Show battery info for mono audio location device

1. Show mono battery info in LeAudioBluetoothDetailsHeaderController
   without side text in front of the battery icon
2. Show mono side device on Settings > Accessibility > Hearing devices's
   summary without side information

Flag: EXEMPT bugfix
Bug: 379616650
Test: atest AccessibilityHearingAidPreferenceControllerTest
Test: manually check UI with real device
Change-Id: I4a1a3357e2cef51df505923e38da33767c78e8f3

res/layout/le_audio_bt_entity_header.xml

@@ -176,5 +176,23 @@
                 android:padding="@dimen/le_bluetooth_summary_padding"
                 android:drawablePadding="@dimen/le_bluetooth_summary_drawable_padding"/>
         </LinearLayout>
+        <LinearLayout
+            android:id="@+id/bt_battery_mono"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="@dimen/le_bluetooth_battery_start_margin"
+            android:layout_marginTop="@dimen/le_bluetooth_battery_top_margin"
+            android:gravity="center_horizontal"
+            android:orientation="horizontal"
+            android:visibility="gone"
+            android:focusable="true">
+            <TextView
+                android:id="@+id/bt_battery_mono_summary"
+                style="@style/TextAppearance.EntityHeaderSummary"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:padding="@dimen/le_bluetooth_summary_padding"
+                android:drawablePadding="@dimen/le_bluetooth_summary_drawable_padding"/>
+        </LinearLayout>
     </LinearLayout>
 </LinearLayout>

src/com/android/settings/accessibility/AccessibilityHearingAidPreferenceController.java

@@ -162,18 +162,13 @@ public class AccessibilityHearingAidPreferenceController extends BasePreferenceC
         }
 
         final int side = device.getDeviceSide();
-        if (side == HearingAidInfo.DeviceSide.SIDE_LEFT_AND_RIGHT) {
+        if (side == HearingAidInfo.DeviceSide.SIDE_LEFT) {
-            return mContext.getString(
-                    R.string.accessibility_hearingaid_left_and_right_side_device_summary, name);
-        } else if (side == HearingAidInfo.DeviceSide.SIDE_LEFT) {
             return mContext.getString(
                     R.string.accessibility_hearingaid_left_side_device_summary, name);
         } else if (side == HearingAidInfo.DeviceSide.SIDE_RIGHT) {
             return mContext.getString(
                     R.string.accessibility_hearingaid_right_side_device_summary, name);
         }
-
-        // Invalid side
         return mContext.getString(
                 R.string.accessibility_hearingaid_active_device_summary, name);
     }

src/com/android/settings/bluetooth/LeAudioBluetoothDetailsHeaderController.java

@@ -225,6 +225,8 @@ public class LeAudioBluetoothDetailsHeaderController extends BasePreferenceContr
             return R.id.bt_battery_left_summary;
         } else if (containerId == R.id.bt_battery_right) {
             return R.id.bt_battery_right_summary;
+        } else if (containerId == R.id.bt_battery_mono) {
+            return R.id.bt_battery_mono_summary;
         }
         Log.d(TAG, "No summary resource id. The containerId is " + containerId);
         return INVALID_RESOURCE_ID;
@@ -237,6 +239,8 @@ public class LeAudioBluetoothDetailsHeaderController extends BasePreferenceContr
         updateBatteryLayout(R.id.bt_battery_left, BluetoothUtils.META_INT_ERROR);
         // hide the right
         updateBatteryLayout(R.id.bt_battery_right, BluetoothUtils.META_INT_ERROR);
+        // hide the mono
+        updateBatteryLayout(R.id.bt_battery_mono, BluetoothUtils.META_INT_ERROR);
     }
 
     private void updateBatteryLayout() {
@@ -261,11 +265,6 @@ public class LeAudioBluetoothDetailsHeaderController extends BasePreferenceContr
             int deviceId = leAudioProfile.getAudioLocation(cachedDevice.getDevice());
             Log.d(TAG, "LeAudioDevices:" + cachedDevice.getDevice().getAnonymizedAddress()
                     + ", deviceId:" + deviceId);
-
-            if (deviceId == BluetoothLeAudio.AUDIO_LOCATION_INVALID) {
-                Log.d(TAG, "The device does not support the AUDIO_LOCATION.");
-                return;
-            }
             boolean isLeft = (deviceId & LEFT_DEVICE_ID) != 0;
             boolean isRight = (deviceId & RIGHT_DEVICE_ID) != 0;
             boolean isLeftRight = isLeft && isRight;
@@ -280,6 +279,8 @@ public class LeAudioBluetoothDetailsHeaderController extends BasePreferenceContr
                 updateBatteryLayout(R.id.bt_battery_left, cachedDevice.getBatteryLevel());
             } else if (isRight) {
                 updateBatteryLayout(R.id.bt_battery_right, cachedDevice.getBatteryLevel());
+            } else if (deviceId == BluetoothLeAudio.AUDIO_LOCATION_MONO) {
+                updateBatteryLayout(R.id.bt_battery_mono, cachedDevice.getBatteryLevel());
             } else {
                 Log.d(TAG, "The device id is other Audio Location. Do nothing.");
             }

tests/robotests/src/com/android/settings/accessibility/AccessibilityHearingAidPreferenceControllerTest.java

@@ -208,7 +208,24 @@ public class AccessibilityHearingAidPreferenceControllerTest {
         ShadowLooper.idleMainLooper();
 
         assertThat(mHearingAidPreference.getSummary().toString().contentEquals(
-                "TEST_HEARING_AID_BT_DEVICE_NAME / Left and right")).isTrue();
+                "TEST_HEARING_AID_BT_DEVICE_NAME active")).isTrue();
+    }
+
+    @Test
+    public void getSummary_connectedLeAudioHearingAidMonoSide_connectedSummary() {
+        when(mCachedBluetoothDevice.getDeviceSide()).thenReturn(
+                HearingAidInfo.DeviceSide.SIDE_MONO);
+        when(mCachedBluetoothDevice.getMemberDevice()).thenReturn(new HashSet<>());
+        when(mHapClientProfile.getConnectedDevices()).thenReturn(generateHearingAidDeviceList());
+
+        mPreferenceController.onStart();
+        Intent intent = new Intent(BluetoothHapClient.ACTION_HAP_CONNECTION_STATE_CHANGED);
+        intent.putExtra(BluetoothHearingAid.EXTRA_STATE, BluetoothHapClient.STATE_CONNECTED);
+        sendIntent(intent);
+        ShadowLooper.idleMainLooper();
+
+        assertThat(mHearingAidPreference.getSummary().toString().contentEquals(
+                "TEST_HEARING_AID_BT_DEVICE_NAME active")).isTrue();
     }
 
     @Test