfileManager.getA2dpProfile().getConnectionStatus(mDevice) ==
+        A2dpProfile a2dpProfile = mProfileManager.getA2dpProfile();
+        return a2dpProfile != null && a2dpProfile.getConnectionStatus(mDevice) ==
                 BluetoothProfile.STATE_CONNECTED;
     }
 
@@ -1197,7 +1202,17 @@
      * @return {@code true} if {@code cachedBluetoothDevice} is HFP device
      */
     public boolean isHfpDevice() {
-        return mProfileManager.getHeadsetProfile().getConnectionStatus(mDevice) ==
+        HeadsetProfile headsetProfile = mProfileManager.getHeadsetProfile();
+        return headsetProfile != null && headsetProfile.getConnectionStatus(mDevice) ==
+                BluetoothProfile.STATE_CONNECTED;
+    }
+
+    /**
+     * @return {@code true} if {@code cachedBluetoothDevice} is Hearing Aid device
+     */
+    public boolean isConnectedHearingAidDevice() {
+        HearingAidProfile hearingAidProfile = mProfileManager.getHearingAidProfile();
+        return hearingAidProfile != null && hearingAidProfile.getConnectionStatus(mDevice) ==
                 BluetoothProfile.STATE_CONNECTED;
     }
 }
diff --git a/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceManager.java b/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceManager.java
index e9d96ae..1bfcf9a 100644
--- a/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceManager.java
+++ b/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceManager.java
@@ -162,14 +162,14 @@
      */
     public synchronized String getHearingAidPairDeviceSummary(CachedBluetoothDevice device) {
         String pairDeviceSummary = null;
-        if (device.getHiSyncId() != BluetoothHearingAid.HI_SYNC_ID_INVALID) {
-            for (CachedBluetoothDevice hearingAidDevice : mHearingAidDevicesNotAddedInCache) {
-                if (hearingAidDevice.getHiSyncId() != BluetoothHearingAid.HI_SYNC_ID_INVALID
-                    && hearingAidDevice.getHiSyncId() == device.getHiSyncId()) {
-                    pairDeviceSummary = hearingAidDevice.getConnectionSummary();
-                }
-            }
+        CachedBluetoothDevice otherHearingAidDevice =
+            getHearingAidOtherDevice(device, device.getHiSyncId());
+        if (otherHearingAidDevice != null) {
+            pairDeviceSummary = otherHearingAidDevice.getConnectionSummary();
         }
+        log("getHearingAidPairDeviceSummary: pairDeviceSummary=" + pairDeviceSummary
+            + ", otherHearingAidDevice=" + otherHearingAidDevice);
+ 
         return pairDeviceSummary;
     }
 
@@ -358,7 +358,7 @@
         }
     }
 
-    private CachedBluetoothDevice getHearingAidOtherDevice(CachedBluetoothDevice thisDevice,
+    public CachedBluetoothDevice getHearingAidOtherDevice(CachedBluetoothDevice thisDevice,
                                                            long hiSyncId) {
         if (hiSyncId == BluetoothHearingAid.HI_SYNC_ID_INVALID) {
             return null;
diff --git a/packages/SettingsLib/src/com/android/settingslib/bluetooth/LocalBluetoothProfileManager.java b/packages/SettingsLib/src/com/android/settingslib/bluetooth/LocalBluetoothProfileManager.java
index 62f8724..7ff5448 100644
--- a/packages/SettingsLib/src/com/android/settingslib/bluetooth/LocalBluetoothProfileManager.java
+++ b/packages/SettingsLib/src/com/android/settingslib/bluetooth/LocalBluetoothProfileManager.java
@@ -123,6 +123,14 @@
 
         ParcelUuid[] uuids = adapter.getUuids();
 
+        List<Integer> supportedList = mLocalAdapter.getSupportedProfiles();
+        if (supportedList.contains(BluetoothProfile.HEARING_AID)) {
+            mHearingAidProfile = new HearingAidProfile(mContext, mLocalAdapter, mDeviceManager,
+                                                       this);
+            addProfile(mHearingAidProfile, HearingAidProfile.NAME,
+                       BluetoothHearingAid.ACTION_CONNECTION_STATE_CHANGED);
+        }
+
         // uuids may be null if Bluetooth is turned off
         if (uuids != null) {
             updateLocalProfiles(uuids);
@@ -159,13 +167,6 @@
         addProfile(mPbapProfile, PbapServerProfile.NAME,
              BluetoothPbap.ACTION_CONNECTION_STATE_CHANGED);
 
