Palex-Adapter

Description

Simple Android Library Built to Make RecyclerView Adapters Easly to Build with Defined Multiple Types of Adapters

This Library built with Pre Loaded Adapters and Methods that Commonly Used in one library

Adapters

All Supported Types in Palex Adapter

1. Multiple Views Type
2. Single View Type
3. Single Item Stable Id Type
4. Multiple Stable Id View Type

Info

This Library Built with Kotlin Languages Based on RecyclerView Library (1.2.1) And Supported By View LayoutInflater To Bind ViewHolders

1. Single Item Adapter (2 Types) You Need to Build Class To Override The Required Methods in Adapter to Bind the Views with Data

2. Multiple Item Adapter (2 Types) You Don't Need to Create Class to Override Anything Based on Adapter But you need to Make ItemView for Each Item To Bind the Views with Data

Installation

Gradle Root File

allprojects {
    repositories {
        mavenCentral()
    }
}

dependency {
    implementation "com.yazantarifi:palex-android:1.0.1"
}

Example

1. Single Item Adapter

Create Item

data class ItemExample(
    val title: String,
    val description: String
): PalexSingleItem

Implement Adapter Class To Override The Required Methods

class ItemExampleAdapter constructor(
    items: ArrayList<ItemExample>,
    context: Context
): PalexSingleItemAdapter<ItemExample, ItemExampleViewHolder>(context, R.layout.row_single_item, items) {

    override fun onBindItem(
        item: ItemExample,
        context: Context,
        position: Int,
        viewHolder: ItemExampleViewHolder
    ) {
        viewHolder.description?.text = item.description
        viewHolder.postText?.text = item.title
        viewHolder.position?.text = "Position : $position"

        // Used to Add Ripple Click Effect on Each Item
        addClickEffectItem(viewHolder.itemView)
    }

    override fun getViewHolder(context: Context): ItemExampleViewHolder {
        return ItemExampleViewHolder(getLayoutInstance(context))
    }

}

Create ViewHolder to Adapter

class ItemExampleViewHolder constructor(view: View): RecyclerView.ViewHolder(view) {
    val postText: TextView? = view.postText
    val description: TextView? = view.description
    val position: TextView? = view.position
}

Create Adapter Instance

private val adapterInstance by lazy {
        ItemExampleAdapter(getItems(), this@SingleItemExampleScreen)
}

Add Adapter To RecyclerView

singleItemRecyclerView?.apply {
    PalexRecyclerViewInit.initVerticalView(this@SingleItemExampleScreen, this, adapterInstance)
    adapterInstance.addRecyclerViewInstance(this@apply)
    adapterInstance.addPaginationListener(object: PalexAdapterPaginationCallback {
         override fun onNextPageRequest() {
             adapterInstance.addItems(getItems())
         }
    })
}

Multi Items Example

2. Multiple Items Views Adapter Example

You Need to Create The Item That Will Start Binding in Each RecyclerView Item

data class Post(
    var id: Long = 0,
    var title: String = "",
    var description: String = ""
): PalexItem {

    companion object {
        const val TEXT = 1
        const val GOOGLE_ADS = 2
        const val SINGLE_IMAGE = 3
    }

    override fun getItemViewType(): Int {
        return type
    }

}

Create Base ViewHolder

open class PostViewHolder constructor(view: View): RecyclerView.ViewHolder(view)

Now Create ItemView for Each View Type in Posts

1. First Supported ItemView

class PostImageItemView: PalexItemView<PalexItem, PostImageItemView.ViewHolder>() {
    override fun onBindViewItem(
        item: PalexItem,
        position: Int,
        viewHolder: ViewHolder,
        context: Context,
        pool: RecyclerView.RecycledViewPool?
    ) {
        (item as? Post)?.let {
            viewHolder.title?.text = it.title
            viewHolder.image?.let { it1 ->
                Picasso.get().load(it.singleImage).into(it1)
            }
        }
    }

    override fun onBindViewHolder(context: Context): ViewHolder {
        return ViewHolder(getLayout(context))
    }

    override fun getLayoutResource(): Int {
        return R.layout.row_image_post
    }

    override fun getViewType(): Int {
        return Post.SINGLE_IMAGE
    }

    inner class ViewHolder(view: View): RecyclerView.ViewHolder(view) {
        val title: TextView? = view.title
        val image: ImageView? = view.loadPostImage
    }
}

