PaginationRecyclerView

This library based on RecyclerView, and has a purpose easy work with lazy loading (pagination) data.

You can use this library with our other library for work with Network API: https://github.com/JDroidCoder/apiservice

Install:

• Add jitpack repository in gradle(project level)

•  allprojects {
    repositories {
     ...
     maven { url 'https://jitpack.io' }
    }
   }
  

• Add dependency in gradle(app level)

• dependencies {
   implementation 'com.github.JDroidCoder:PaginationRecyclerView:v1.0.0'
  }
  

• enjoy ;)

Initialize library:

• Init in the xml

<jdroidcoder.ua.paginationrecyclerview.PaginationRecyclerView
  android:id="@+id/paginationRecyclerView"
  android:layout_width="match_parent"
  android:layout_height="match_parent" />

• Add OnPageChangeListener

•   
   paginationRecyclerView?.setOnPageChangeListener(object : OnPageChangeListener {
      override fun onPageChange(page: Int) {
         // Here you will receive next page
      }
  })
  

  Code example: Xml (activity_main):

  <android.support.constraint.ConstraintLayout 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">
       
       <jdroidcoder.ua.paginationrecyclerview.PaginationRecyclerView
    android:id="@+id/paginationRecyclerView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" />
  </android.support.constraint.ConstraintLayout>
  

  Activity class:

  class MainActivity : AppCompatActivity() {
  
      override fun onCreate(savedInstanceState: Bundle?) {
          super.onCreate(savedInstanceState)
          setContentView(R.layout.activity_main)
          val adapter =  RecyclerViewAdapter(generateList(1))
          paginationRecyclerView.adapter =adapter
          paginationRecyclerView?.layoutManager = LinearLayoutManager(this)
          paginationRecyclerView?.setOnPageChangeListener(object : OnPageChangeListener {
              override fun onPageChange(page: Int) {
                  adapter.addItems(generateList(page))
              }
          })
      }
  
      private fun generateList(page: Int): ArrayList {
          val arrayList = ArrayList()
          for (i in 0..10) {
              arrayList.add("Item $i page $page")
          }
          return arrayList
      }
  }
  

  item_style.xml:

  <TextView xmlns:android="http://schemas.android.com/apk/res/android"
      android:id="@+id/itemTextView"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:padding="20dp"
      android:textSize="20sp" />
  

  RecyclerViewAdapter:

  class RecyclerViewAdapter(private val items: ArrayList) : RecyclerView.Adapter() {
  
      override fun onCreateViewHolder(parent: ViewGroup, p1: Int): ViewHolder {
          return ViewHolder(LayoutInflater.from(parent?.context).inflate(R.layout.item_style, parent, false))
      }
  
      override fun onBindViewHolder(holder: ViewHolder, position: Int) {
          holder.itemTextView.text = items?.get(position)
      }
  
      override fun getItemCount(): Int {
          return items.size
      }
      
      fun addItems(items: ArrayList){
          this.items.addAll(items)
          notifyDataSetChanged()
      }
  }
  
  class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
      val itemTextView: TextView = view.itemTextView
  }
  

  If you have any question ask us here or write to email: jdroidcoder@gmail.com