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Diffstat (limited to 'src/com/android/launcher3/model/AbstractUserComparator.java')
-rw-r--r-- | src/com/android/launcher3/model/AbstractUserComparator.java | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/com/android/launcher3/model/AbstractUserComparator.java b/src/com/android/launcher3/model/AbstractUserComparator.java new file mode 100644 index 000000000..bd28560f3 --- /dev/null +++ b/src/com/android/launcher3/model/AbstractUserComparator.java @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2015 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. + */ +package com.android.launcher3.model; + +import android.content.Context; + +import com.android.launcher3.ItemInfo; +import com.android.launcher3.compat.UserHandleCompat; +import com.android.launcher3.compat.UserManagerCompat; + +import java.util.Comparator; + +/** + * A comparator to arrange items based on user profiles. + */ +public abstract class AbstractUserComparator<T extends ItemInfo> implements Comparator<T> { + + private final UserManagerCompat mUserManager; + private final UserHandleCompat mMyUser; + + public AbstractUserComparator(Context context) { + mUserManager = UserManagerCompat.getInstance(context); + mMyUser = UserHandleCompat.myUserHandle(); + } + + @Override + public int compare(T lhs, T rhs) { + if (mMyUser.equals(lhs.user)) { + return -1; + } else { + Long aUserSerial = mUserManager.getSerialNumberForUser(lhs.user); + Long bUserSerial = mUserManager.getSerialNumberForUser(rhs.user); + return aUserSerial.compareTo(bUserSerial); + } + } +} |