详情网站：手把手教你使用BaseSectionQuickAdapter实现分组功能，史上最详细Adapter使用教程_basequickadapter 分组_杨阿程的博客-CSDN博客 

 

 //加入二个包implementation 'com.android.support:recyclerview-v7:26.0.0-beta1'implementation 'com.github.CymChad:BaseRecyclerViewAdapterHelper:2.9.34'import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;public class MainActivity extends AppCompatActivity {private final GridLayoutManager manager = new GridLayoutManager(this, 4);private final SectionAdapter adapter = new SectionAdapter(R.layout.section_item, R.layout.section_item_header, new ArrayList<>());@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);RecyclerView mTreeListRecy = findViewById(R.id.mTreeListRecy);mTreeListRecy.setLayoutManager(manager);mTreeListRecy.setAdapter((RecyclerView.Adapter) adapter);List<SectionBean> list = new ArrayList<>();for (int i = 0; i < 3; i++) {//添加标题内容list.add(new SectionBean(true, "标题" + i));//添加数据内容for (int j = 0; j < 10; j++) {list.add(new SectionBean(new SectionBean.SectionDataBean("数据" + j)));}}adapter.addData(list);}
}<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"tools:context="com.example.recycler_view_list.MainActivity"><android.support.v7.widget.RecyclerViewandroid:id="@+id/mTreeListRecy"android:layout_width="match_parent"android:layout_height="wrap_content"/></android.support.constraint.ConstraintLayout>import com.chad.library.adapter.base.BaseSectionQuickAdapter;
import com.chad.library.adapter.base.BaseViewHolder;public class SectionAdapter extends BaseSectionQuickAdapter<SectionBean, BaseViewHolder> {/*** Same as QuickAdapter#QuickAdapter(Context,int) but with* some initialization data.** @param layoutResId      The layout resource id of each item.* @param sectionHeadResId The section head layout id for each item* @param data             A new list is created out of this one to avoid mutable list*/public SectionAdapter(int layoutResId, int sectionHeadResId, List<SectionBean> data) {super(layoutResId, sectionHeadResId, data);}@Overrideprotected void convertHead(BaseViewHolder helper, SectionBean item) {helper.setText(R.id.mSectionItemHeaderText, item.header);Log.i(TAG + "_Log_", "2023/2/28: item.header=" +item.header);}@Overrideprotected void convert(BaseViewHolder helper, SectionBean item) {SectionBean.SectionDataBean bean = item.t;helper.setText(R.id.mSectionItemText, bean.getStr());}
}