[2/2] Settings: Privacy Guard

PS2: * add ic_privacy_guard*.png from frameworks/base
     * rebase

PS3: * enable AppOpsSummaryActivity
     * use SubSettings on longclick

PS4: * move privacyguard settings category to just
       below security

PS5: * rebase

Pulled together mostly (if not all) from:

Author: Steve Kondik <shade@chemlab.org>
Date:   Tue Feb 25 14:02:16 2014 +0100
settings: Relocate Privacy Guard icons to framework
* So we can use them in the permission dialog for MODE_ASK
Change-Id: Ia9bac7dff0bbe91ae48db5d4b0d8f46feb9fdf86

Author: DvTonder <david.vantonder@gmail.com>
Date:   Thu Jan 16 19:01:23 2014 -0500
Settings: Fix up top level "Privacy" section
Change-Id: Id4dbda10a891c793bc6eb3c42807cc0e3f6092cc

Author: Danny Baumann <dannybaumann@web.de>
Date:   Fri Nov 8 13:37:07 2013 +0100
Add back privacy guard manager.
Change-Id: Ic9fbbae137bb8425fe72a6cdb2f17117351b5709

Author: Chirayu Desai <cdesai@cyanogenmod.org>
Date:   Sat Dec 28 18:51:46 2013 +0530
PrivacyGuard: Specify a default value in Settings.getInt method call
* While privacy guard is enabled by default, the default value specified
  here is returned only when the setting is not defined or not an integer.
Change-Id: Iaedffcc76a23a310aa7915f6a42ccce83ba5d2a6

Author: Matt Mower <mowerm@gmail.com>
Date:   Wed Feb 5 19:40:37 2014 -0600
PrivacyGuard: confirm permissions reset
The button to reset all application permissions to enabled looks
suspiciously like a refresh button. Prompt the user with a confirmation
dialog to make sure they know what they've pressed.
Change-Id: I0444c5bf8e9533feccf890055d34d3200609c6f6

