[4.2] [QuickSettings] How to add new toggles to 4.2 Android

        // CpuInfo tile
        QuickSettingsTileView cpuInfoTile = (QuickSettingsTileView)
                inflater.inflate(R.layout.quick_settings_tile, parent, false);
        cpuInfoTile.setContent(R.layout.quick_settings_tile_cpuinfo, inflater);
        cpuInfoTile.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startSettingsActivity(Intent.ACTION_POWER_USAGE_SUMMARY);
            }
        });
        mModel.addCpuInfoTile(cpuInfoTile, new QuickSettingsModel.RefreshCallback() {
            @Override
            public void refreshView(QuickSettingsTileView view, State state) {
                ImageView iv = (ImageView) view.findViewById(R.id.cpuinfo_image);
                TextView tva = (TextView) view.findViewById(R.id.cpuinfoa_textview);
                TextView tvb = (TextView) view.findViewById(R.id.cpuinfob_textview);
                Drawable d = mContext.getResources().getDrawable(R.drawable.ic_settings_performance);
		String GOV = fileReadOneLine(GOV_FILE);
		String FREQ = fileReadOneLine(SCALE_CUR_FILE);
                iv.setImageDrawable(d);
                tva.setText(GOV);
                tvb.setText(FREQ);
                view.setContentDescription(
                        mContext.getString(R.string.accessibility_quick_settings_cpuinfo, GOV));
            }
        });
        parent.addView(cpuInfoTile);

    private QuickSettingsTileView mCpuInfoTile;
    private RefreshCallback mCpuInfoCallback;
    private State mCpuInfoState = new State();

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2012 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:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:orientation="vertical">
    <ImageView
        android:id="@+id/cpuinfo_image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:paddingBottom="10dp"
        />
    <TextView
        style="@style/TextAppearance.QuickSettings.TileView"
        android:id="@+id/cpuinfoa_textview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:textColor="#287AA9"
        android:gravity="center"
        />
    <TextView
        style="@style/TextAppearance.QuickSettings.TileView"
        android:id="@+id/cpuinfob_textview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:textColor="#287AA9"
        android:gravity="center"
        />
</LinearLayout>

    <string name="accessibility_quick_settings_cpuinfo">CpuInfo <xliff:g id="meminfo" example="CpuInfo">%s</xliff:g>.</string>