SlideInBottomAdapter.java

package com.dl7.mvp.adapter;

import android.animation.Animator;
import android.animation.ObjectAnimator;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.StaggeredGridLayoutManager;
import android.view.View;

import jp.wasabeef.recyclerview.adapters.AnimationAdapter;

import static com.dl7.recycler.adapter.BaseQuickAdapter.EMPTY_VIEW;
import static com.dl7.recycler.adapter.BaseQuickAdapter.FOOTER_VIEW;
import static com.dl7.recycler.adapter.BaseQuickAdapter.HEADER_VIEW;
import static com.dl7.recycler.adapter.BaseQuickAdapter.LOADING_VIEW;

/**
 * Created by Rukey7 on 2016/12/1.
 */

public class SlideInBottomAdapter extends AnimationAdapter {
    public SlideInBottomAdapter(RecyclerView.Adapter<RecyclerView.ViewHolder> adapter) {
        super(adapter);
    }

    @Override protected Animator[] getAnimators(View view) {
        return new Animator[] {
                ObjectAnimator.ofFloat(view, "translationY", view.getMeasuredHeight(), 0)
        };
    }

    /**
     * Called when a view created by this adapter has been attached to a window.
     * simple to solve item will layout using all
     * {@link #_setFullSpan(RecyclerView.ViewHolder)}
     *
     * @param holder
     */
    @Override
    public void onViewAttachedToWindow(RecyclerView.ViewHolder holder) {
        super.onViewAttachedToWindow(holder);
        int type = holder.getItemViewType();
        if (type == EMPTY_VIEW || type == HEADER_VIEW || type == FOOTER_VIEW || type == LOADING_VIEW) {
            _setFullSpan(holder);
        }
    }

    /**
     * When set to true, the item will layout using all span area. That means, if orientation
     * is vertical, the view will have full width; if orientation is horizontal, the view will
     * have full height.
     * if the hold view use StaggeredGridLayoutManager they should using all span area
     *
     * @param holder True if this item should traverse all spans.
     */
    protected void _setFullSpan(RecyclerView.ViewHolder holder) {
        if (holder.itemView.getLayoutParams() instanceof StaggeredGridLayoutManager.LayoutParams) {
            StaggeredGridLayoutManager.LayoutParams params = (StaggeredGridLayoutManager.LayoutParams) holder.itemView.getLayoutParams();
            params.setFullSpan(true);
        }
    }

    @Override
    public void onAttachedToRecyclerView(RecyclerView recyclerView) {
        super.onAttachedToRecyclerView(recyclerView);
        RecyclerView.LayoutManager manager = recyclerView.getLayoutManager();
        if (manager instanceof GridLayoutManager) {
            final GridLayoutManager gridManager = ((GridLayoutManager) manager);
            gridManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
                @Override
                public int getSpanSize(int position) {
                    int type = getItemViewType(position);
                    return (type == EMPTY_VIEW || type == HEADER_VIEW || type == FOOTER_VIEW || type == LOADING_VIEW) ? gridManager.getSpanCount() : 1;
                }
            });
        }
    }
}