2. Second Supported ItemView

class PostTextItemView: PalexItemView<PalexItem, PostTextItemView.ViewHolder>() {

    inner class ViewHolder(view: View): RecyclerView.ViewHolder(view) {
        val description: TextView? = view.description
        val postText: TextView? = view.postText
    }

    override fun onBindViewItem(item: PalexItem, position: Int, viewHolder: ViewHolder, context: Context, pool: RecyclerView.RecycledViewPool?) {
        (item as? Post?)?.let {
            viewHolder.description?.text = it.description
            viewHolder.postText?.text = it.title
        }
    }

    override fun onBindViewHolder(context: Context): ViewHolder {
        return ViewHolder(getLayout(context))
    }

    override fun getLayoutResource(): Int {
        return R.layout.row_post_text
    }

    override fun getViewType(): Int {
        return Post.TEXT
    }

}

3. Third Supported ItemView

class GoogleAdsItemView: PalexItemView<PalexItem, GoogleAdsItemView.ViewHolder>() {

    override fun onBindViewItem(
        item: PalexItem,
        position: Int,
        viewHolder: ViewHolder,
        context: Context,
        pool: RecyclerView.RecycledViewPool?
    ) {
        (item as? Post)?.let {
            viewHolder.adManagerAdView?.let { it1 -> loadBannerItem(it1, it) }
        }
    }

    private fun loadBannerItem(itemView: AdManagerAdView, item: Post) {
        itemView.setAdSizes(AdSize.BANNER)
        item.adView = itemView
    }

    override fun onBindViewHolder(context: Context): ViewHolder {
        return ViewHolder(getLayout(context))
    }

    override fun getLayoutResource(): Int {
        return R.layout.row_ads_item
    }

    override fun getViewType(): Int {
        return Post.GOOGLE_ADS
    }

    inner class ViewHolder(view: View): RecyclerView.ViewHolder(view) {
        val adManagerAdView: AdManagerAdView? = view.adManagerAdView
    }
}

Create ItemView Factory To Add All of them To Adapter

class PostsItemViewFactory: PalexItemViewsFactory<PalexItem>() {
    override fun getSupportedViewTypes(): ArrayList<PalexItemView<PalexItem, *>> {
        return ArrayList<PalexItemView<PalexItem, *>>().apply {
            this.add(PostTextItemView())
            this.add(GoogleAdsItemView())
            this.add(PostImageItemView())
        }
    }
}

Create Adapter Instance and Add All of Information to Adapter

adapterInstance = PalexAdapter<PalexItem, PostViewHolder>(getPostsItems(), requireContext(), pool).apply {
    this.addErrorsCallback(this@MultiViewFragmentExample)
    this.setViewTypesFactory(PostsItemViewFactory())
    this.setHasStableIds(true)

    adapterInstance?.addRecyclerViewInstance(recyclerView)
    adapterInstance?.addPaginationListener(object: PalexAdapterPaginationCallback {
        override fun onNextPageRequest() {
              println("III on New Page Request")
              adapterInstance?.addItems(getItems())
        }
    })
}

Assign Adapter To RecyclerView

multiViewsRecyclerView?.apply {
    this.setRecycledViewPool(pool)
    getPostsAdapter(this)?.let {
          PalexRecyclerViewInit.initVerticalView(requireContext(), this, it)
    }
}

Supported Features

1. Pagination Endless of RecyclerView
2. Add Ripple Effect On Click
3. Add Clickable Ids for All Items Via Click Factory
4. Replace, Add Items to Adapter
5. Vertical Divider
6. Error Listener To Listen to All Errors in One Callback
7. Animated Remove Item in Adapter, ItemView

Next Features

1. Support Data Binding ItemViews
2. Support View Binding ItemViews
3. Generate ViewHolders In ItemViews
4. Support Loading Item, Page Size for Pagination

License

Copyright (C) 2021 Palex Adapter is An Open Source Library (Licensed under the MIT License)