[Le Audio] Move BT QR code scanner from Settingslibs to Settings

Systemui memory regression, so we have to move the qr code activity back to Settings

Bug: 228031398
Test: manual
Change-Id: Ic30291e6d752c6c770c40e1329d9f95ceec8cca6

src/com/android/settings/bluetooth/QrCodeScanModeBaseActivity.java

@@ -0,0 +1,46 @@
+/**
+ * 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.bluetooth;
+
+import android.content.Intent;
+import android.os.Bundle;
+
+import androidx.fragment.app.FragmentManager;
+
+import com.android.settingslib.R;
+import com.android.settingslib.core.lifecycle.ObservableActivity;
+
+public abstract class QrCodeScanModeBaseActivity extends ObservableActivity {
+
+    protected FragmentManager mFragmentManager;
+
+    protected abstract void handleIntent(Intent intent);
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setTheme(R.style.SudThemeGlifV3_DayNight);
+
+        setContentView(R.layout.qrcode_scan_mode_activity);
+        mFragmentManager = getSupportFragmentManager();
+
+        if (savedInstanceState == null) {
+            handleIntent(getIntent());
+        }
+    }
+}