RecyclerVIew achieves suspended ceiling effect

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:andro
  android:layout_width="match_parent"
  android:layout_height="match_parent">

  <.
    android:
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

  <TextView
    android:
    android:layout_width="match_parent"
    android:layout_height="50dp"
    android:background="#EFFAE7"
    android:gravity="center"
    android:text="Ceiling Text 1" />

  <!--<include layout="@layout/layout_sticky_header_view"/>-->
</FrameLayout>

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:andro
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical">

  <RelativeLayout
    android:layout_marginLeft="5dp"
    android:layout_marginRight="5dp"
    android:
    android:layout_width="match_parent"
    android:layout_height="30dp">

    <TextView
      android:
      android:layout_centerVertical="true"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content" />

    <TextView
      android:
      android:layout_centerVertical="true"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignParentRight="true" />

    <View
      android:layout_width="match_parent"
      android:layout_height="1dp"
      android:layout_alignParentBottom="true"
      android:background="#ffffff"/>

  </RelativeLayout>

  <TextView
    android:
    android:layout_width="match_parent"
    android:layout_height="50dp"
    android:background="#EFFAE7"
    android:gravity="center"
    android:text="Ceiling Text 1" />

</FrameLayout>

public class MainActivity extends AppCompatActivity {

  private TextView tvStickyHeaderView;
  private RecyclerView recyclerView;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    (savedInstanceState);
    setContentView(.activity_main);
    initView();
    initListener();
  }

  /**
    * Initialize View
    */
  private void initView() {
    recyclerView = (RecyclerView) findViewById();
    tvStickyHeaderView = (TextView) findViewById(.tv_sticky_header_view);
    (new LinearLayoutManager(this));
    (new StickyExampleAdapter(this, getData()));
  }

  /**
    * Initialize Listener
    */
  private void initListener() {
    (new () {
      @Override
      public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
        (recyclerView, dx, dy);
        View stickview = (0, 0);
        if (stickview != null && () != null) {
          if (!((), ())) {
            (());
          }
        }
        View transInfoView = (
            0, () + 1);
        if (() != null) {

          int transViewStatus = (int) ();
          int top = ();

          if (transViewStatus == StickyExampleAdapter.HAS_STICKY_VIEW) {
            if (top > 0) {
              int dealtY = top - ();
              (dealtY);
            } else {
              (0);
            }
          } else if (transViewStatus == StickyExampleAdapter.NONE_STICKY_VIEW) {
            (0);
          }
        }
      }
    });
  }

  public List<StickyBean> getData() {
    List<StickyBean> stickyExampleModels = new ArrayList<>();

    for (int index = 0; index < 100; index++) {
      if (index < 15) {
        (new StickyBean(
            "Ceiling Text 1", "name" + index, "gender" + index));
      } else if (index < 25) {
        (new StickyBean(
            "Ceiling Text 2", "name" + index, "gender" + index));
      } else if (index < 35) {
        (new StickyBean(
            "Ceiling Text 3", "name" + index, "gender" + index));
      } else {
        (new StickyBean(
            "Ceiling Text 4", "name" + index, "gender" + index));
      }
    }
    return stickyExampleModels;
  }
}

public class StickyExampleAdapter extends <> {
  //The first top  private static final int FIRST_STICKY_VIEW = 1;
  //Other top suction  static final int HAS_STICKY_VIEW = 2;
  //Normal View  static final int NONE_STICKY_VIEW = 3;
  private final LayoutInflater mInflate;
  private final List<StickyBean> datas;

  StickyExampleAdapter(Context context, List<StickyBean> datas){
    mInflate = (context);
     = datas;
  }

  @Override
  public RecyclerViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

    View inflate = (.item_ui, parent, false);
    return new RecyclerViewHolder(inflate);
  }

  @Override
  public void onBindViewHolder(RecyclerViewHolder holder, int position) {
    StickyBean stickyBean = (position);
    ();
    ();

    if (position == 0) {
      ();
      ();
      (FIRST_STICKY_VIEW);
    } else {
      if (!(, (position - 1).sticky)) {
        ();
        ();
        (HAS_STICKY_VIEW);
      } else {
        ();
        (NONE_STICKY_VIEW);
      }
    }
    //Set ContentDescription here, as a content description, you can take it out through getContentDescription, and the effect is similar to setTag.    ();
  }

  @Override
  public int getItemCount() {
    return datas == null ? 0 : ();
  }

  public class RecyclerViewHolder extends {
    TextView tvStickyHeader;
    RelativeLayout rlContentWrapper;
    TextView tvName;
    TextView tvGender;
    RecyclerViewHolder(View itemView) {
      super(itemView);
      tvStickyHeader = (TextView) (.tv_sticky_header_view);
      rlContentWrapper = (RelativeLayout) (.rl_content_wrapper);
      tvName = (TextView) ();
      tvGender = (TextView) ();
    }
  }
}

public class StickyBean {

  public String name;
  public String autor;
  public String sticky;

  public StickyBean(String sticky, String name, String autor) {
     = sticky;
     = name;
     = autor;
  }
}

apply plugin: ''

android {
  compileSdkVersion 26
  buildToolsVersion "25.0.3"
  defaultConfig {
    applicationId ""
    minSdkVersion 15
    targetSdkVersion 26
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner ""
  }
  buildTypes {
    release {
      minifyEnabled false
      proguardFiles getDefaultProguardFile(''), ''
    }
  }
}

dependencies {
  compile fileTree(dir: 'libs', include: ['*.jar'])
  androidTestCompile(':espresso-core:2.2.2', {
    exclude group: '', module: 'support-annotations'
  })
  compile ':appcompat-v7:26.0.0-alpha1'
  compile ':recyclerview-v7:23.1.0'
  testCompile 'junit:junit:4.12'
}