Merge "Fix flicker for Device admin apps." into tm-dev

import android.text.TextUtils;

import android.util.ArrayMap;

import android.util.Log;

import android.util.SparseArray;

import androidx.annotation.VisibleForTesting;

import androidx.preference.Preference;

     * user.

     */

    private final ArrayList<DeviceAdminListItem> mAdmins = new ArrayList<>();

    private final SparseArray<ComponentName> mProfileOwnerComponents = new SparseArray<>();

    private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {

        @Override

        super.displayPreference(screen);

        mPreferenceGroup = screen.findPreference(getPreferenceKey());

        mFooterPreference = mPreferenceGroup.findPreference(KEY_DEVICE_ADMIN_FOOTER);

        updateList();

    }

    @Override

                null /* broadcastPermission */, null /* scheduler */);

    }

    @Override

    public void updateState(Preference preference) {

        super.updateState(preference);

        mProfileOwnerComponents.clear();

        final List<UserHandle> profiles = mUm.getUserProfiles();

        final int profilesSize = profiles.size();

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

            final int profileId = profiles.get(i).getIdentifier();

            mProfileOwnerComponents.put(profileId, mDPM.getProfileOwnerAsUser(profileId));

        }

        updateList();

    }

    @Override

    public void onStop() {

        mContext.unregisterReceiver(mBroadcastReceiver);