mirror of https://github.com/NekoX-Dev/NekoX.git
64 lines
2.4 KiB
Java
64 lines
2.4 KiB
Java
/*
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* Copyright 2018 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 androidx.recyclerview.widget;
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import android.graphics.Canvas;
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import android.view.View;
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/**
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* Utility class for {@link ItemTouchHelper} which handles item transformations for different
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* API versions.
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* <p/>
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* This class has methods that map to {@link ItemTouchHelper.Callback}'s drawing methods. Default
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* implementations in {@link ItemTouchHelper.Callback} call these methods with
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* {@link RecyclerView.ViewHolder#itemView} and {@link ItemTouchUIUtil} makes necessary changes
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* on the View depending on the API level. You can access the instance of {@link ItemTouchUIUtil}
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* via {@link ItemTouchHelper.Callback#getDefaultUIUtil()} and call its methods with the children
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* of ViewHolder that you want to apply default effects.
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*
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* @see ItemTouchHelper.Callback#getDefaultUIUtil()
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*/
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public interface ItemTouchUIUtil {
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/**
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* The default implementation for {@link ItemTouchHelper.Callback#onChildDraw(Canvas,
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* RecyclerView, RecyclerView.ViewHolder, float, float, int, boolean)}
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*/
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void onDraw(Canvas c, RecyclerView recyclerView, View view,
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float dX, float dY, int actionState, boolean isCurrentlyActive);
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/**
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* The default implementation for {@link ItemTouchHelper.Callback#onChildDrawOver(Canvas,
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* RecyclerView, RecyclerView.ViewHolder, float, float, int, boolean)}
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*/
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void onDrawOver(Canvas c, RecyclerView recyclerView, View view,
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float dX, float dY, int actionState, boolean isCurrentlyActive);
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/**
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* The default implementation for {@link ItemTouchHelper.Callback#clearView(RecyclerView,
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* RecyclerView.ViewHolder)}
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*/
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void clearView(View view);
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/**
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* The default implementation for {@link ItemTouchHelper.Callback#onSelectedChanged(
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* RecyclerView.ViewHolder, int)}
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*/
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void onSelected(View view);
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}
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