Create ProfileSelector to provide TabLayout with Material Next style

- Create ProfileSelectFragment
- Move Tabs related resource into ProfileSelector

Bug: 195009187
Test: visual test & robotest
Change-Id: Ica20a6e1e7e534c35cb3ac3ed2d69f3cb9682fb7

packages/SettingsLib/Android.bp

@@ -54,6 +54,7 @@ android_library {
         "SettingsLibSettingsTransition",
         "SettingsLibButtonPreference",
         "SettingsLibDeviceStateRotationLock",
+        "SettingsLibProfileSelector",
         "setupdesign",
         "zxing-core-1.7",
         "androidx.room_room-runtime",

packages/SettingsLib/ProfileSelector/Android.bp

@@ -0,0 +1,26 @@
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_base_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_base_license"],
+}
+
+android_library {
+    name: "SettingsLibProfileSelector",
+
+    srcs: ["src/**/*.java"],
+    resource_dirs: ["res"],
+
+    static_libs: [
+        "com.google.android.material_material",
+        "SettingsLibSettingsTheme",
+    ],
+
+    sdk_version: "system_current",
+    min_sdk_version: "23",
+    apex_available: [
+        "//apex_available:platform",
+    ],
+}

packages/SettingsLib/ProfileSelector/AndroidManifest.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2020 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.
+  -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.android.settingslib.widget">
+
+    <uses-sdk android:minSdkVersion="23" />
+</manifest>

packages/SettingsLib/ProfileSelector/res/layout/tab_fragment.xml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  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.
+  -->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:theme="@style/Theme.MaterialComponents.DayNight"
+    android:id="@+id/tab_container"
+    android:clipToPadding="true"
+    android:clipChildren="true"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <com.google.android.material.tabs.TabLayout
+        android:id="@+id/tabs"
+        style="@style/SettingsLibTabsStyle"/>
+
+    <androidx.viewpager2.widget.ViewPager2
+        android:id="@+id/view_pager"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+    </androidx.viewpager2.widget.ViewPager2>
+</LinearLayout>

packages/SettingsLib/ProfileSelector/res/values/strings.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  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.
+  -->
+
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Header for items under the personal user [CHAR LIMIT=30] -->
+    <string name="settingslib_category_personal">Personal</string>
+    <!-- Header for items under the work user [CHAR LIMIT=30] -->
+    <string name="settingslib_category_work">Work</string>
+</resources>

packages/SettingsLib/ProfileSelector/src/com/android/settingslib/widget/ProfileSelectFragment.java

@@ -0,0 +1,118 @@
+/*
+ * 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.settingslib.widget;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.fragment.app.Fragment;
+import androidx.viewpager2.widget.ViewPager2;
+
+import com.google.android.material.tabs.TabLayout;
+import com.google.android.material.tabs.TabLayoutMediator;
+
+/**
+ * Base fragment class for profile settings.
+ */
+public abstract class ProfileSelectFragment extends Fragment {
+
+    /**
+     * Personal or Work profile tab of {@link ProfileSelectFragment}
+     * <p>0: Personal tab.
+     * <p>1: Work profile tab.
+     */
+    public static final String EXTRA_SHOW_FRAGMENT_TAB =
+            ":settings:show_fragment_tab";
+
+    /**
+     * Used in fragment argument with Extra key EXTRA_SHOW_FRAGMENT_TAB
+     */
+    public static final int PERSONAL_TAB = 0;
+
+    /**
+     * Used in fragment argument with Extra key EXTRA_SHOW_FRAGMENT_TAB
+     */
+    public static final int WORK_TAB = 1;
+
+    private ViewGroup mContentView;
+
+    private ViewPager2 mViewPager;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        // Defines the xml file for the fragment
+        mContentView = (ViewGroup) inflater.inflate(R.layout.tab_fragment, container, false);
+
+        final Activity activity = getActivity();
+        final int titleResId = getTitleResId();
+        if (titleResId > 0) {
+            activity.setTitle(titleResId);
+        }
+        final int selectedTab = getTabId(activity, getArguments());
+
+        final View tabContainer = mContentView.findViewById(R.id.tab_container);
+        mViewPager = tabContainer.findViewById(R.id.view_pager);
+        mViewPager.setAdapter(new ProfileViewPagerAdapter(this));
+        final TabLayout tabs = tabContainer.findViewById(R.id.tabs);
+        new TabLayoutMediator(tabs, mViewPager,
+                (tab, position) -> tab.setText(getPageTitle(position))
+        ).attach();
+
+        tabContainer.setVisibility(View.VISIBLE);
+        final TabLayout.Tab tab = tabs.getTabAt(selectedTab);
+        tab.select();
+
+        return mContentView;
+    }
+
+    /**
+     * create Personal or Work profile fragment
+     * <p>0: Personal profile.
+     * <p>1: Work profile.
+     */
+    public abstract Fragment createFragment(int position);
+
+    /**
+     * Returns a resource ID of the title
+     * Override this if the title needs to be updated dynamically.
+     */
+    public int getTitleResId() {
+        return 0;
+    }
+
+    int getTabId(Activity activity, Bundle bundle) {
+        if (bundle != null) {
+            final int extraTab = bundle.getInt(EXTRA_SHOW_FRAGMENT_TAB, -1);
+            if (extraTab != -1) {
+                return extraTab;
+            }
+        }
+        return PERSONAL_TAB;
+    }
+
+    private CharSequence getPageTitle(int position) {
+        if (position == WORK_TAB) {
+            return getContext().getString(R.string.settingslib_category_work);
+        }
+
+        return getString(R.string.settingslib_category_personal);
+    }
+}

packages/SettingsLib/ProfileSelector/src/com/android/settingslib/widget/ProfileViewPagerAdapter.java

@@ -0,0 +1,43 @@
+/*
+ * 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.settingslib.widget;
+
+import androidx.fragment.app.Fragment;
+import androidx.viewpager2.adapter.FragmentStateAdapter;
+
+/**
+ * ViewPager Adapter to handle between TabLayout and ViewPager2
+ */
+public class ProfileViewPagerAdapter extends FragmentStateAdapter {
+
+    private final ProfileSelectFragment mParentFragments;
+
+    ProfileViewPagerAdapter(ProfileSelectFragment fragment) {
+        super(fragment);
+        mParentFragments = fragment;
+    }
+
+    @Override
+    public Fragment createFragment(int position) {
+        return mParentFragments.createFragment(position);
+    }
+
+    @Override
+    public int getItemCount() {
+        return 2;
+    }
+}