RecycleView realizes item sideslip deletion and drag

In this paper, we share the specific code of RecycleView to realize item sideslip deletion and drag for your reference. The specific contents are as follows

1. Add dependencies

//  Side slip deletion dependency 
implementation 'com.yanzhenjie.recyclerview:support:1.3.2'

2. Layout files

The controls used here are: com. yanzhenjie. recyclerview. SwipeRecyclerView

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 tools:context=".MainActivity">
 
 <com.yanzhenjie.recyclerview.SwipeRecyclerView
  android:id="@+id/srv"
  android:layout_width="match_parent"
  android:layout_height="match_parent" />

</RelativeLayout>

3. Code implementation

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.DividerItemDecoration;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;

import com.google.gson.Gson;
import com.yanzhenjie.recyclerview.SwipeRecyclerView;
import com.yanzhenjie.recyclerview.touch.OnItemMoveListener;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class MainActivity extends AppCompatActivity {
 SwipeRecyclerView srv; // Control 
 List<JavaBean.DataBean> dataAll = new ArrayList<>(); // A collection of stored data 
 MyAdapter myAdapter; // Adapter 

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

  // Initialize control 
  initView();

  // Get data ,  Data can be simulated ,  Not on display 
  initData();

  // Monitor events 
  initListener();
 }

 // TODO 3  Monitor events 
 private void initListener() {
  srv.setItemViewSwipeEnabled(true); // Sideslip deletion   Default off 
  srv.setLongPressDragEnabled(true); // Drag-and-drop sort   Default off 
  //  Drag-and-drop monitor 
  srv.setOnItemMoveListener(new OnItemMoveListener() {
   //  This method is used in the Item Called when the swap position is dragged and dropped. 
   @Override
   public boolean onItemMove(RecyclerView.ViewHolder srcHolder, RecyclerView.ViewHolder targetHolder) {
    //  No. 1 1 Parameters are to be exchanged for Item , No. 2 Of the target location Item . 
    int adapterPosition = srcHolder.getAdapterPosition();
    int adapterPosition1 = targetHolder.getAdapterPosition();
    // swap Exchange data and update adapter . 
    Collections.swap(dataAll, adapterPosition, adapterPosition1);
    myAdapter.notifyItemMoved(adapterPosition, adapterPosition1);

    return true;//  Return true , indicating that the data exchange is successful, ItemView You can swap places. 
   }

   //  This method is used in the Item Called on sideslip deletion. 
   @Override
   public void onItemDismiss(RecyclerView.ViewHolder srcHolder) {
    //  Removes the Item Corresponding data, and refresh Adapter . 
    int position = srcHolder.getAdapterPosition();
    dataAll.remove(position);
    myAdapter.notifyItemRemoved(position);
   }
  });
 }

 //TODO 2  Get data 
 private void initData() {
  // The data obtained by callback here 
  OkgoData.getInstance().getDataByOkGo(new DataCallBack() {
   @Override
   public void getDataJson(String json) {
    List<JavaBean.DataBean> data = new Gson().fromJson(json, JavaBean.class).getData();
    dataAll.clear();
    dataAll.addAll(data);
    myAdapter.setNewData(dataAll);
    myAdapter.notifyDataSetChanged(); // Adapter notification update 
   }
  });
 }

 //TODO 1  Initialize control 
 private void initView() {
  srv = findViewById(R.id.srv); // Find the control 

  //  Add an underline 
  DividerItemDecoration decoration = new DividerItemDecoration(this, DividerItemDecoration.VERTICAL);
  srv.addItemDecoration(decoration);
  // Add adapter 
  myAdapter = new MyAdapter(R.layout.layout_adapter_item, dataAll);
  srv.setAdapter(myAdapter);

  // Add layout management   It must be added or it cannot be displayed 
  LinearLayoutManager layoutManager = new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false);
  srv.setLayoutManager(layoutManager);
 }
}

For other functions, please refer to: RecycleView sideslip deletion and drag