Quick and dirty UI for viewing app op information.

Change-Id: If17bfbe84cf438ca9bb37bf446564f39de99cee1

Android.mk

@@ -2,7 +2,7 @@ LOCAL_PATH:= $(call my-dir)
 include $(CLEAR_VARS)
 
 LOCAL_JAVA_LIBRARIES := bouncycastle telephony-common
-LOCAL_STATIC_JAVA_LIBRARIES := guava android-support-v4 jsr305
+LOCAL_STATIC_JAVA_LIBRARIES := guava android-support-v4 android-support-v13 jsr305
 
 LOCAL_MODULE_TAGS := optional
 

AndroidManifest.xml

@@ -768,6 +768,24 @@
                 android:resource="@id/application_settings" />
         </activity>
 
+        <activity android:name="Settings$AppOpsSummaryActivity"
+                android:label="@string/app_ops_settings"
+                android:taskAffinity=""
+                android:excludeFromRecents="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <action android:name="android.settings.APP_OPS_SETTINGS" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.VOICE_LAUNCH" />
+                <category android:name="com.android.settings.SHORTCUT" />
+            </intent-filter>
+            <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
+                android:value="com.android.settings.applications.AppOpsSummary" />
+            <!--
+            <meta-data android:name="com.android.settings.TOP_LEVEL_HEADER_ID"
+                android:resource="@id/application_settings" /> -->
+        </activity>
+        
         <activity android:name="Settings$LocationSettingsActivity"
                 android:label="@string/location_settings_title"
                 android:configChanges="orientation|keyboardHidden|screenSize"

res/layout/app_ops_item.xml

@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2008, 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.
+*/
+-->
+
+<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:minHeight="?android:attr/listPreferredItemHeight"
+    android:paddingStart="?android:attr/listPreferredItemPaddingStart"
+    android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"
+    android:paddingTop="8dip"
+    android:paddingBottom="8dip"
+    android:columnCount="3">
+
+    <ImageView
+        android:id="@+id/app_icon"
+        android:layout_width="@android:dimen/app_icon_size"
+        android:layout_height="@android:dimen/app_icon_size"
+        android:layout_rowSpan="2"
+        android:layout_marginEnd="8dip"
+        android:scaleType="centerInside"
+        android:contentDescription="@null" />
+
+    <TextView
+        android:id="@+id/app_name"
+        android:layout_width="0dip"
+        android:layout_columnSpan="2"
+        android:layout_gravity="fill_horizontal"
+        android:layout_marginTop="2dip"
+        android:singleLine="true"
+        android:ellipsize="marquee"
+        android:textAppearance="?android:attr/textAppearanceMedium"
+        android:textAlignment="viewStart" />
+
+    <TextView
+        android:id="@+id/op_name"
+        android:layout_width="0dip"
+        android:layout_gravity="fill_horizontal"
+        android:textAppearance="?android:attr/textAppearanceSmall"
+        android:textAlignment="viewStart" />
+
+    <TextView
+        android:id="@+id/op_time"
+        android:layout_marginStart="8dip"
+        android:textAppearance="?android:attr/textAppearanceSmall" />
+
+</GridLayout>

res/layout/app_ops_summary.xml

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+**
+** Copyright 2013, 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="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <android.support.v4.view.ViewPager
+            android:id="@+id/pager"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1">
+        <android.support.v4.view.PagerTabStrip
+                android:id="@+id/tabs"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_gravity="top"
+                android:textAppearance="@style/TextAppearance.PagerTabs"
+                android:paddingLeft="@dimen/pager_tabs_padding"
+                android:paddingRight="@dimen/pager_tabs_padding">
+        </android.support.v4.view.PagerTabStrip>
+    </android.support.v4.view.ViewPager>
+
+</LinearLayout>