Change-Id: I2e10cb4d395e2e7e5141d2fadada9e9b21cd7fbf

3 files changed, 697 insertions, 0 deletions

diff --git a/src/com/android/settings/privacyguard/PrivacyGuardAppListAdapter.java b/src/com/android/settings/privacyguard/PrivacyGuardAppListAdapter.java
new file mode 100644
index 0000000..49555a9
--- /dev/null
+++ b/src/com/android/settings/privacyguard/PrivacyGuardAppListAdapter.java
@@ -0,0 +1,185 @@
+/*
+ * Copyright (C) 2013 SlimRoms 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.privacyguard;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.graphics.drawable.Drawable;
+import android.os.AsyncTask;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.ImageView;
+import android.widget.SectionIndexer;
+import android.widget.TextView;
+
+import com.android.settings.R;
+import com.android.settings.privacyguard.PrivacyGuardManager.AppInfo;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.concurrent.ConcurrentHashMap;
+
+public class PrivacyGuardAppListAdapter extends BaseAdapter implements SectionIndexer {
+
+    private LayoutInflater mInflater;
+    private PackageManager mPm;
+
+    private List<AppInfo> mApps;
+    private String[] mSections;
+    private int[] mPositions;
+    private ConcurrentHashMap<String, Drawable> mIcons;
+    private Drawable mDefaultImg;
+
+    private Context mContext;
+
+    //constructor
+    public PrivacyGuardAppListAdapter(Context context, List<AppInfo> apps,
+            List<String> sections, List<Integer> positions) {
+        mContext = context;
+        mInflater = LayoutInflater.from(mContext);
+        mPm = context.getPackageManager();
+
+        mApps = apps;
+        mSections = sections.toArray(new String[sections.size()]);
+        mPositions = new int[positions.size()];
+        for (int i = 0; i < positions.size(); i++) {
+            mPositions[i] = positions.get(i);
+        }
+
+        // set the default icon till the actual app icon is loaded in async task
+        mDefaultImg = mContext.getResources().getDrawable(android.R.mipmap.sym_def_app_icon);
+        mIcons = new ConcurrentHashMap<String, Drawable>();
+
+        new LoadIconsTask().execute(apps.toArray(new PrivacyGuardManager.AppInfo[]{}));
+    }
+
+    @Override
+    public int getCount() {
+        return mApps.size();
+    }
+
+    @Override
+    public Object getItem(int position) {
+        return mApps.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return position;
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        PrivacyGuardAppViewHolder appHolder;
+
+        if (convertView == null) {
+            convertView = mInflater.inflate(R.layout.privacy_guard_manager_list_row, null);
+
+            // creates a ViewHolder and children references
+            appHolder = new PrivacyGuardAppViewHolder();
+            appHolder.title = (TextView) convertView.findViewById(R.id.app_title);
+            appHolder.icon = (ImageView) convertView.findViewById(R.id.app_icon);
+            appHolder.privacyGuardIcon = (ImageView) convertView.findViewById(R.id.app_privacy_guard_icon);
+            convertView.setTag(appHolder);
+        } else {
+            appHolder = (PrivacyGuardAppViewHolder) convertView.getTag();
+        }
+
+        PrivacyGuardManager.AppInfo app = mApps.get(position);
+
+        appHolder.title.setText(app.title);
+
+        Drawable icon = mIcons.get(app.packageName);
+        appHolder.icon.setImageDrawable(icon != null ? icon : mDefaultImg);
+
+        int privacyGuardDrawableResId = app.privacyGuardEnabled
+                ? R.drawable.ic_privacy_guard :
+                  R.drawable.ic_privacy_guard_off;
+        appHolder.privacyGuardIcon.setImageResource(privacyGuardDrawableResId);
+
+        return convertView;
+    }
+
+    @Override
+    public int getPositionForSection(int section) {
+        if (section < 0 || section >= mSections.length) {
+            return -1;
+        }
+
+        return mPositions[section];
+    }
+
+    @Override
+    public int getSectionForPosition(int position) {
+        if (position < 0 || position >= getCount()) {
+            return -1;
+        }
+
+        int index = Arrays.binarySearch(mPositions, position);
+
+        /*
+         * Consider this example: section positions are 0, 3, 5; the supplied
+         * position is 4. The section corresponding to position 4 starts at
+         * position 3, so the expected return value is 1. Binary search will not
+         * find 4 in the array and thus will return -insertPosition-1, i.e. -3.
+         * To get from that number to the expected value of 1 we need to negate
+         * and subtract 2.
+         */
+        return index >= 0 ? index : -index - 2;