-        List<Integer> supportedList = mLocalAdapter.getSupportedProfiles();
-        if (supportedList.contains(BluetoothProfile.HEARING_AID)) {
-            mHearingAidProfile = new HearingAidProfile(mContext, mLocalAdapter, mDeviceManager,
-                                                       this);
-            addProfile(mHearingAidProfile, HearingAidProfile.NAME,
-                       BluetoothHearingAid.ACTION_CONNECTION_STATE_CHANGED);
-        }
         if (DEBUG) Log.d(TAG, "LocalBluetoothProfileManager construction complete");
     }
 
@@ -360,9 +361,10 @@
                 Log.i(TAG, "Failed to connect " + mProfile + " device");
             }
 
-            if (getHearingAidProfile() != null &&
-                mProfile instanceof HearingAidProfile &&
-                (newState == BluetoothProfile.STATE_CONNECTED)) {
+            boolean isHearingAidProfile = (getHearingAidProfile() != null) &&
+                (mProfile instanceof HearingAidProfile);
+
+            if (isHearingAidProfile && (newState == BluetoothProfile.STATE_CONNECTED)) {
                 // Check if the HiSyncID has being initialized
                 if (cachedDevice.getHiSyncId() == BluetoothHearingAid.HI_SYNC_ID_INVALID) {
 
@@ -375,10 +377,22 @@
                 }
             }
 
-            mEventManager.dispatchProfileConnectionStateChanged(cachedDevice, newState,
-                    mProfile.getProfileId());
             cachedDevice.onProfileStateChanged(mProfile, newState);
             cachedDevice.refresh();
+
+            if (isHearingAidProfile) {
+                CachedBluetoothDevice otherDevice =
+                    mDeviceManager.getHearingAidOtherDevice(cachedDevice, cachedDevice.getHiSyncId());
+                if (otherDevice != null) {
+                    if (DEBUG) {
+                        Log.d(TAG, "Refreshing other hearing aid=" + otherDevice
+                               + ", newState=" + newState);
+                    }
+                    otherDevice.refresh();
+                }
+            }
+            mEventManager.dispatchProfileConnectionStateChanged(cachedDevice, newState,
+                    mProfile.getProfileId());
         }
     }
 
diff --git a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceManagerTest.java b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceManagerTest.java
index 16ed85c..db9b44f 100644
--- a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceManagerTest.java
+++ b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceManagerTest.java
@@ -835,4 +835,20 @@
         assertThat(cachedDevice2.isActiveDevice(BluetoothProfile.HEADSET)).isFalse();
         assertThat(cachedDevice2.isActiveDevice(BluetoothProfile.HEARING_AID)).isFalse();
     }
+
+    /**
+     * Test to verify getHearingAidOtherDevice() for hearing aid devices with same HiSyncId.
+     */
+    @Test
+    public void testGetHearingAidOtherDevice_bothHearingAidsPaired_returnsOtherDevice() {
+        mCachedDevice1.setHiSyncId(HISYNCID1);
+        mCachedDevice2.setHiSyncId(HISYNCID1);
+        mCachedDeviceManager.mCachedDevices.add(mCachedDevice1);
+        mCachedDeviceManager.mHearingAidDevicesNotAddedInCache.add(mCachedDevice2);
+        doAnswer((invocation) -> DEVICE_SUMMARY_1).when(mCachedDevice1).getConnectionSummary();
+        doAnswer((invocation) -> DEVICE_SUMMARY_2).when(mCachedDevice2).getConnectionSummary();
+
+        assertThat(mCachedDeviceManager.getHearingAidOtherDevice(mCachedDevice1, HISYNCID1))
+            .isEqualTo(mCachedDevice2);
+    }
 }
diff --git a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceTest.java b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceTest.java
index 927a94f..30da882 100644
--- a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceTest.java
+++ b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceTest.java
@@ -28,6 +28,7 @@
 
 import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothHearingAid;
 import android.bluetooth.BluetoothProfile;
 import android.content.Context;
 import android.media.AudioManager;
@@ -572,4 +573,55 @@
 