res/values/arrays.xml

@@ -548,6 +548,25 @@
         <item>auto</item>
     </string-array>
 
+    <!-- Names of categories of app ops tabs -->
+    <string-array name="app_ops_categories">
+        <item>Location</item>
+        <item>Personal</item>
+        <item>Device</item>
+    </string-array>
+
+    <!-- User display names for app ops codes -->
+    <string-array name="app_ops_names">
+        <item>Coarse Location</item>
+        <item>Fine Location</item>
+        <item>GPS</item>
+        <item>Vibrate</item>
+        <item>Contacts: Read</item>
+        <item>Contacts: Write</item>
+        <item>Call Log: Read</item>
+        <item>Call Log: Write</item>
+    </string-array>
+    
     <!-- Titles for the list of long press timeout options. -->
     <string-array name="long_press_timeout_selector_titles">
         <!-- A title for the option for short long-press timeout [CHAR LIMIT=25] -->

res/values/strings.xml

@@ -2698,6 +2698,12 @@
         If you turn off notifications for this app, you may miss important alerts and updates.
     </string>
 
+    <!-- App Ops Settings --> <skip />
+    <!-- [CHAR LIMIT=NONE] App ops settings title, on main settings screen. If clicked, the user is taken to a settings screen for app operations -->
+    <string name="app_ops_settings">App ops</string>
+    <!-- [CHAR LIMIT=NONE] Time label for an operation that is currently running. -->
+    <string name="app_ops_running">Running</string>
+    
     <!-- [CHAR LIMIT=25] Services settings screen, setting option name for the user to go to the screen to view app storage use -->
     <string name="storageuse_settings_title">Storage use</string>
     <!-- Services settings screen, setting option summary for the user to go to the screen to app storage use -->

src/com/android/settings/Settings.java

@@ -805,6 +805,7 @@ public class Settings extends PreferenceActivity
     public static class DeviceInfoSettingsActivity extends Settings { /* empty */ }
     public static class ApplicationSettingsActivity extends Settings { /* empty */ }
     public static class ManageApplicationsActivity extends Settings { /* empty */ }
+    public static class AppOpsSummaryActivity extends Settings { /* empty */ }
     public static class StorageUseActivity extends Settings { /* empty */ }
     public static class DevelopmentSettingsActivity extends Settings { /* empty */ }
     public static class AccessibilitySettingsActivity extends Settings { /* empty */ }

