Merge "Handles Flash Notifications intro if there's no valid camera" into udc-dev am: a34ab52d0a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/22244838

Change-Id: I8ccb0aa36bb4dd4865659de2bb66742f2b422e08
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

res/values/strings.xml

@@ -11970,6 +11970,8 @@
     <string name="flash_notifications_summary_on_camera_and_screen">On / Camera and screen flash</string>
     <!-- Introduction in Flash Notification page to introduce flash notifications feature. [CHAR LIMIT=NONE]  -->
     <string name="flash_notifications_intro">Flash the camera light or the screen when you receive notifications or when alarms sound</string>
+    <!-- Introduction in Flash Notification page to introduce flash notifications feature without camera flash option. [CHAR LIMIT=NONE]  -->
+    <string name="flash_notifications_intro_without_camera_flash">Flash the screen when you receive notifications or when alarms sound</string>
     <!-- Notes in Flash Notification page footer for something should be aware. [CHAR LIMIT=NONE]  -->
     <string name="flash_notifications_note">Use flash notifications with caution if you\u0027re light sensitive</string>
     <!-- Label of the button to preview the selected Flash Notification effects. [CHAR LIMIT=20]-->

res/xml/flash_notifications_settings.xml

@@ -21,7 +21,7 @@
 
     <com.android.settingslib.widget.TopIntroPreference
         android:key="flash_notifications_intro"
-        android:title="@string/flash_notifications_intro" />
+        settings:controller="com.android.settings.accessibility.FlashNotificationsIntroPreferenceController" />
 
     <com.android.settingslib.widget.IllustrationPreference
         android:key="flash_notifications_illustration"

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

@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2023 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.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+
+/** Preference controller that controls the text content of Flash Notifications intro. */
+public class FlashNotificationsIntroPreferenceController extends BasePreferenceController {
+
+    public FlashNotificationsIntroPreferenceController(Context context,
+            String preferenceKey) {
+        super(context, preferenceKey);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return AVAILABLE;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        final int titleResource = FlashNotificationsUtil.isTorchAvailable(mContext)
+                ? R.string.flash_notifications_intro
+                : R.string.flash_notifications_intro_without_camera_flash;
+        final Preference preference = screen.findPreference(getPreferenceKey());
+        if (preference != null) {
+            preference.setTitle(titleResource);
+        }
+    }
+}