| /* |
| * Copyright (C) 2019 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.car.ui.recyclerview; |
| |
| import android.view.View; |
| |
| import androidx.recyclerview.widget.RecyclerView; |
| |
| /** |
| * An abstract class that defines required contract for a custom scroll bar for the {@link |
| * CarUiRecyclerView}. All custom scroll bar must inherit from this class. |
| */ |
| public interface ScrollBar { |
| /** |
| * The concrete class should implement this method to initialize configuration of a scrollbar |
| * view. |
| */ |
| void initialize(RecyclerView recyclerView, View scrollView); |
| |
| /** |
| * Requests layout of the scrollbar. Should be called when there's been a change that will |
| * affect |
| * the size of the scrollbar view. |
| */ |
| void requestLayout(); |
| |
| /** Sets the padding of the scrollbar, relative to the padding of the RecyclerView. */ |
| void setPadding(int padddingStart, int paddingEnd); |
| } |