[Audiosharing] Add audio sharing stream name preference.

Flagged with enable_le_audio_sharing

Bug: 305620450
Test: Manual
Change-Id: I1502fb824bcf612d069ee24d7af67afda5e997bb

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

@@ -0,0 +1,85 @@
+/*
+ * 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 androidx.annotation.NonNull;
+import androidx.lifecycle.DefaultLifecycleObserver;
+import androidx.lifecycle.LifecycleOwner;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.core.BasePreferenceController;
+import com.android.settings.flags.Flags;
+import com.android.settings.widget.ValidatedEditTextPreference;
+
+public class AudioSharingNamePreferenceController extends BasePreferenceController
+        implements ValidatedEditTextPreference.Validator,
+                Preference.OnPreferenceChangeListener,
+                DefaultLifecycleObserver {
+
+    private static final String TAG = "AudioSharingNamePreferenceController";
+
+    private static final String PREF_KEY = "audio_sharing_stream_name";
+
+    protected Preference mPreference;
+
+    private AudioSharingNameTextValidator mAudioSharingNameTextValidator;
+
+    public AudioSharingNamePreferenceController(Context context) {
+        super(context, PREF_KEY);
+        mAudioSharingNameTextValidator = new AudioSharingNameTextValidator();
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return Flags.enableLeAudioSharing() ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return PREF_KEY;
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        // TODO: update broadcast when name is changed.
+        return true;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        mPreference = screen.findPreference(getPreferenceKey());
+    }
+
+    @Override
+    public boolean isTextValid(String value) {
+        return mAudioSharingNameTextValidator.isTextValid(value);
+    }
+
+    @Override
+    public void onStart(@NonNull LifecycleOwner owner) {
+        // TODO
+    }
+
+    @Override
+    public void onStop(@NonNull LifecycleOwner owner) {
+        // TODO
+    }
+}