Integrate `getAudioInputControlPoints()` into SettingsLib

Add this API into VolumeControlProfile to get the AICS control points of
the remote device.

Flag: com.android.settingslib.flags.hearing_devices_ambient_volume_control
Bug: 357878944
Test: atest VolumeControlProfileTest
Change-Id: I0020c5babd5f176ad2f3db37e1237c5b8d3b5f32

2 files changed, 33 insertions, 0 deletions

diff --git a/packages/SettingsLib/src/com/android/settingslib/bluetooth/VolumeControlProfile.java b/packages/SettingsLib/src/com/android/settingslib/bluetooth/VolumeControlProfile.java
index ab7a3db4b3bb..d85b92f0216b 100644
--- a/packages/SettingsLib/src/com/android/settingslib/bluetooth/VolumeControlProfile.java
+++ b/packages/SettingsLib/src/com/android/settingslib/bluetooth/VolumeControlProfile.java
@@ -21,6 +21,7 @@ import static android.bluetooth.BluetoothProfile.CONNECTION_POLICY_FORBIDDEN;
 
 import android.annotation.CallbackExecutor;
 import android.annotation.IntRange;
+import android.bluetooth.AudioInputControl;
 import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothClass;
 import android.bluetooth.BluetoothDevice;
@@ -34,6 +35,7 @@ import androidx.annotation.NonNull;
 import androidx.annotation.RequiresApi;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.Executor;
 
@@ -168,6 +170,7 @@ public class VolumeControlProfile implements LocalBluetoothProfile {
         }
         mService.setVolumeOffset(device, volumeOffset);
     }
+
     /**
      * Provides information about the possibility to set volume offset on the remote device. If the
      * remote device supports Volume Offset Control Service, it is automatically connected.
@@ -210,6 +213,22 @@ public class VolumeControlProfile implements LocalBluetoothProfile {
         mService.setDeviceVolume(device, volume, isGroupOp);
     }
 
+    /**
+     * Returns a list of {@link AudioInputControl} objects associated with a Bluetooth device.
+     *
+     * @param device The remote Bluetooth device.
+     * @return A list of {@link AudioInputControl} objects, or an empty list if no AICS instances
+     *     are found or if an error occurs.
+     * @hide
+     */
+    public @NonNull List<AudioInputControl> getAudioInputControlServices(
+            @NonNull BluetoothDevice device) {
+        if (mService == null) {
+            return Collections.emptyList();
+        }
+        return mService.getAudioInputControlServices(device);
+    }
+
     @Override
     public boolean accessProfileEnabled() {
         return false;
diff --git a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/VolumeControlProfileTest.java b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/VolumeControlProfileTest.java
index 9c518de18582..bd67394dcc62 100644
--- a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/VolumeControlProfileTest.java
+++ b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/VolumeControlProfileTest.java
@@ -24,6 +24,7 @@ import static com.google.common.truth.Truth.assertThat;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+import android.bluetooth.AudioInputControl;
 import android.bluetooth.BluetoothDevice;
 import android.bluetooth.BluetoothManager;
 import android.bluetooth.BluetoothProfile;
@@ -45,6 +46,7 @@ import org.robolectric.RobolectricTestRunner;
 import org.robolectric.annotation.Config;
 import org.robolectric.shadow.api.Shadow;
 
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.concurrent.Executor;
@@ -248,4 +250,16 @@ public class VolumeControlProfileTest {
         verify(mService).isVolumeOffsetAvailable(mBluetoothDevice);
         assertThat(available).isFalse();
     }
+
+    @Test
+    public void getAudioInputControlServices_verifyIsCalledAndReturnNonNullList() {
+        mServiceListener.onServiceConnected(BluetoothProfile.VOLUME_CONTROL, mService);
+        when(mService.getAudioInputControlServices(mBluetoothDevice)).thenReturn(new ArrayList<>());
+
+        final List<AudioInputControl> controls = mProfile.getAudioInputControlServices(
+                mBluetoothDevice);
+
+        verify(mService).getAudioInputControlServices(mBluetoothDevice);
+        assertThat(controls).isNotNull();
+    }
 }