/*
 * Copyright (C) 2015 Hippo Seven
 *
 * 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
 * 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.hippo.util;

import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.StaggeredGridLayoutManager;

public final class LayoutManagerUtils {

    public static void scrollToPositionWithOffset(
            RecyclerView.LayoutManager layoutManager,int position, int offset) {
        if (layoutManager instanceof LinearLayoutManager) {
            ((LinearLayoutManager) layoutManager).scrollToPositionWithOffset(position, offset);
        } else if (layoutManager instanceof StaggeredGridLayoutManager) {
            ((StaggeredGridLayoutManager) layoutManager).scrollToPositionWithOffset(position, offset);
        } else {
            throw new IllegalStateException("Can't do scrollToPositionWithOffset for " +
                    layoutManager.getClass().getName());
        }
    }
}