Merge "Ensure all active Device Admins are listed." into jb-mr2-dev

import java.io.IOException;

import java.util.ArrayList;

import java.util.Collections;

import java.util.HashSet;

import java.util.List;

import java.util.Set;

public class DeviceAdminSettings extends ListFragment {

    static final String TAG = "DeviceAdminSettings";

        List<ResolveInfo> avail = getActivity().getPackageManager().queryBroadcastReceivers(

                new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED),

                PackageManager.GET_META_DATA | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS);

        int count = avail == null ? 0 : avail.size();

        for (int i=0; i<count; i++) {

        if (avail == null) {

            avail = Collections.emptyList();

        }

        // Some admins listed in mActiveAdmins may not have been found by the above query.

        // We thus add them separately.

        Set<ComponentName> activeAdminsNotInAvail = new HashSet<ComponentName>(mActiveAdmins);

        for (ResolveInfo ri : avail) {

            ComponentName riComponentName =

                    new ComponentName(ri.activityInfo.packageName, ri.activityInfo.name);

            activeAdminsNotInAvail.remove(riComponentName);

        }

        if (!activeAdminsNotInAvail.isEmpty()) {

            avail = new ArrayList<ResolveInfo>(avail);

            PackageManager packageManager = getActivity().getPackageManager();

            for (ComponentName unlistedActiveAdmin : activeAdminsNotInAvail) {

                List<ResolveInfo> resolved = packageManager.queryBroadcastReceivers(

                        new Intent().setComponent(unlistedActiveAdmin),

                        PackageManager.GET_META_DATA

                                | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS);

                if (resolved != null) {

                    avail.addAll(resolved);

                }

            }

        }

        for (int i = 0, count = avail.size(); i < count; i++) {

            ResolveInfo ri = avail.get(i);

            try {

                DeviceAdminInfo dpi = new DeviceAdminInfo(getActivity(), ri);