+    }
+
+    @Override
+    public Object[] getSections() {
+        return mSections;
+    }
+
+    /**
+     * An asynchronous task to load the icons of the installed applications.
+     */
+    private class LoadIconsTask extends AsyncTask<PrivacyGuardManager.AppInfo, Void, Void> {
+        @Override
+        protected Void doInBackground(PrivacyGuardManager.AppInfo... apps) {
+            for (PrivacyGuardManager.AppInfo app : apps) {
+                try {
+                    Drawable icon = mPm.getApplicationIcon(app.packageName);
+                    mIcons.put(app.packageName, icon);
+                    publishProgress();
+                } catch (PackageManager.NameNotFoundException e) {
+                    // ignored; app will show up with default image
+                }
+            }
+
+            return null;
+        }
+
+        @Override
+        protected void onProgressUpdate(Void... progress) {
+            notifyDataSetChanged();
+        }
+    }
+
+    /**
+     * App view holder used to reuse the views inside the list.
+     */
+    public static class PrivacyGuardAppViewHolder {
+        TextView title;
+        ImageView icon;
+        ImageView privacyGuardIcon;
+    }
+}
diff --git a/src/com/android/settings/privacyguard/PrivacyGuardManager.java b/src/com/android/settings/privacyguard/PrivacyGuardManager.java
new file mode 100644
index 0000000..9fb8c9d
--- /dev/null
+++ b/src/com/android/settings/privacyguard/PrivacyGuardManager.java
@@ -0,0 +1,423 @@
+/*
+ * Copyright (C) 2013 SlimRoms 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.privacyguard;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.AppOpsManager;
+import android.app.Dialog;
+import android.app.DialogFragment;
+import android.app.Fragment;
+import android.app.FragmentManager;
+import android.content.ActivityNotFoundException;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.Signature;
+import android.content.SharedPreferences;
+import android.net.Uri;
+import android.os.Bundle;
+import android.preference.PreferenceManager;
+import android.text.TextUtils;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.AdapterView.OnItemClickListener;
+import android.widget.AdapterView.OnItemLongClickListener;
+import android.widget.ListView;
+import android.widget.TextView;
+
+import com.android.settings.R;
+import com.android.settings.Settings.AppOpsSummaryActivity;
+import com.android.settings.SubSettings;
+import com.android.settings.applications.AppOpsDetails;
+import com.android.settings.applications.AppOpsState;
+import com.android.settings.applications.AppOpsState.OpsTemplate;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+
+public class PrivacyGuardManager extends Fragment
+        implements OnItemClickListener, OnItemLongClickListener {
+
+    private static final String TAG = "PrivacyGuardManager";
+
+    private TextView mNoUserAppsInstalled;
+    private ListView mAppsList;
+    private PrivacyGuardAppListAdapter mAdapter;
+    private List<AppInfo> mApps;
+
+    private PackageManager mPm;
+    private Activity mActivity;
+
+    private SharedPreferences mPreferences;
+    private AppOpsManager mAppOps;
+
+    private int mSavedFirstVisiblePosition = AdapterView.INVALID_POSITION;
+    private int mSavedFirstItemOffset;
+
+    // keys for extras and icicles
+    private final static String LAST_LIST_POS = "last_list_pos";
+    private final static String LAST_LIST_OFFSET = "last_list_offset";
+
+    // holder for package data passed into the adapter
+    public static final class AppInfo {
+        String title;
+        String packageName;
+        boolean enabled;
+        boolean privacyGuardEnabled;
+        int uid;
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+
+        mActivity = getActivity();
+        mPm = mActivity.getPackageManager();
+        mAppOps = (AppOpsManager)getActivity().getSystemService(Context.APP_OPS_SERVICE);
+
+        return inflater.inflate(R.layout.privacy_guard_manager, container, false);
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        FragmentManager fm = getFragmentManager();
+        Fragment f = fm.findFragmentById(R.id.privacy_guard_prefs);
+        if (f != null && !fm.isDestroyed()) {
+            fm.beginTransaction().remove(f).commit();
+        }
+    }
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+
+        mNoUserAppsInstalled = (TextView) mActivity.findViewById(R.id.error);
+
+        mAppsList = (ListView) mActivity.findViewById(R.id.apps_list);
+        mAppsList.setOnItemClickListener(this);
+        mAppsList.setOnItemLongClickListener(this);
+
+        // get shared preference
