RecyclerView的距离每次点击的时候拉长

把RecyclerView的Manager的设置写在OnCreate（）方法里面

private void initSetRecyclerViewManger() {
histtoryshowarea.setLayoutManager(new LinearLayoutManager(this));
histtoryshowarea.addItemDecoration(new DividerItemDecoration(this,DividerItemDecoration.VERTICAL));
}