ItemBridgeAdapter

Kotlin |Java

open class ItemBridgeAdapter : RecyclerView.Adapter<RecyclerView.ViewHolder!>, FacetProviderAdapter

kotlin.Any
↳	androidx.recyclerview.widget.RecyclerView.Adapter<androidx.recyclerview.widget.RecyclerView.ViewHolder>
	↳	androidx.leanback.widget.ItemBridgeAdapter

Bridge from Presenter to RecyclerView.Adapter. Public to allow use by third party Presenters.

Summary

Nested classes
open	`AdapterListener` Interface for listening to ViewHolder operations.
open	`ViewHolder` ViewHolder for the ItemBridgeAdapter.
abstract	`Wrapper` Interface for wrapping a view created by a Presenter into another view.

Public constructors
`<init>(adapter: ObjectAdapter!, presenterSelector: PresenterSelector!)`
`<init>(adapter: ObjectAdapter!)`
`<init>()`

Public methods
open Unit	`clear()` Clears the adapter.
open FacetProvider!	`getFacetProvider(type: Int)`
open Int	`getItemCount()`
open Long	`getItemId(position: Int)`
open Int	`getItemViewType(position: Int)`
open ArrayList<Presenter!>!	`getPresenterMapper()` Returns the presenter mapper array.
open ItemBridgeAdapter.Wrapper!	`getWrapper()` Returns the `Wrapper`.
Unit	`onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int)`
Unit	`onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int, payloads: MutableList<Any?>)`
RecyclerView.ViewHolder	`onCreateViewHolder(parent: ViewGroup, viewType: Int)` `View.OnFocusChangeListener` that assigned in `Presenter#onCreateViewHolder(ViewGroup)` may be chained, user should never change `View.OnFocusChangeListener` after that.
Boolean	`onFailedToRecycleView(holder: RecyclerView.ViewHolder)`
Unit	`onViewAttachedToWindow(holder: RecyclerView.ViewHolder)`
Unit	`onViewDetachedFromWindow(holder: RecyclerView.ViewHolder)`
Unit	`onViewRecycled(holder: RecyclerView.ViewHolder)`
open Unit	`setAdapter(adapter: ObjectAdapter!)` Sets the `ObjectAdapter`.
open Unit	`setAdapterListener(listener: ItemBridgeAdapter.AdapterListener!)` Sets the AdapterListener.
open Unit	`setPresenter(presenterSelector: PresenterSelector!)` Changes Presenter that creates and binds the view.
open Unit	`setPresenterMapper(presenters: ArrayList<Presenter!>!)` Sets the presenter mapper array.
open Unit	`setWrapper(wrapper: ItemBridgeAdapter.Wrapper!)` Sets the `Wrapper`.

Protected methods
open Unit	`onAddPresenter(presenter: Presenter!, type: Int)` Called when presenter is added to Adapter.
open Unit	`onAttachedToWindow(viewHolder: ItemBridgeAdapter.ViewHolder!)` Called when ViewHolder has been attached to window.
open Unit	`onBind(viewHolder: ItemBridgeAdapter.ViewHolder!)` Called when ViewHolder has been bound to data.
open Unit	`onCreate(viewHolder: ItemBridgeAdapter.ViewHolder!)` Called when ViewHolder is created.
open Unit	`onDetachedFromWindow(viewHolder: ItemBridgeAdapter.ViewHolder!)` Called when ViewHolder has been detached from window.
open Unit	`onUnbind(viewHolder: ItemBridgeAdapter.ViewHolder!)` Called when ViewHolder has been unbound from data.

Inherited functions

From class Adapter

`Unit`	`bindViewHolder(@NonNull holder: VH, position: Int)` This method internally calls `onBindViewHolder(ViewHolder, int)` to update the `ViewHolder` contents with the item at the given position and also sets up some private fields to be used by RecyclerView. Adapters that merge other adapters should use `bindViewHolder(ViewHolder, int)` when calling nested adapters so that RecyclerView can track which adapter bound the `ViewHolder` to return the correct position from `ViewHolder#getBindingAdapterPosition()` method. They should also override the `findRelativeAdapterPositionIn(Adapter, ViewHolder, int)` method.
`VH`	`createViewHolder(@NonNull parent: ViewGroup, viewType: Int)` This method calls `onCreateViewHolder(ViewGroup, int)` to create a new `ViewHolder` and initializes some private fields to be used by RecyclerView.
`Int`	`findRelativeAdapterPositionIn(@NonNull adapter: RecyclerView.Adapter<out RecyclerView.ViewHolder!>, @NonNull viewHolder: RecyclerView.ViewHolder, localPosition: Int)` Returns the position of the given `ViewHolder` in the given `Adapter`. If the given `Adapter` is not part of this `Adapter`, `RecyclerView#NO_POSITION` is returned.
`RecyclerView.Adapter.StateRestorationPolicy`	`getStateRestorationPolicy()` Returns when this Adapter wants to restore the state.
`Boolean`	`hasObservers()` Returns true if one or more observers are attached to this adapter.
`Boolean`	`hasStableIds()` Returns true if this adapter publishes a unique `long` value that can act as a key for the item at a given position in the data set. If that item is relocated in the data set, the ID returned for that item should be the same.
`Unit`	`notifyDataSetChanged()` Notify any registered observers that the data set has changed. There are two different classes of data change events, item changes and structural changes. Item changes are when a single item has its data updated but no positional changes have occurred. Structural changes are when items are inserted, removed or moved within the data set. This event does not specify what about the data set has changed, forcing any observers to assume that all existing items and structure may no longer be valid. LayoutManagers will be forced to fully rebind and relayout all visible views. `RecyclerView` will attempt to synthesize visible structural change events for adapters that report that they have `stable IDs` when this method is used. This can help for the purposes of animation and visual object persistence but individual item views will still need to be rebound and relaid out. If you are writing an adapter it will always be more efficient to use the more specific change events if you can. Rely on `notifyDataSetChanged()` as a last resort.
`Unit`	`notifyItemChanged(position: Int)` Notify any registered observers that the item at `position` has changed. Equivalent to calling `notifyItemChanged(position, null);`. This is an item change event, not a structural change event. It indicates that any reflection of the data at `position` is out of date and should be updated. The item at `position` retains the same identity.
`Unit`	`notifyItemChanged(`