Pop up pairing another ear dialog when detecting hearing aid is a set

* Pop up dialog in 'Connected deivce' page and 'Accessibility -> Hearing
  aids' page

Bug: 225117454
Bug: 226511985
Test: make RunSettingsRoboTests ROBOTEST_FILTER=HearingAidPairingDialogFragmentTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=AvailableMediaDeviceGroupControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=AccessibilityHearingAidPreferenceControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=HearingAidUtils

Change-Id: I34a1e3ac680a7efe97dc501bfbe93f840ad16364

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

@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2022 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.settings.accessibility;
+
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+import androidx.fragment.app.FragmentManager;
+
+import com.android.settings.bluetooth.HearingAidPairingDialogFragment;
+import com.android.settingslib.bluetooth.CachedBluetoothDevice;
+import com.android.settingslib.bluetooth.HearingAidProfile;
+
+/** Provides utility methods related hearing aids. */
+public final class HearingAidUtils {
+    private static final String TAG = "HearingAidUtils";
+
+    private HearingAidUtils(){}
+
+    /**
+     * Launches pairing dialog when hearing aid device needs other side of hearing aid device to
+     * work.
+     *
+     * @param fragmentManager The {@link FragmentManager} used to show dialog fragment
+     * @param device The {@link CachedBluetoothDevice} need to be hearing aid device
+     */
+    public static void launchHearingAidPairingDialog(FragmentManager fragmentManager,
+            @NonNull CachedBluetoothDevice device) {
+        if (device.isConnectedHearingAidDevice()
+                && device.getDeviceMode() == HearingAidProfile.DeviceMode.MODE_BINAURAL
+                && device.getSubDevice() == null) {
+            launchHearingAidPairingDialogInternal(fragmentManager, device);
+        }
+    }
+
+    private static void launchHearingAidPairingDialogInternal(FragmentManager fragmentManager,
+            @NonNull CachedBluetoothDevice device) {
+        if (device.getDeviceSide() == HearingAidProfile.DeviceSide.SIDE_INVALID) {
+            Log.w(TAG, "Can not launch hearing aid pairing dialog for invalid side");
+            return;
+        }
+        HearingAidPairingDialogFragment.newInstance(device).show(fragmentManager,
+                HearingAidPairingDialogFragment.TAG);
+    }
+}