         assertThat(mCachedDevice.isHfpDevice()).isFalse();
     }
+
+    @Test
+    public void isConnectedHearingAidDevice_connected_returnTrue() {
+        when(mProfileManager.getHearingAidProfile()).thenReturn(mHearingAidProfile);
+        when(mHearingAidProfile.getConnectionStatus(mDevice)).
+                thenReturn(BluetoothProfile.STATE_CONNECTED);
+
+        assertThat(mCachedDevice.isConnectedHearingAidDevice()).isTrue();
+    }
+
+    @Test
+    public void isConnectedHearingAidDevice_disconnected_returnFalse() {
+        when(mProfileManager.getHearingAidProfile()).thenReturn(mHearingAidProfile);
+        when(mHearingAidProfile.getConnectionStatus(mDevice)).
+                thenReturn(BluetoothProfile.STATE_DISCONNECTED);
+
+        assertThat(mCachedDevice.isConnectedHearingAidDevice()).isFalse();
+    }
+
+    @Test
+    public void isConnectedHfpDevice_profileIsNull_returnFalse() {
+        when(mProfileManager.getHeadsetProfile()).thenReturn(null);
+
+        assertThat(mCachedDevice.isHfpDevice()).isFalse();
+    }
+
+    @Test
+    public void isConnectedA2dpDevice_profileIsNull_returnFalse() {
+        when(mProfileManager.getA2dpProfile()).thenReturn(null);
+
+        assertThat(mCachedDevice.isA2dpDevice()).isFalse();
+    }
+
+    @Test
+    public void isConnectedHearingAidDevice_profileIsNull_returnFalse() {
+        when(mProfileManager.getHearingAidProfile()).thenReturn(null);
+
+        assertThat(mCachedDevice.isConnectedHearingAidDevice()).isFalse();
+    }
+
+    @Test
+    public void testIsHearingAidDevice_isHearingAidDevice() {
+        mCachedDevice.setHiSyncId(0x1234);
+        assertThat(mCachedDevice.isHearingAidDevice()).isTrue();
+    }
+
+    @Test
+    public void testIsHearingAidDevice_isNotHearingAidDevice() {
+        mCachedDevice.setHiSyncId(BluetoothHearingAid.HI_SYNC_ID_INVALID);
+        assertThat(mCachedDevice.isHearingAidDevice()).isFalse();
+    }
 }
diff --git a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/LocalBluetoothProfileManagerTest.java b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/LocalBluetoothProfileManagerTest.java
index d342bc8..d7b651b 100644
--- a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/LocalBluetoothProfileManagerTest.java
+++ b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/LocalBluetoothProfileManagerTest.java
@@ -21,6 +21,7 @@
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.anyLong;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
@@ -52,6 +53,7 @@
 @RunWith(RobolectricTestRunner.class)
 @Config(resourceDir = "../../res")
 public class LocalBluetoothProfileManagerTest {
+    private final static long HI_SYNC_ID = 0x1234;
     @Mock
     private CachedBluetoothDeviceManager mDeviceManager;
     @Mock
@@ -62,6 +64,8 @@
     private BluetoothDevice mDevice;
     @Mock
     private CachedBluetoothDevice mCachedBluetoothDevice;
+    @Mock
+    private CachedBluetoothDevice mHearingAidOtherDevice;
 
     private Context mContext;
     private LocalBluetoothProfileManager mProfileManager;
@@ -200,6 +204,32 @@
     }
 