src/com/android/settings/applications/AppOpsCategory.java

@@ -0,0 +1,487 @@
+package com.android.settings.applications;
+
+import android.app.AppOpsManager;
+import android.app.ListFragment;
+import android.app.LoaderManager;
+import android.content.AsyncTaskLoader;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.Loader;
+import android.content.pm.ActivityInfo;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.text.format.DateUtils;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ImageView;
+import android.widget.ListView;
+import android.widget.TextView;
+
+import java.io.File;
+import java.text.Collator;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.List;
+
+import com.android.settings.R;
+
+public class AppOpsCategory extends ListFragment implements
+        LoaderManager.LoaderCallbacks<List<AppOpsCategory.AppOpEntry>> {
+
+    // This is the Adapter being used to display the list's data.
+    AppListAdapter mAdapter;
+
+    /**
+     * This class holds the per-item data in our Loader.
+     */
+    public static class AppEntry {
+        private final AppListLoader mLoader;
+        private final ApplicationInfo mInfo;
+        private final File mApkFile;
+        private String mLabel;
+        private Drawable mIcon;
+        private boolean mMounted;
+
+        public AppEntry(AppListLoader loader, ApplicationInfo info) {
+            mLoader = loader;
+            mInfo = info;
+            mApkFile = new File(info.sourceDir);
+        }
+
+        public ApplicationInfo getApplicationInfo() {
+            return mInfo;
+        }
+
+        public String getLabel() {
+            return mLabel;
+        }
+
+        public Drawable getIcon() {
+            if (mIcon == null) {
+                if (mApkFile.exists()) {
+                    mIcon = mInfo.loadIcon(mLoader.mPm);
+                    return mIcon;
+                } else {
+                    mMounted = false;
+                }
+            } else if (!mMounted) {
+                // If the app wasn't mounted but is now mounted, reload
+                // its icon.
+                if (mApkFile.exists()) {
+                    mMounted = true;
+                    mIcon = mInfo.loadIcon(mLoader.mPm);
+                    return mIcon;
+                }
+            } else {
+                return mIcon;
+            }
+
+            return mLoader.getContext().getResources().getDrawable(
+                    android.R.drawable.sym_def_app_icon);
+        }
+
+        @Override public String toString() {
+            return mLabel;
+        }
+
+        void loadLabel(Context context) {
+            if (mLabel == null || !mMounted) {
+                if (!mApkFile.exists()) {
+                    mMounted = false;
+                    mLabel = mInfo.packageName;
+                } else {
+                    mMounted = true;
+                    CharSequence label = mInfo.loadLabel(context.getPackageManager());
+                    mLabel = label != null ? label.toString() : mInfo.packageName;
+                }
+            }
+        }
+    }
+
+    public AppOpsCategory() {
+    }
+
+    public AppOpsCategory(int[] ops) {
+        Bundle args = new Bundle();
+        args.putIntArray("ops", ops);
+        setArguments(args);
+    }
+
+    /**
+     * This class holds the per-item data in our Loader.
+     */
+    public static class AppOpEntry {
+        private final AppOpsManager.PackageOps mPkgOps;
+        private final AppOpsManager.OpEntry mOp;
+        private final AppEntry mApp;
+
+        public AppOpEntry(AppOpsManager.PackageOps pkg, AppOpsManager.OpEntry op, AppEntry app) {
+            mPkgOps = pkg;
+            mOp = op;
+            mApp = app;
+        }
+
+        public AppEntry getAppEntry() {
+            return mApp;
+        }
+
+        public AppOpsManager.PackageOps getPackageOps() {
+            return mPkgOps;
+        }
+
+        public AppOpsManager.OpEntry getOpEntry() {
+            return mOp;
+        }
+
+        public long getTime() {
+            return mOp.getTime();
+        }
+
+        @Override public String toString() {
+            return mApp.getLabel();
+        }
+    }
+
+    /**
+     * Perform alphabetical comparison of application entry objects.
+     */
+    public static final Comparator<AppOpEntry> APP_OP_COMPARATOR = new Comparator<AppOpEntry>() {
+        private final Collator sCollator = Collator.getInstance();
+        @Override
+        public int compare(AppOpEntry object1, AppOpEntry object2) {
+            if (object1.getOpEntry().isRunning() != object2.getOpEntry().isRunning()) {
+                // Currently running ops go first.
+                return object1.getOpEntry().isRunning() ? -1 : 1;
+            }
+            if (object1.getTime() != object2.getTime()) {
+                // More recent times go first.
+                return object1.getTime() > object2.getTime() ? -1 : 1;
+            }
+            return sCollator.compare(object1.getAppEntry().getLabel(),
+                    object2.getAppEntry().getLabel());
+        }
+    };
+
+    /**
+     * Helper for determining if the configuration has changed in an interesting
+     * way so we need to rebuild the app list.
+     */
+    public static class InterestingConfigChanges {
+        final Configuration mLastConfiguration = new Configuration();
+        int mLastDensity;
+
+        boolean applyNewConfig(Resources res) {
+            int configChanges = mLastConfiguration.updateFrom(res.getConfiguration());
+            boolean densityChanged = mLastDensity != res.getDisplayMetrics().densityDpi;
+            if (densityChanged || (configChanges&(ActivityInfo.CONFIG_LOCALE
