LVRecyclerViewHolder.java

/*
 * Created by LuaView.
 * Copyright (c) 2017, Alibaba Group. All rights reserved.
 *
 * This source code is licensed under the MIT.
 * For the full copyright and license information,please view the LICENSE file in the root directory of this source tree.
 */

package com.taobao.luaview.view.recyclerview;

import android.support.v7.widget.RecyclerView;
import android.view.View;

import com.taobao.luaview.global.Constants;
import com.taobao.luaview.userdata.base.UDLuaTable;
import com.taobao.luaview.userdata.list.UDBaseRecyclerView;

import org.luaj.vm2.Globals;

/**
 * ViewHolder for recyclerview
 *
 * @author song
 * @date 15/11/30
 */
public class LVRecyclerViewHolder extends RecyclerView.ViewHolder {
    private Globals mGlobals;
    private UDBaseRecyclerView mLuaUserData;

    public LVRecyclerViewHolder(View container, Globals globals, UDBaseRecyclerView luaUserData) {
        super(container);
        this.mGlobals = globals;
        this.mLuaUserData = luaUserData;
    }

    public void onInit(int position) {
        Object obj = itemView != null ? itemView.getTag(Constants.RES_LV_TAG) : null;
        if (obj instanceof UDLuaTable) {
            UDLuaTable cellData = (UDLuaTable) obj;
            initView(cellData, position);//初始化View
            initCallbacks(cellData, position);//点击回调
        }
    }

    /**
     * 初始化View
     *
     * @param cellData
     * @param position
     */
    private void initView(final UDLuaTable cellData, final int position) {
        mGlobals.saveContainer(cellData.getLVViewGroup());
        mLuaUserData.callCellInit(cellData, position);
        mGlobals.restoreContainer();
    }

    /**
     * init onClickListener, onLongClickListener
     *
     * @param position
     */
    public void initCallbacks(final UDLuaTable cellData, final int position) {
        if (itemView != null) {
            itemView.setOnClickListener(new View.OnClickListener() {//TODO 这里的position是初始化的时候给的，所以需要每次更新，类似onLayout里面的更新
                @Override
                public void onClick(View v) {
                    mLuaUserData.onCellClicked(cellData, getItemViewPosition(position));
                }
            });
            itemView.setOnLongClickListener(new View.OnLongClickListener() {
                @Override
                public boolean onLongClick(View v) {
                    return mLuaUserData.onCellLongClicked(cellData, getItemViewPosition(position));
                }
            });
        }
    }

    private int getItemViewPosition(final int defaultValue) {
        final Object posObj = itemView.getTag(Constants.RES_LV_TAG_POSITION);
        final int pos = posObj instanceof Integer ? (Integer) posObj : defaultValue;
        return pos;
    }

    /**
     * onLayout view
     *
     * @param position
     */
    public void onLayout(final int position) {
        Object obj = itemView.getTag(Constants.RES_LV_TAG);
        if (obj instanceof UDLuaTable) {
            final UDLuaTable cellData = (UDLuaTable) obj;
            mGlobals.saveContainer(cellData.getLVViewGroup());
            mLuaUserData.callCellLayout(cellData, position);
            mGlobals.restoreContainer();
        }
    }
}