Detailed explanation of how to use Android RecyclerView

public class MainActivity extends AppCompatActivity {
  //Create RecyclerView  private RecyclerView recyclerView;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    (savedInstanceState);

    recyclerView = new RecyclerView(this);
    //Take it as the content layout of the activity    setContentView(recyclerView);

    //Set the layout of RecyclerView    (newLinearLayoutManager(this));

    //Fill content for RecyclerView - Create an Adapter - Three functions need to be rewrited    (() {

      //First customize a class inheritance and implement the constructor      class ViewHolerextends {

        // Views that bind sub-objects in ViewHolder        private TextViewtv;

        public ViewHoler(TextView itemView) {
          super(itemView);
          tv = itemView;//In this way, TextView can be associated with ViewHolder        }

        //Expose a function getTV() in the outside world and use it to return this TextView        public TextView getTV(){
          return tv;
        }
      }
      // Method to create ViewHolder      @Override
      public (ViewGroup parent, intviewType) {

        return new ViewHoler(newTextView(()));
      }
      //onBindViewHolder can assign values ​​to TextView - configure it in the outside world      @Override
      public void onBindViewHolder( holder, intposition) {
        ViewHoler vh = (ViewHoler) holder;
        ().setText("Item " + position);
      }
      //Get the number of RecyclerView subobjects      @Override
      public int getItemCount() {
        return 1000;
      }
    });
  }
}

@Override
public void onBindViewHolder( holder, intposition) {
ViewHoler vh = (ViewHoler) holder;
().setText(data[position]);
}

    @Override
    public int getItemCount() {
      return ;
    }

    /*Write an array to present the data obtained from a series of channels in the network and are all presented in the array*/
    private String[] data = new String[]{"hello","wang","xiaobao"};
  });
}

class MyAdapter extends  {

  /* new () can be transferred to a separate file
    * Inside Adapter(): Right-click - Refactor (refactor) - Move - Move to a class.
    * It will automatically extract the anonymous class into an internal class.
    *
    * Then continue to move to a separate file.
    */
  class ViewHolerextends  {
    private Viewroot; //No sense yet. Referring to the above case, you can connect with the outside world    private TextView tvTitle,tvContent;

    public ViewHoler(View root) {
      super(root);
      //We know that the layout passed in is list_cell; after creation, these two controls can be obtained.      tvTitle = (.tv_title);
      tvContent = (.tv_content);
    }
    // Two get methods need to be added to be accessed by the outside world    public TextViewgetTvTitle() {
      return tvTitle;
    }

    public TextViewgetTvContent() {
      return tvContent;
    }
  }

  @Override
  public (ViewGroup parent, intviewType) {
    /*
     *There is a view to create, not new TextView(). We need to create it in a different way based on a resource and use
     * LayoutInflater: Layout interpreter, use the layout interpreter to parse a layout. The first thing that comes to the layout is a resource, and the resource is the established cell
     * The second item: is the root object of the layout we created. Here we pass null. In this way, we create this layout.  Then get the control
     */
    return new ViewHoler((()).inflate(.list_cell,null));
  }

  @Override//Configure it separately // Let's create a data object.  Create a constructor  public void onBindViewHolder( holder, intposition) {
    ViewHoler vh = (ViewHoler) holder;
    //First get these data    Cell_Data cd = data[position];
    ().setText();
    ().setText();
  }

  //After creating the object, it is a CellData[]  private Cell_Data[]data = new Cell_Data[]{newCell_Data("Wang Xiaobao","hhh"),newCell_Data("news","This news is good")};

  @Override
  public int getItemCount() {
    return ;
  }
}

//Create a data object// List item datapublic class Cell_Data {

  public Cell_Data(String title,String content) {
    = title;
     = content;
  }

  public String title = "title";
  public String content = "content";
}

protected void onCreate(Bundle savedInstanceState) {
  (savedInstanceState);
  recyclerView = new RecyclerView(this);
  setContentView(recyclerView);
  //true; whether to flip, you can drag left and right - linear layout  (newLinearLayoutManager(,,true));
  //Create a table layout that is vertical by default and can be up and down  (newGridLayoutManager(this,3));

  (newMyAdapter());