[Catalyst] Bluetooth screen migration

- Add a flag for the migration
- Add the skeleton of the screen

Test: atest BluetoothDashboardScreenTest
Bug: 372774767
Flag: com.android.settings.flags.catalyst_bluetooth_switchbar_screen
Change-Id: I48e446532d3e839ae55880095a496e3ac4790c81

aconfig/catalyst/connected_devices.aconfig

@@ -0,0 +1,9 @@
+package: "com.android.settings.flags"
+container: "system"
+
+flag {
+  name: "catalyst_bluetooth_switchbar_screen"
+  namespace: "android_settings"
+  description: "Flag for Bluetooth"
+  bug: "323791114"
+}

src/com/android/settings/connecteddevice/BluetoothDashboardFragment.java

@@ -21,6 +21,8 @@ import android.os.Bundle;
 import android.text.TextUtils;
 import android.util.Log;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.annotation.VisibleForTesting;
 
 import com.android.settings.R;
@@ -120,4 +122,9 @@ public class BluetoothDashboardFragment extends DashboardFragment {
      */
     public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
             new BaseSearchIndexProvider(R.xml.bluetooth_screen);
+
+    @Override
+    public @Nullable String getPreferenceScreenBindingKey(@NonNull Context context) {
+        return BluetoothDashboardScreen.KEY;
+    }
 }

src/com/android/settings/connecteddevice/BluetoothDashboardScreen.kt

@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2024 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
+
+import android.content.Context
+import com.android.settings.R
+import com.android.settings.flags.Flags
+import com.android.settingslib.metadata.ProvidePreferenceScreen
+import com.android.settingslib.metadata.preferenceHierarchy
+import com.android.settingslib.preference.PreferenceScreenCreator
+
+@ProvidePreferenceScreen
+class BluetoothDashboardScreen : PreferenceScreenCreator {
+    override val key: String
+        get() = KEY
+
+    override val title: Int
+        get() = R.string.bluetooth_settings_title
+
+    override val icon: Int
+        get() = R.drawable.ic_settings_bluetooth
+
+    override fun isFlagEnabled(context: Context) = Flags.catalystBluetoothSwitchbarScreen()
+
+    override fun hasCompleteHierarchy() = false
+
+    override fun fragmentClass() = BluetoothDashboardFragment::class.java
+
+    override fun getPreferenceHierarchy(context: Context) = preferenceHierarchy(this) {}
+
+    companion object {
+        const val KEY = "bluetooth_switchbar_screen"
+    }
+}

tests/robotests/src/com/android/settings/connecteddevice/BluetoothDashboardScreenTest.kt

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2024 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
+
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.android.settings.flags.Flags
+import com.android.settingslib.preference.CatalystScreenTestCase
+import com.google.common.truth.Truth.assertThat
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class BluetoothDashboardScreenTest : CatalystScreenTestCase() {
+    override val preferenceScreenCreator = BluetoothDashboardScreen()
+
+    override val flagName: String
+        get() = Flags.FLAG_CATALYST_BLUETOOTH_SWITCHBAR_SCREEN
+
+    @Test
+    fun key() {
+        assertThat(preferenceScreenCreator.key).isEqualTo(BluetoothDashboardScreen.KEY)
+    }
+
+    override fun migration() {
+    }
+}