Add media on lock screen setting

Add a new setting that controls whether media on lock screen is enabled,
disregarding the notifications status. The new setting is available
under media and privacy settings.

Bug: 229915240
Test: atest MediaControlsLockScreenPreferenceControllerTest
Change-Id: I054f36efd635dc0535551d3058f9faf92196349d

src/com/android/settings/sound/MediaControlsLockScreenPreferenceController.java

@@ -0,0 +1,58 @@
+/*
+ * 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.sound;
+
+import static android.provider.Settings.Secure.MEDIA_CONTROLS_LOCK_SCREEN;
+
+import android.content.Context;
+import android.provider.Settings;
+
+import com.android.settings.R;
+import com.android.settings.core.TogglePreferenceController;
+
+/**
+ * Toggle for media control resumption on lock screen.
+ */
+public class MediaControlsLockScreenPreferenceController extends TogglePreferenceController {
+    public MediaControlsLockScreenPreferenceController(Context context, String key) {
+        super(context, key);
+    }
+
+    @Override
+    public boolean isChecked() {
+        int val = Settings.Secure.getInt(mContext.getContentResolver(),
+                MEDIA_CONTROLS_LOCK_SCREEN, 1);
+        return val == 1;
+    }
+
+    @Override
+    public boolean setChecked(boolean isChecked) {
+        int val = isChecked ? 1 : 0;
+        return Settings.Secure.putInt(mContext.getContentResolver(),
+                MEDIA_CONTROLS_LOCK_SCREEN, val);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return AVAILABLE;
+    }
+
+    @Override
+    public int getSliceHighlightMenuRes() {
+        return R.string.menu_key_sound;
+    }
+}