[Audiosharing] Add audio sharing settings with the main switch.

Flagged with enable_le_audio_sharing

Bug: 305620450
Test: Manual
Change-Id: I9ca520014d3f6f7147bb9b8e7648797e79b46f53

src/com/android/settings/connecteddevice/audiosharing/AudioSharingSwitchBarController.java

@@ -0,0 +1,66 @@
+/*
+ * 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;
+
+import android.content.Context;
+import android.widget.Switch;
+
+import androidx.annotation.NonNull;
+import androidx.lifecycle.DefaultLifecycleObserver;
+import androidx.lifecycle.LifecycleOwner;
+
+import com.android.settings.widget.SettingsMainSwitchBar;
+import com.android.settingslib.widget.OnMainSwitchChangeListener;
+
+public class AudioSharingSwitchBarController
+        implements DefaultLifecycleObserver, OnMainSwitchChangeListener {
+
+    private static final String TAG = "AudioSharingSwitchBarCtl";
+
+    private final Context mContext;
+    private final SettingsMainSwitchBar mSwitchBar;
+    private final Switch mSwitch;
+
+    AudioSharingSwitchBarController(Context context, SettingsMainSwitchBar switchBar) {
+        mContext = context;
+        mSwitchBar = switchBar;
+        mSwitch = mSwitchBar.getSwitch();
+        mSwitch.setChecked(false);
+    }
+
+    @Override
+    public void onStart(@NonNull LifecycleOwner owner) {
+        mSwitchBar.addOnSwitchChangeListener(this);
+    }
+
+    @Override
+    public void onStop(@NonNull LifecycleOwner owner) {
+        mSwitchBar.removeOnSwitchChangeListener(this);
+    }
+
+    @Override
+    public void onSwitchChanged(Switch switchView, boolean isChecked) {
+        // Filter out unnecessary callbacks when switch is disabled.
+        if (!switchView.isEnabled()) return;
+
+        if (isChecked) {
+            // TODO: start sharing
+        } else {
+            // TODO: stop sharing
+        }
+    }
+}