Wrap of Google's Paging library making it easy to implement

Paging component implementation is encapsulated in PagingManager

pagingManager = PagingManager
.builder<SimpleModel>()
.setLifecycle(this)
.setPageSize(10)
.setLayout(R.layout.simple_item)
.onItemBind { itemView, position, item ->
    onBindItem(position, itemView, item)
}.checkItemIds { oldItem, newItem ->
    oldItem.id == newItem.id
}.checkItemContent { oldItem, newItem ->
    oldItem == newItem
}.onDataRequested { pageIndex, lastItem ->
    loadData(pageIndex, lastItem)
}.build()

PagingManager has public method for getting adapter: recyclerView.adapter = pagingManager.getAdapter()

PagingManager is generic on data type

setLifecycle is to set lifecycle owner that is used by manager to observe component's PagedList

setPageSize initializes page size including initial page

setLayout is to set item's layout id

onItemBind is called on adapter's onBindViewHolder

checkItemIds and checkItemContent are used by DiffUtil's callback

onDataRequested is called every time when DataSource's callbacks are triggered,

there is passing two parameters:pageIndex ans lastItem for loading relevant data

after loading data PagingManager has public method setData(pageIndex: Int, data: List<T>) for populating corresponding page

you can additionally set .onReflectLoader { isVisible -> } and .onReflectPlaceHolder { isVisible -> },

onReflectLoader is called every time page starts loading

onReflectPlaceHolder is called if initial page is loaded empty

PagingManager also has two public methods for updating data

pagingManager.refreshData() to reset whole content

pagingManager.updateItemAt(newItem: T, position: Int) to update particular item at position

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

dependencies {
    implementation 'com.github.Saba-21:SimplePagingAdapter:0.2'
    implementation 'androidx.paging:paging-runtime-ktx:2.1.1'
}

A sample project which demonstrates sample usage is available in the test module.