Android BaseRecyclerViewAdapterHelper

我知道如何获取一级的，那我想知道如何获取二级列表的所有数据呢 ？？

花点时间看一下BaseQuickAdapter内的代码实现

private var mOnItemClickListener: OnItemClickListener? = null
private var mOnItemLongClickListener: OnItemLongClickListener? = null
private var mOnItemChildClickListener: OnItemChildClickListener? = null
private var mOnItemChildLongClickListener: OnItemChildLongClickListener? = null

    /**
     * 绑定 item 点击事件
     * @param viewHolder VH
     */
    protected open fun bindViewClickListener(viewHolder: VH, viewType: Int) {
        mOnItemClickListener?.let {
            viewHolder.itemView.setOnClickListener { v ->
                var position = viewHolder.adapterPosition
                if (position == RecyclerView.NO_POSITION) {
                    return@setOnClickListener
                }
                position -= headerLayoutCount
                setOnItemClick(v, position)
            }
        }
        mOnItemLongClickListener?.let {
            viewHolder.itemView.setOnLongClickListener { v ->
                var position = viewHolder.adapterPosition
                if (position == RecyclerView.NO_POSITION) {
                    return@setOnLongClickListener false
                }
                position -= headerLayoutCount
                setOnItemLongClick(v, position)
            }
        }

        mOnItemChildClickListener?.let {
            for (id in getChildClickViewIds()) {
                viewHolder.itemView.findViewById<View>(id)?.let { childView ->
                    if (!childView.isClickable) {
                        childView.isClickable = true
                    }
                    childView.setOnClickListener { v ->
                        var position = viewHolder.adapterPosition
                        if (position == RecyclerView.NO_POSITION) {
                            return@setOnClickListener
                        }
                        position -= headerLayoutCount
                        setOnItemChildClick(v, position)
                    }
                }
            }
        }
        mOnItemChildLongClickListener?.let {
            for (id in getChildLongClickViewIds()) {
                viewHolder.itemView.findViewById<View>(id)?.let { childView ->
                    if (!childView.isLongClickable) {
                        childView.isLongClickable = true
                    }
                    childView.setOnLongClickListener { v ->
                        var position = viewHolder.adapterPosition
                        if (position == RecyclerView.NO_POSITION) {
                            return@setOnLongClickListener false
                        }
                        position -= headerLayoutCount
                        setOnItemChildLongClick(v, position)
                    }
                }
            }
        }
    }
/**
     * override this method if you want to override click event logic
     *
     * 如果你想重新实现 item 点击事件逻辑，请重写此方法
     * @param v
     * @param position
     */
    protected open fun setOnItemClick(v: View, position: Int) {
        mOnItemClickListener?.onItemClick(this, v, position)
    }

    /**
     * override this method if you want to override longClick event logic
     *
     * 如果你想重新实现 item 长按事件逻辑，请重写此方法
     * @param v
     * @param position
     * @return
     */
    protected open fun setOnItemLongClick(v: View, position: Int): Boolean {
        return mOnItemLongClickListener?.onItemLongClick(this, v, position) ?: false
    }

    protected open fun setOnItemChildClick(v: View, position: Int) {
        mOnItemChildClickListener?.onItemChildClick(this, v, position)
    }

    protected open fun setOnItemChildLongClick(v: View, position: Int): Boolean {
        return mOnItemChildLongClickListener?.onItemChildLongClick(this, v, position) ?: false
    }

使用 setOnItemChildClick(v: View, position: Int)方法可以监听到“嵌套RecycleView item”

@Override
    public void onItemClick(BaseQuickAdapter adapter, View view, int position) {
        Tips.show("嵌套RecycleView item 收到: " + "点击了第 " + position + " 一次");
    }