Merge "Use standard Activity as TunerActivity's base."

<?xml version="1.0" encoding="utf-8"?>

<!--

  Copyright (C) 2018 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.

  -->

<!-- The tuner content view -->

<LinearLayout

    android:id="@+id/content_parent"

    xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical">

    <Toolbar

        android:id="@+id/action_bar"

        style="?android:attr/actionBarStyle"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:theme="?android:attr/actionBarTheme"

        android:navigationContentDescription="@*android:string/action_bar_up_description" />

    <FrameLayout

        android:id="@+id/content_frame"

        android:layout_width="match_parent"

        android:layout_height="fill_parent"

        android:background="?android:attr/windowBackground" />

</LinearLayout>

 No newline at end of file

 */

package com.android.systemui.tuner;

import android.app.Activity;

import android.app.Fragment;

import android.app.FragmentTransaction;

import android.os.Bundle;

import androidx.preference.PreferenceFragment;

import androidx.preference.Preference;

import androidx.preference.PreferenceScreen;

import android.util.Log;

import android.view.MenuItem;

import android.view.Window;

import android.view.WindowManager;

import android.widget.Toolbar;

import androidx.preference.Preference;

import androidx.preference.PreferenceFragment;

import androidx.preference.PreferenceScreen;

import com.android.settingslib.drawer.SettingsDrawerActivity;

import com.android.systemui.Dependency;

import com.android.systemui.R;

import com.android.systemui.fragments.FragmentService;

public class TunerActivity extends SettingsDrawerActivity implements

public class TunerActivity extends Activity implements

        PreferenceFragment.OnPreferenceStartFragmentCallback,

        PreferenceFragment.OnPreferenceStartScreenCallback {

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);

        requestWindowFeature(Window.FEATURE_NO_TITLE);

        setContentView(R.layout.tuner_activity);

        Toolbar toolbar = findViewById(R.id.action_bar);

        if (toolbar != null) {

            setActionBar(toolbar);

        }

        Dependency.initDependencies(this);

        if (getFragmentManager().findFragmentByTag(TAG_TUNER) == null) {