+                    |ActivityInfo.CONFIG_UI_MODE|ActivityInfo.CONFIG_SCREEN_LAYOUT)) != 0) {
+                mLastDensity = res.getDisplayMetrics().densityDpi;
+                return true;
+            }
+            return false;
+        }
+    }
+
+    /**
+     * Helper class to look for interesting changes to the installed apps
+     * so that the loader can be updated.
+     */
+    public static class PackageIntentReceiver extends BroadcastReceiver {
+        final AppListLoader mLoader;
+
+        public PackageIntentReceiver(AppListLoader loader) {
+            mLoader = loader;
+            IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
+            filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
+            filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
+            filter.addDataScheme("package");
+            mLoader.getContext().registerReceiver(this, filter);
+            // Register for events related to sdcard installation.
+            IntentFilter sdFilter = new IntentFilter();
+            sdFilter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE);
+            sdFilter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE);
+            mLoader.getContext().registerReceiver(this, sdFilter);
+        }
+
+        @Override public void onReceive(Context context, Intent intent) {
+            // Tell the loader about the change.
+            mLoader.onContentChanged();
+        }
+    }
+
+    /**
+     * A custom Loader that loads all of the installed applications.
+     */
+    public static class AppListLoader extends AsyncTaskLoader<List<AppOpEntry>> {
+        final InterestingConfigChanges mLastConfig = new InterestingConfigChanges();
+        final AppOpsManager mAppOps;
+        final PackageManager mPm;
+        final int[] mOps;
+
+        final HashMap<String, AppEntry> mAppEntries = new HashMap<String, AppEntry>();
+
+        List<AppOpEntry> mApps;
+        PackageIntentReceiver mPackageObserver;
+
+        public AppListLoader(Context context, int[] ops) {
+            super(context);
+            mAppOps = (AppOpsManager)context.getSystemService(Context.APP_OPS_SERVICE);
+            mPm = context.getPackageManager();
+            mOps = ops;
+        }
+
+        @Override public List<AppOpEntry> loadInBackground() {
+            final Context context = getContext();
+
+            List<AppOpsManager.PackageOps> pkgs = mAppOps.getPackagesForOps(mOps);
+            List<AppOpEntry> entries = new ArrayList<AppOpEntry>(pkgs.size());
+            for (int i=0; i<pkgs.size(); i++) {
+                AppOpsManager.PackageOps pkgOps = pkgs.get(i);
+                AppEntry appEntry = mAppEntries.get(pkgOps.getPackageName());
+                if (appEntry == null) {
+                    ApplicationInfo appInfo = null;
+                    try {
+                        appInfo = mPm.getApplicationInfo(pkgOps.getPackageName(),
+                                PackageManager.GET_DISABLED_COMPONENTS
+                                | PackageManager.GET_UNINSTALLED_PACKAGES);
+                    } catch (PackageManager.NameNotFoundException e) {
+                    }
+                    appEntry = new AppEntry(this, appInfo);
+                    appEntry.loadLabel(context);
+                    mAppEntries.put(pkgOps.getPackageName(), appEntry);
+                }
+                for (int j=0; j<pkgOps.getOps().size(); j++) {
+                    AppOpsManager.OpEntry opEntry = pkgOps.getOps().get(j);
+                    AppOpEntry entry = new AppOpEntry(pkgOps, opEntry, appEntry);
+                    entries.add(entry);
+                }
+            }
+
+            // Sort the list.
+            Collections.sort(entries, APP_OP_COMPARATOR);
+
+            // Done!
+            return entries;
+        }
+
+        /**
+         * Called when there is new data to deliver to the client.  The
+         * super class will take care of delivering it; the implementation
+         * here just adds a little more logic.
+         */
+        @Override public void deliverResult(List<AppOpEntry> apps) {
+            if (isReset()) {
+                // An async query came in while the loader is stopped.  We
+                // don't need the result.
+                if (apps != null) {
+                    onReleaseResources(apps);
+                }
+            }
+            List<AppOpEntry> oldApps = apps;
+            mApps = apps;
+
+            if (isStarted()) {
+                // If the Loader is currently started, we can immediately
+                // deliver its results.
+                super.deliverResult(apps);
+            }
+
+            // At this point we can release the resources associated with
+            // 'oldApps' if needed; now that the new result is delivered we
+            // know that it is no longer in use.
+            if (oldApps != null) {
+                onReleaseResources(oldApps);
+            }
+        }
+
+        /**
+         * Handles a request to start the Loader.
+         */
+        @Override protected void onStartLoading() {
+            if (mApps != null) {
+                // If we currently have a result available, deliver it
+                // immediately.
+                deliverResult(mApps);
+            }
+
+            // Start watching for changes in the app data.
+            if (mPackageObserver == null) {
+                mPackageObserver = new PackageIntentReceiver(this);
+            }
+
+            // Has something interesting in the configuration changed since we
+            // last built the app list?
+            boolean configChange = mLastConfig.applyNewConfig(getContext().getResources());