+        mPreferences = mActivity.getSharedPreferences("privacy_guard_manager", Activity.MODE_PRIVATE);
+        if (!mPreferences.getBoolean("first_help_shown", false)) {
+            showHelp();
+        }
+
+        if (savedInstanceState != null) {
+            mSavedFirstVisiblePosition = savedInstanceState.getInt(LAST_LIST_POS,
+                    AdapterView.INVALID_POSITION);
+            mSavedFirstItemOffset = savedInstanceState.getInt(LAST_LIST_OFFSET, 0);
+        } else {
+            mSavedFirstVisiblePosition = AdapterView.INVALID_POSITION;
+            mSavedFirstItemOffset = 0;
+        }
+
+        // load apps and construct the list
+        loadApps();
+
+        setHasOptionsMenu(true);
+    }
+
+    @Override
+    public void onViewStateRestored(Bundle savedInstanceState) {
+        super.onViewStateRestored(savedInstanceState);
+    }
+
+    @Override
+    public void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+
+        outState.putInt(LAST_LIST_POS, mSavedFirstVisiblePosition);
+        outState.putInt(LAST_LIST_OFFSET, mSavedFirstItemOffset);
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+
+        // Remember where the list is scrolled to so we can restore the scroll position
+        // when we come back to this activity and *after* we complete querying for the
+        // conversations.
+        mSavedFirstVisiblePosition = mAppsList.getFirstVisiblePosition();
+        View firstChild = mAppsList.getChildAt(0);
+        mSavedFirstItemOffset = (firstChild == null) ? 0 : firstChild.getTop();
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+
+        // rebuild the list; the user might have changed settings inbetween
+        loadApps();
+
+        if (mSavedFirstVisiblePosition != AdapterView.INVALID_POSITION) {
+            mAppsList.setSelectionFromTop(mSavedFirstVisiblePosition, mSavedFirstItemOffset);
+            mSavedFirstVisiblePosition = AdapterView.INVALID_POSITION;
+        }
+    }
+
+    private void loadApps() {
+        mApps = loadInstalledApps();
+
+        // if app list is empty inform the user
+        // else go ahead and construct the list
+        if (mApps == null || mApps.isEmpty()) {
+            mNoUserAppsInstalled.setText(R.string.privacy_guard_no_user_apps);
+            mNoUserAppsInstalled.setVisibility(View.VISIBLE);
+            mAppsList.setVisibility(View.GONE);
+            mAppsList.setAdapter(null);
+        } else {
+            mNoUserAppsInstalled.setVisibility(View.GONE);
+            mAppsList.setVisibility(View.VISIBLE);
+            mAdapter = createAdapter();
+            mAppsList.setAdapter(mAdapter);
+            mAppsList.setFastScrollEnabled(true);
+        }
+    }
+
+    private PrivacyGuardAppListAdapter createAdapter() {
+        String lastSectionIndex = null;
+        ArrayList<String> sections = new ArrayList<String>();
+        ArrayList<Integer> positions = new ArrayList<Integer>();
+        int count = mApps.size(), offset = 0;
+
+        for (int i = 0; i < count; i++) {
+            AppInfo app = mApps.get(i);
+            String sectionIndex;
+
+            if (!app.enabled) {
+                sectionIndex = "--"; //XXX
+            } else if (app.title.isEmpty()) {
+                sectionIndex = "";
+            } else {
+                sectionIndex = app.title.substring(0, 1).toUpperCase();
+            }
+            if (lastSectionIndex == null) {
+                lastSectionIndex = sectionIndex;
+            }
+
+            if (!TextUtils.equals(sectionIndex, lastSectionIndex)) {
+                sections.add(sectionIndex);
+                positions.add(offset);
+                lastSectionIndex = sectionIndex;
+            }
+            offset++;
+        }
+
+        return new PrivacyGuardAppListAdapter(mActivity, mApps, sections, positions);
+    }
+
+    private void resetPrivacyGuard() {
+        if (mApps == null || mApps.isEmpty()) {
+            return;
+        }
+        showResetDialog();
+    }
+
+    @Override
+    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+        // on click change the privacy guard status for this item
+        final AppInfo app = (AppInfo) parent.getItemAtPosition(position);
+
+        app.privacyGuardEnabled = !app.privacyGuardEnabled;
+        mAppOps.setPrivacyGuardSettingForPackage(app.uid, app.packageName, app.privacyGuardEnabled);
+
+        mAdapter.notifyDataSetChanged();
+    }
+
+    @Override
+    public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
+        // on long click open app details window
+        final AppInfo app = (AppInfo) parent.getItemAtPosition(position);
+
+        Bundle args = new Bundle();
