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Wonerujo/app/src/main/java/com/m2049r/xmrwallet/layout/DiffCallback.java

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1.3 KiB

/*
* Copyright (c) 2021 yorha-0x
*
* 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.m2049r.xmrwallet.layout;
import androidx.recyclerview.widget.DiffUtil;
import java.util.List;
public abstract class DiffCallback<T> extends DiffUtil.Callback {
protected final List<T> mOldList;
protected final List<T> mNewList;
public DiffCallback(List<T> oldList, List<T> newList) {
this.mOldList = oldList;
this.mNewList = newList;
}
@Override
public int getOldListSize() {
return mOldList.size();
}
@Override
public int getNewListSize() {
return mNewList.size();
}
public abstract boolean areItemsTheSame(int oldItemPosition, int newItemPosition);
public abstract boolean areContentsTheSame(int oldItemPosition, int newItemPosition);
}