     /**
+     * Verify BluetoothHearingAid.ACTION_CONNECTION_STATE_CHANGED with uuid intent will dispatch to
+     * refresh both sides devices.
+     */
+    @Test
+    public void stateChangedHandler_receiveHAPConnectionStateChanged_shouldRefreshBothSides() {
+        ArrayList<Integer> supportProfiles = new ArrayList<>();
+        supportProfiles.add(BluetoothProfile.HEARING_AID);
+        when(mAdapter.getSupportedProfiles()).thenReturn(supportProfiles);
+        when(mCachedBluetoothDevice.getHiSyncId()).thenReturn(HI_SYNC_ID);
+        when(mDeviceManager.getHearingAidOtherDevice(mCachedBluetoothDevice, HI_SYNC_ID))
+            .thenReturn(mHearingAidOtherDevice);
+
+        mProfileManager = new LocalBluetoothProfileManager(mContext, mAdapter, mDeviceManager,
+                mEventManager);
+        mIntent = new Intent(BluetoothHearingAid.ACTION_CONNECTION_STATE_CHANGED);
+        mIntent.putExtra(BluetoothDevice.EXTRA_DEVICE, mDevice);
+        mIntent.putExtra(BluetoothProfile.EXTRA_PREVIOUS_STATE, BluetoothProfile.STATE_CONNECTING);
+        mIntent.putExtra(BluetoothProfile.EXTRA_STATE, BluetoothProfile.STATE_CONNECTED);
+
+        mContext.sendBroadcast(mIntent);
+
+        verify(mCachedBluetoothDevice).refresh();
+        verify(mHearingAidOtherDevice).refresh();
+    }
+
+    /**
      * Verify BluetoothPan.ACTION_CONNECTION_STATE_CHANGED intent with uuid will dispatch to
      * profile connection state changed callback
      */
diff --git a/services/core/java/com/android/server/BluetoothManagerService.java b/services/core/java/com/android/server/BluetoothManagerService.java
index aa426d3..78b7385 100644
--- a/services/core/java/com/android/server/BluetoothManagerService.java
+++ b/services/core/java/com/android/server/BluetoothManagerService.java
@@ -53,12 +53,16 @@
 import android.os.RemoteCallbackList;
 import android.os.RemoteException;
 import android.os.SystemClock;
+import android.os.SystemProperties;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.os.UserManagerInternal;
 import android.os.UserManagerInternal.UserRestrictionsListener;
 import android.provider.Settings;
 import android.provider.Settings.SettingNotFoundException;
+import android.text.TextUtils;
+import android.util.FeatureFlagUtils;
+import android.util.Log;
 import android.util.Slog;
 import android.util.StatsLog;
 
@@ -386,6 +390,15 @@
         mCallbacks = new RemoteCallbackList<IBluetoothManagerCallback>();
         mStateChangeCallbacks = new RemoteCallbackList<IBluetoothStateChangeCallback>();
 
+        // TODO: We need a more generic way to initialize the persist keys of FeatureFlagUtils
+        boolean isHearingAidEnabled;
+        String value = SystemProperties.get(FeatureFlagUtils.PERSIST_PREFIX + FeatureFlagUtils.HEARING_AID_SETTINGS);
+        if (!TextUtils.isEmpty(value)) {
+            isHearingAidEnabled = Boolean.parseBoolean(value);
+            Log.v(TAG, "set feature flag HEARING_AID_SETTINGS to " + isHearingAidEnabled);
+            FeatureFlagUtils.setEnabled(context, FeatureFlagUtils.HEARING_AID_SETTINGS, isHearingAidEnabled);
+        }
+
         IntentFilter filter = new IntentFilter();
         filter.addAction(BluetoothAdapter.ACTION_LOCAL_NAME_CHANGED);
         filter.addAction(BluetoothAdapter.ACTION_BLUETOOTH_ADDRESS_CHANGED);
diff --git a/services/core/java/com/android/server/am/UserController.java b/services/core/java/com/android/server/am/UserController.java
index 415a822..4746e12 100644
--- a/services/core/java/com/android/server/am/UserController.java
+++ b/services/core/java/com/android/server/am/UserController.java
@@ -845,10 +845,16 @@
     }
 
     void scheduleStartProfiles() {
-        if (!mHandler.hasMessages(START_PROFILES_MSG)) {
-            mHandler.sendMessageDelayed(mHandler.obtainMessage(START_PROFILES_MSG),
-                    DateUtils.SECOND_IN_MILLIS);
-        }
+        // Parent user transition to RUNNING_UNLOCKING happens on FgThread, so it is busy, there is
+        // a chance the profile will reach RUNNING_LOCKED while parent is still locked, so no
+        // attempt will be made to unlock the profile. If we go via FgThread, this will be executed
+        // after the parent had chance to unlock fully.
+        FgThread.getHandler().post(() -> {
+            if (!mHandler.hasMessages(START_PROFILES_MSG)) {
+                mHandler.sendMessageDelayed(mHandler.obtainMessage(START_PROFILES_MSG),
+                        DateUtils.SECOND_IN_MILLIS);
+            }
+        });
     }
 
     void startProfiles() {