[Audiosharing] Create preference for audio streams

This preference will optionally show a lock icon on the right.

Bug: 308368124
Test: Manual
Change-Id: Ifd899da48a499e4d963f0b8981f8d5f55070d46f

res/layout/preference_widget_lock.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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.
+-->
+
+<!-- A lock icon for preference in the audio streams page. -->
+<ImageView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/lock_icon"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_gravity="center"
+    android:paddingStart="24dp"
+    android:paddingEnd="24dp"
+    android:background="?android:attr/selectableItemBackground"
+    android:scaleType="center"
+    android:src="@drawable/ic_lock_closed"
+    android:importantForAccessibility="no" />
+

src/com/android/settings/connecteddevice/audiosharing/audiostreams/AudioStreamPreference.java

@@ -0,0 +1,55 @@
+/*
+ * 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.connecteddevice.audiosharing.audiostreams;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+import com.android.settings.R;
+import com.android.settingslib.widget.TwoTargetPreference;
+
+/**
+ * Custom preference class for managing audio stream preferences with an optional lock icon. Extends
+ * {@link TwoTargetPreference}.
+ */
+public class AudioStreamPreference extends TwoTargetPreference {
+    private boolean mShowLock = true;
+
+    /**
+     * Sets whether to display the lock icon.
+     *
+     * @param showLock Should show / hide the lock icon
+     */
+    public void setShowLock(boolean showLock) {
+        mShowLock = showLock;
+        notifyChanged();
+    }
+
+    public AudioStreamPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    protected boolean shouldHideSecondTarget() {
+        return !mShowLock;
+    }
+
+    @Override
+    protected int getSecondTargetResId() {
+        return R.layout.preference_widget_lock;
+    }
+}