Android-recyclerview嵌套recyclerview(GridLayout),保持内层item的选中状态

项目需要实现一个功能效果,要保持被选中条目的选中状态,其余的都保持未被选中的状态:

如图:

接收人下面是一个recyclerview(外层):

布局文件：

        <android.support.v7.widget.RecyclerView
            android:id="@+id/recyclerview"
            android:layout_marginLeft="16dp"
            android:layout_marginRight="16dp"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>

外层Recyclerview的Adapter布局:  adapter_receivertitile

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <TextView
        android:id="@+id/tv_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="18sp"
        android:textColor="#011020"
        />

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recyclerview2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>

</LinearLayout>

然后内层recyclerview的adapter布局:adapter_grid_receiver

<?xml version="1.0" encoding="utf-8"?>
<RadioButton xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/tv_name"
    android:layout_width="73dp"
    android:layout_height="36dp"
    android:button="@null"
    android:gravity="center"
    android:background="@drawable/selector_bg_infotype"
    android:textColor="@drawable/selector_text_gray2white">
</RadioButton>

下面上代码:

   mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
   MyAdapter mAdapter = new MyAdapter(R.layout.adapter_receivertitile, datalist);
   mRecyclerView.setAdapter(mAdapter);

    private RadioButton oldView ;   //定义一个view记录被点击的view
    public class MyAdapter extends BaseQuickAdapter{
        public MyAdapter(int layoutResId, List<ReceiverBean> data) {
            super(layoutResId, data);
        }

        @Override
        public void onBindViewHolder(BaseViewHolder holder, int position) {
            super.onBindViewHolder(holder, position);
            final List<ReceiverBean.UsersBean> usersList = datalist.get(position).getUsers();
            mGridRecyclerView.setHasFixedSize(true);
            mGridRecyclerView.setLayoutManager(new GridLayoutManager(getApplicationContext(),3));
            mGrideAdapter = new MyGridAdapter(R.layout.adapter_grid_receiver,usersList);
            mGridRecyclerView.setAdapter(mGrideAdapter);
            mGrideAdapter.setOnItemClickListener(new OnItemClickListener() {
                @Override
                public void onItemClick(BaseQuickAdapter adapter, View view, int position) {
                    selectedPersonName = usersList.get(position).getRealName();
                    selectedUserId = usersList.get(position).getUserId();
                    //强转成radiobutton
                    RadioButton radioButton = (RadioButton) view;
                    if(oldView!=null){
                        //将上一条被点击的设置为未选中 
                        oldView.setChecked(false);
                    }
                    //记录当前被点击的item
                    oldView = radioButton;
                }
            });
        }

        @Override
        protected void convert(BaseViewHolder helper, Object item) {
            ReceiverBean bean= (ReceiverBean) item;
            helper.setText(R.id.tv_title,bean.getAreaName());
            mGridRecyclerView = helper.getView(R.id.recyclerview2);
        }
    }


    class MyGridAdapter extends BaseQuickAdapter{

        public MyGridAdapter(int layoutResId, List<ReceiverBean.UsersBean> data) {
            super(layoutResId, data);
        }

        @Override
        protected void convert(BaseViewHolder helper, Object item) {
            ReceiverBean.UsersBean bean= (ReceiverBean.UsersBean) item;
            helper.setText(R.id.tv_name,bean.getRealName());
        }

        @Override
        public void onBindViewHolder(BaseViewHolder holder, int position) {
            super.onBindViewHolder(holder, position);
        }
    }

对了,recyclerview用的是github上的框架--BaseRecyclerViewAdapterHelper

这里我就不解释怎么用了,大家如果感兴趣可以自己去搜.

顺便记一笔:（跟上面的无关）

设置Gridlayout布局的时候   item的列数,间距设置 

        int spanCount = 3; // 3 columns
        int spacing = 30; // 30px
        boolean includeEdge = false;
        mRecyclerView.setHasFixedSize(true);
        mRecyclerView.setLayoutManager(new GridLayoutManager(this,3));
        mRecyclerView.addItemDecoration(new GridSpacingItemDecoration(spanCount, spacing, includeEdge)

有个需求里面嵌套的recyclerview是多张图片,结果习惯性的按ListView那种布局设置这个,导致图片显示的高度不一致.汗....