- refact to use fragments
- use AppCompatActivity so the app bar is more customizable
- switch couple more setting page to use pagedList pattern

Test: manually verified
Change-Id: I936006c07c79e43cc02640916450493a90bcfe3b
diff --git a/src/com/android/car/settings/system/AboutSettingsFragment.java b/src/com/android/car/settings/system/AboutSettingsFragment.java
new file mode 100644
index 0000000..a4976a2
--- /dev/null
+++ b/src/com/android/car/settings/system/AboutSettingsFragment.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2017 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.car.settings.system;
+
+import android.os.Build;
+import android.os.Bundle;
+
+import com.android.car.settings.common.ListSettingsFragment;
+import com.android.car.settings.common.NoDividerItemDecoration;
+import com.android.car.settings.common.SimpleTextLineItem;
+import com.android.car.settings.common.TypedPagedListAdapter;
+import com.android.car.settings.R;
+import com.android.car.view.PagedListView;
+import com.android.settingslib.DeviceInfoUtils;
+
+import java.util.ArrayList;
+
+/**
+ * Shows basic info about the system and provide some actions like update, reset etc.
+ */
+public class AboutSettingsFragment extends ListSettingsFragment {
+
+    public static AboutSettingsFragment getInstance() {
+        AboutSettingsFragment aboutSettingsFragment = new AboutSettingsFragment();
+        Bundle bundle = ListSettingsFragment.getBundle();
+        bundle.putInt(EXTRA_TITLE_ID, R.string.about_settings);
+        aboutSettingsFragment.setArguments(bundle);
+        return aboutSettingsFragment;
+    }
+
+    @Override
+    public ArrayList<TypedPagedListAdapter.LineItem> getLineItems() {
+        ArrayList<TypedPagedListAdapter.LineItem> lineItems = new ArrayList<>();
+        lineItems.add(new SimpleTextLineItem(
+                getText(R.string.model_info), Build.MODEL + DeviceInfoUtils.getMsvSuffix()));
+        lineItems.add(new SimpleTextLineItem(
+                getText(R.string.firmware_version),
+                getString(R.string.about_summary, Build.VERSION.RELEASE)));
+        lineItems.add(new SimpleTextLineItem(
+                getText(R.string.security_patch), DeviceInfoUtils.getSecurityPatch()));
+        lineItems.add(new SimpleTextLineItem(
+                getText(R.string.kernel_version), DeviceInfoUtils.getFormattedKernelVersion()));
+        lineItems.add(new SimpleTextLineItem(
+                getText(R.string.build_number), Build.DISPLAY));
+        return lineItems;
+    }
+
+    @Override
+    public PagedListView.Decoration getDecoration() {
+        return new NoDividerItemDecoration(getContext());
+    }
+}