+        args.putString(AppOpsDetails.ARG_PACKAGE_NAME, app.packageName);
+
+        SubSettings ssa = (SubSettings) getActivity();
+        ssa.startPreferencePanel(AppOpsDetails.class.getName(), args,
+                R.string.app_ops_settings, null, this, 2);
+        return true;
+    }
+
+    /**
+    * Uses the package manager to query for all currently installed apps
+    * for the list.
+    *
+    * @return the complete List off installed applications (@code PrivacyGuardAppInfo)
+    */
+    private List<AppInfo> loadInstalledApps() {
+        List<AppInfo> apps = new ArrayList<AppInfo>();
+        List<PackageInfo> packages = mPm.getInstalledPackages(
+            PackageManager.GET_PERMISSIONS | PackageManager.GET_SIGNATURES);
+        boolean showSystemApps = shouldShowSystemApps();
+        Signature platformCert;
+
+        try {
+            PackageInfo sysInfo = mPm.getPackageInfo("android", PackageManager.GET_SIGNATURES);
+            platformCert = sysInfo.signatures[0];
+        } catch (PackageManager.NameNotFoundException e) {
+            platformCert = null;
+        }
+
+        for (PackageInfo info : packages) {
+            final ApplicationInfo appInfo = info.applicationInfo;
+
+            // hide apps signed with the platform certificate to avoid the user
+            // shooting himself in the foot
+            if (platformCert != null && info.signatures != null
+                    && platformCert.equals(info.signatures[0])) {
+                continue;
+            }
+
+            // skip all system apps if they shall not be included
+            if (!showSystemApps && (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
+                continue;
+            }
+
+            AppInfo app = new AppInfo();
+            app.title = appInfo.loadLabel(mPm).toString();
+            app.packageName = info.packageName;
+            app.enabled = appInfo.enabled;
+            app.uid = info.applicationInfo.uid;
+            app.privacyGuardEnabled = mAppOps.getPrivacyGuardSettingForPackage(
+                    app.uid, app.packageName);
+            apps.add(app);
+        }
+
+        // sort the apps by their enabled state, then by title
+        Collections.sort(apps, new Comparator<AppInfo>() {
+            @Override
+            public int compare(AppInfo lhs, AppInfo rhs) {
+                if (lhs.enabled != rhs.enabled) {
+                    return lhs.enabled ? -1 : 1;
+                }
+                return lhs.title.compareToIgnoreCase(rhs.title);
+            }
+        });
+
+        return apps;
+    }
+
+    private boolean shouldShowSystemApps() {
+        return mPreferences.getBoolean("show_system_apps", false);
+    }
+
+    private class HelpDialogFragment extends DialogFragment {
+        @Override
+        public Dialog onCreateDialog(Bundle savedInstanceState) {
+            return new AlertDialog.Builder(getActivity())
+                    .setTitle(R.string.privacy_guard_help_title)
+                    .setMessage(R.string.privacy_guard_help_text)
+                    .setNegativeButton(R.string.dlg_ok, new DialogInterface.OnClickListener() {
+                        @Override
+                        public void onClick(DialogInterface dialog, int which) {
+                            dialog.cancel();
+                        }
+                    })
+                    .create();
+        }
+
+        @Override
+        public void onCancel(DialogInterface dialog) {
+            mPreferences.edit().putBoolean("first_help_shown", true).commit();
+        }
+    }
+
+    private void showHelp() {
+        HelpDialogFragment fragment = new HelpDialogFragment();
+        fragment.show(getFragmentManager(), "help_dialog");
+    }
+
+    private class ResetDialogFragment extends DialogFragment {
+        @Override
+        public Dialog onCreateDialog(Bundle savedInstanceState) {
+            return new AlertDialog.Builder(getActivity())
+                    .setTitle(R.string.privacy_guard_reset_title)
+                    .setMessage(R.string.privacy_guard_reset_text)
+                    .setPositiveButton(R.string.dlg_ok,
+                        new DialogInterface.OnClickListener() {
+                            public void onClick(DialogInterface dialog, int which) {
+                                // turn off privacy guard for all apps shown in the current list
+                                for (AppInfo app : mApps) {
+                                    app.privacyGuardEnabled = false;
+                                }
+                                mAppOps.resetAllModes();
+                                mAdapter.notifyDataSetChanged();