+
+            if (takeContentChanged() || mApps == null || configChange) {
+                // If the data has changed since the last time it was loaded
+                // or is not currently available, start a load.
+                forceLoad();
+            }
+        }
+
+        /**
+         * Handles a request to stop the Loader.
+         */
+        @Override protected void onStopLoading() {
+            // Attempt to cancel the current load task if possible.
+            cancelLoad();
+        }
+
+        /**
+         * Handles a request to cancel a load.
+         */
+        @Override public void onCanceled(List<AppOpEntry> apps) {
+            super.onCanceled(apps);
+
+            // At this point we can release the resources associated with 'apps'
+            // if needed.
+            onReleaseResources(apps);
+        }
+
+        /**
+         * Handles a request to completely reset the Loader.
+         */
+        @Override protected void onReset() {
+            super.onReset();
+
+            // Ensure the loader is stopped
+            onStopLoading();
+
+            // At this point we can release the resources associated with 'apps'
+            // if needed.
+            if (mApps != null) {
+                onReleaseResources(mApps);
+                mApps = null;
+            }
+
+            // Stop monitoring for changes.
+            if (mPackageObserver != null) {
+                getContext().unregisterReceiver(mPackageObserver);
+                mPackageObserver = null;
+            }
+        }
+
+        /**
+         * Helper function to take care of releasing resources associated
+         * with an actively loaded data set.
+         */
+        protected void onReleaseResources(List<AppOpEntry> apps) {
+            // For a simple List<> there is nothing to do.  For something
+            // like a Cursor, we would close it here.
+        }
+    }
+
+    public static class AppListAdapter extends ArrayAdapter<AppOpEntry> {
+        private final LayoutInflater mInflater;
+        private final CharSequence[] mOpNames;
+        private final CharSequence mRunningStr;
+
+        public AppListAdapter(Context context) {
+            super(context, android.R.layout.simple_list_item_2);
+            mInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+            mOpNames = context.getResources().getTextArray(R.array.app_ops_names);
+            mRunningStr = context.getResources().getText(R.string.app_ops_running);
+        }
+
+        public void setData(List<AppOpEntry> data) {
+            clear();
+            if (data != null) {
+                addAll(data);
+            }
+        }
+
+        CharSequence opTimeToString(AppOpsManager.OpEntry op) {
+            if (op.isRunning()) {
+                return "Running";
+            }
+            return DateUtils.getRelativeTimeSpanString(op.getTime(),
+                    System.currentTimeMillis(),
+                    DateUtils.MINUTE_IN_MILLIS,
+                    DateUtils.FORMAT_ABBREV_RELATIVE);
+        }
+
+        /**
+         * Populate new items in the list.
+         */
+        @Override public View getView(int position, View convertView, ViewGroup parent) {
+            View view;
+
+            if (convertView == null) {
+                view = mInflater.inflate(R.layout.app_ops_item, parent, false);
+            } else {
+                view = convertView;
+            }
+
+            AppOpEntry item = getItem(position);
+            ((ImageView)view.findViewById(R.id.app_icon)).setImageDrawable(
+                    item.getAppEntry().getIcon());
+            ((TextView)view.findViewById(R.id.app_name)).setText(item.getAppEntry().getLabel());
+            ((TextView)view.findViewById(R.id.op_name)).setText(
+                    mOpNames[item.getOpEntry().getOp()]);
+            ((TextView)view.findViewById(R.id.op_time)).setText(opTimeToString(item.getOpEntry()));
+
+            return view;
+        }
+    }
+
+    @Override public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+
+        // Give some text to display if there is no data.  In a real
+        // application this would come from a resource.
+        setEmptyText("No applications");
+
+        // We have a menu item to show in action bar.
+        setHasOptionsMenu(true);
+
+        // Create an empty adapter we will use to display the loaded data.
+        mAdapter = new AppListAdapter(getActivity());
+        setListAdapter(mAdapter);
+
+        // Start out with a progress indicator.
+        setListShown(false);
+
+        // Prepare the loader.  Either re-connect with an existing one,
+        // or start a new one.
+        getLoaderManager().initLoader(0, null, this);
+    }
+
+    @Override public void onListItemClick(ListView l, View v, int position, long id) {
+        // Insert desired behavior here.
+        Log.i("LoaderCustom", "Item clicked: " + id);
+    }
+
+    @Override public Loader<List<AppOpEntry>> onCreateLoader(int id, Bundle args) {
+        Bundle fargs = getArguments();
+        return new AppListLoader(getActivity(), fargs != null ? fargs.getIntArray("ops") : null);
+    }
+
+    @Override public void onLoadFinished(Loader<List<AppOpEntry>> loader, List<AppOpEntry> data) {
+        // Set the new data in the adapter.
+        mAdapter.setData(data);
+
+        // The list should now be shown.
+        if (isResumed()) {
+            setListShown(true);
+        } else {
+            setListShownNoAnimation(true);
+        }
+    }
+
+    @Override public void onLoaderReset(Loader<List<AppOpEntry>> loader) {
+        // Clear the data in the adapter.
+        mAdapter.setData(null);
+    }
+}

