Show intro and footer string according to the device's supported status

Bug: 390078046
Bug: 386121967
Test: atest HearingAidHelperTest HearingDeviceFooterPreferenceControllerTest HearingDeviceIntroPreferenceControllerTest BluetoothDetailsHearingDeviceSettingsControllerTest
Flag: EXEMPT bugfix
Change-Id: I564cdb80cd14f4d2d8e882b64db939449c6936b7
Signed-off-by: Jie Wang <jie.x.wang@sony.com>
Signed-off-by: Jason Hsu <jasonwshsu@google.com>

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

@@ -94,6 +94,22 @@ public class HearingAidHelper {
                 || supportedList.contains(BluetoothProfile.HAP_CLIENT);
     }
 
+    /**
+     * Checks if {@link BluetoothProfile#HEARING_AID} supported.
+     */
+    public boolean isAshaProfileSupported() {
+        final List<Integer> supportedList = mBluetoothAdapter.getSupportedProfiles();
+        return supportedList.contains(BluetoothProfile.HEARING_AID);
+    }
+
+    /**
+     * Checks if {@link BluetoothProfile#HAP_CLIENT} supported.
+     */
+    public boolean isHapClientProfileSupported() {
+        final List<Integer> supportedList = mBluetoothAdapter.getSupportedProfiles();
+        return supportedList.contains(BluetoothProfile.HAP_CLIENT);
+    }
+
     /**
      * Checks if {@link BluetoothProfile#HEARING_AID} or {@link BluetoothProfile#HAP_CLIENT}
      * profiles all ready.

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

@@ -24,12 +24,27 @@ import androidx.preference.PreferenceScreen;
 
 import com.android.settings.R;
 
+import com.google.common.annotations.VisibleForTesting;
+
 /** Preference controller for footer in hearing device page. */
 public class HearingDeviceFooterPreferenceController extends
         AccessibilityFooterPreferenceController {
-    public HearingDeviceFooterPreferenceController(Context context,
-            String key) {
+    private final HearingAidHelper mHelper;
+
+    public HearingDeviceFooterPreferenceController(
+            @NonNull Context context,
+            @NonNull String key) {
         super(context, key);
+        mHelper = new HearingAidHelper(context);
+    }
+
+    @VisibleForTesting
+    public HearingDeviceFooterPreferenceController(
+            @NonNull Context context,
+            @NonNull String key,
+            @NonNull HearingAidHelper hearingAidHelper) {
+        super(context, key);
+        mHelper = hearingAidHelper;
     }
 
     @Override
@@ -37,22 +52,47 @@ public class HearingDeviceFooterPreferenceController extends
         return mContext.getString(R.string.accessibility_hearing_device_about_title);
     }
 
+    @Override
+    public int getAvailabilityStatus() {
+        return mHelper.isHearingAidSupported() ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
+    }
+
     @Override
     public void displayPreference(@NonNull PreferenceScreen screen) {
         super.displayPreference(screen);
 
         final AccessibilityFooterPreference footerPreference =
                 screen.findPreference(getPreferenceKey());
+        final boolean isAshaProfileSupported = mHelper.isAshaProfileSupported();
+        final boolean isHapClientProfileSupported = mHelper.isHapClientProfileSupported();
+        final String summary;
+        final String summaryTts;
+        if (isAshaProfileSupported && isHapClientProfileSupported) {
+            summary = mContext.getString(R.string.accessibility_hearing_device_footer_summary);
+            summaryTts = mContext.getString(
+                    R.string.accessibility_hearing_device_footer_summary_tts);
+        } else if (isAshaProfileSupported) {
+            summary = mContext.getString(
+                    R.string.accessibility_hearing_device_footer_asha_only_summary);
+            summaryTts = mContext.getString(
+                    R.string.accessibility_hearing_device_footer_asha_only_summary_tts);
+        } else if (isHapClientProfileSupported) {
+            summary = mContext.getString(
+                    R.string.accessibility_hearing_device_footer_hap_only_summary);
+            summaryTts = mContext.getString(
+                    R.string.accessibility_hearing_device_footer_hap_only_summary_tts);
+        } else {
+            return;
+        }
+
         // We use html tag inside footer string, so it is better to load from html to have better
         // html tag support.
         final CharSequence title = Html.fromHtml(
-                mContext.getString(R.string.accessibility_hearing_device_footer_summary),
+                summary,
                 Html.FROM_HTML_MODE_COMPACT, /* imageGetter= */ null, /* tagHandler= */ null);
         footerPreference.setTitle(title);
 
         // Need to update contentDescription string to announce "than" rather than ">"
-        final String summaryTts = mContext.getString(
-                R.string.accessibility_hearing_device_footer_summary_tts);
         final String contentDescription = getIntroductionTitle() + "\n\n" + summaryTts;
         footerPreference.setContentDescription(contentDescription);
     }

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

@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2025 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.content.Context;
+
+import androidx.annotation.NonNull;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+
+import com.google.common.annotations.VisibleForTesting;
+
+public class HearingDeviceIntroPreferenceController extends BasePreferenceController {
+    private final HearingAidHelper mHelper;
+
+    public HearingDeviceIntroPreferenceController(
+            @NonNull Context context,
+            @NonNull String preferenceKey) {
+        super(context, preferenceKey);
+        mHelper = new HearingAidHelper(context);
+    }
+
+    @VisibleForTesting
+    public HearingDeviceIntroPreferenceController(
+            @NonNull Context context,
+            @NonNull String preferenceKey,
+            @NonNull HearingAidHelper hearingAidHelper) {
+        super(context, preferenceKey);
+        mHelper = hearingAidHelper;
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return mHelper.isHearingAidSupported() ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
+    }
+
+    @Override
+    public void displayPreference(@NonNull PreferenceScreen screen) {
+        super.displayPreference(screen);
+
+        final Preference introPreference = screen.findPreference(getPreferenceKey());
+        final boolean isAshaProfileSupported = mHelper.isAshaProfileSupported();
+        final boolean isHapClientProfileSupported = mHelper.isHapClientProfileSupported();
+        if (isAshaProfileSupported && isHapClientProfileSupported) {
+            introPreference.setTitle(mContext.getString(R.string.accessibility_hearingaid_intro));
+        } else if (isAshaProfileSupported) {
+            introPreference.setTitle(
+                    mContext.getString(R.string.accessibility_hearingaid_asha_only_intro));
+        } else if (isHapClientProfileSupported) {
+            introPreference.setTitle(
+                    mContext.getString(R.string.accessibility_hearingaid_hap_only_intro));
+        } else {
+            // Intentionally blank, getAvailabilityStatus() should handle visibility for
+            // none-supported case.
+        }
+    }
+}

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

@@ -53,7 +53,7 @@ public class BluetoothDetailsHearingDeviceSettingsController extends BluetoothDe
 
     @Override
     public boolean isAvailable() {
-        return mCachedDevice.isHearingAidDevice();
+        return mCachedDevice.isHearingDevice();
     }
 
     @Override