+                        }
+                    })
+                    .setNegativeButton(R.string.cancel,
+                        new DialogInterface.OnClickListener() {
+                            public void onClick(DialogInterface dialog, int which) {
+                                // Do nothing
+                        }
+                    })
+                    .create();
+        }
+    }
+
+    private void showResetDialog() {
+        ResetDialogFragment dialog = new ResetDialogFragment();
+        dialog.show(getFragmentManager(), "reset_dialog");
+    }
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        super.onCreateOptionsMenu(menu, inflater);
+        inflater.inflate(R.menu.privacy_guard_manager, menu);
+        menu.findItem(R.id.show_system_apps).setChecked(shouldShowSystemApps());
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.help:
+                showHelp();
+                return true;
+            case R.id.reset:
+                resetPrivacyGuard();
+                return true;
+            case R.id.show_system_apps:
+                final String prefName = "show_system_apps";
+                // set the menu checkbox and save it in
+                // shared preference and rebuild the list
+                item.setChecked(!item.isChecked());
+                mPreferences.edit().putBoolean(prefName, item.isChecked()).commit();
+                loadApps();
+                return true;
+            case R.id.advanced:
+                Intent i = new Intent(Intent.ACTION_MAIN);
+                i.setClass(mActivity, AppOpsSummaryActivity.class);
+                mActivity.startActivity(i);
+                return true;
+            default:
+                return super.onContextItemSelected(item);
+        }
+    }
+}
diff --git a/src/com/android/settings/privacyguard/PrivacyGuardPrefs.java b/src/com/android/settings/privacyguard/PrivacyGuardPrefs.java
new file mode 100644
index 0000000..0f45d98
--- /dev/null
+++ b/src/com/android/settings/privacyguard/PrivacyGuardPrefs.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2013 Slimroms
+ *
+ * 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.privacyguard;
+
+import android.app.Activity;
+import android.content.Context;
+import android.os.Bundle;
+import android.preference.CheckBoxPreference;
+import android.preference.Preference;
+import android.preference.Preference.OnPreferenceChangeListener;
+import android.preference.PreferenceScreen;
+import android.provider.Settings;
+import android.provider.Settings.SettingNotFoundException;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ListView;
+
+import com.android.internal.logging.MetricsLogger;
+import com.android.settings.R;
+import com.android.settings.SettingsPreferenceFragment;
+import com.android.settings.Utils;
+import cyanogenmod.providers.CMSettings;
+
+public class PrivacyGuardPrefs extends SettingsPreferenceFragment implements
+        OnPreferenceChangeListener {
+
+    private static final String TAG = "PrivacyGuardPrefs";
+
+    private static final String KEY_PRIVACY_GUARD_DEFAULT = "privacy_guard_default";
+
+    private CheckBoxPreference mPrivacyGuardDefault;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        addPreferencesFromResource(R.xml.privacy_guard_prefs);
+        PreferenceScreen prefSet = getPreferenceScreen();
+
+        mPrivacyGuardDefault = (CheckBoxPreference) findPreference(KEY_PRIVACY_GUARD_DEFAULT);
+        mPrivacyGuardDefault.setOnPreferenceChangeListener(this);
+
+        mPrivacyGuardDefault.setChecked(Settings.Secure.getInt(getContentResolver(),
+                CMSettings.Secure.PRIVACY_GUARD_DEFAULT, 0) == 1);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+            ViewGroup container, Bundle savedInstanceState) {
+        final View view = super.onCreateView(inflater, container, savedInstanceState);
+        final ListView list = (ListView) view.findViewById(android.R.id.list);
+        // our container already takes care of the padding
+        int paddingTop = list.getPaddingTop();
+        int paddingBottom = list.getPaddingBottom();
+        list.setPadding(0, paddingTop, 0, paddingBottom);
+        return view;
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        if (preference == mPrivacyGuardDefault) {
+            boolean value = (Boolean) newValue;
+            Settings.Secure.putInt(getContentResolver(),
+                    CMSettings.Secure.PRIVACY_GUARD_DEFAULT, value ? 1 : 0);
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    protected int getMetricsCategory() {
+        return MetricsLogger.DONT_TRACK_ME_BRO;
+    }
+}