src/com/android/settings/applications/AppOpsSummary.java

@@ -0,0 +1,106 @@
+package com.android.settings.applications;
+
+import android.app.AppOpsManager;
+import android.app.Fragment;
+import android.app.FragmentManager;
+import android.os.Bundle;
+import android.preference.PreferenceFrameLayout;
+import android.support.v13.app.FragmentPagerAdapter;
+import android.support.v4.view.PagerTabStrip;
+import android.support.v4.view.ViewPager;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.android.settings.R;
+
+public class AppOpsSummary extends Fragment {
+    // layout inflater object used to inflate views
+    private LayoutInflater mInflater;
+    
+    private ViewGroup mContentContainer;
+    private View mRootView;
+    private ViewPager mViewPager;
+
+    CharSequence[] mPageNames;
+    static int[][] sPageOps = new int[][] {
+        // "Location" page.
+        new int[] { AppOpsManager.OP_COARSE_LOCATION, AppOpsManager.OP_FINE_LOCATION,
+                AppOpsManager.OP_GPS},
+
+        // "Personal" page.
+        new int[] { AppOpsManager.OP_READ_CONTACTS, AppOpsManager.OP_WRITE_CONTACTS,
+                AppOpsManager.OP_READ_CALL_LOG, AppOpsManager.OP_WRITE_CALL_LOG },
+
+        // "Device" page.
+        new int[] { AppOpsManager.OP_VIBRATE },
+    };
+
+    int mCurPos;
+
+    class MyPagerAdapter extends FragmentPagerAdapter implements ViewPager.OnPageChangeListener {
+
+        public MyPagerAdapter(FragmentManager fm) {
+            super(fm);
+        }
+
+        @Override
+        public Fragment getItem(int position) {
+            return new AppOpsCategory(sPageOps[position]);
+        }
+
+        @Override
+        public int getCount() {
+            return sPageOps.length;
+        }
+
+        @Override
+        public CharSequence getPageTitle(int position) {
+            return mPageNames[position];
+        }
+
+        @Override
+        public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
+        }
+
+        @Override
+        public void onPageSelected(int position) {
+            mCurPos = position;
+        }
+
+        @Override
+        public void onPageScrollStateChanged(int state) {
+            if (state == ViewPager.SCROLL_STATE_IDLE) {
+                //updateCurrentTab(mCurPos);
+            }
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        // initialize the inflater
+        mInflater = inflater;
+
+        View rootView = mInflater.inflate(R.layout.app_ops_summary,
+                container, false);
+        mContentContainer = container;
+        mRootView = rootView;
+
+        mPageNames = getResources().getTextArray(R.array.app_ops_categories);
+
+        mViewPager = (ViewPager) rootView.findViewById(R.id.pager);
+        MyPagerAdapter adapter = new MyPagerAdapter(getChildFragmentManager());
+        mViewPager.setAdapter(adapter);
+        mViewPager.setOnPageChangeListener(adapter);
+        PagerTabStrip tabs = (PagerTabStrip) rootView.findViewById(R.id.tabs);
+        tabs.setTabIndicatorColorResource(android.R.color.holo_blue_light);
+
+        // We have to do this now because PreferenceFrameLayout looks at it
+        // only when the view is added.
+        if (container instanceof PreferenceFrameLayout) {
+            ((PreferenceFrameLayout.LayoutParams) rootView.getLayoutParams()).removeBorders = true;
+        }
+
+        return rootView;
+    }
+}