Sunny Goyal
50 lines
1.6 KiB
Java
50 lines
1.6 KiB
Java
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.model;
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import android.content.Context;
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import com.android.launcher3.ItemInfo;
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import com.android.launcher3.compat.UserHandleCompat;
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import com.android.launcher3.compat.UserManagerCompat;
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import java.util.Comparator;
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/**
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* A comparator to arrange items based on user profiles.
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*/
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public abstract class AbstractUserComparator<T extends ItemInfo> implements Comparator<T> {
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private final UserManagerCompat mUserManager;
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private final UserHandleCompat mMyUser;
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public AbstractUserComparator(Context context) {
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mUserManager = UserManagerCompat.getInstance(context);
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mMyUser = UserHandleCompat.myUserHandle();
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}
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@Override
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public int compare(T lhs, T rhs) {
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if (mMyUser.equals(lhs.user)) {
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return -1;
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} else {
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Long aUserSerial = mUserManager.getSerialNumberForUser(lhs.user);
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Long bUserSerial = mUserManager.getSerialNumberForUser(rhs.user);
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return aUserSerial.compareTo(bUserSerial);
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}
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}
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}
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