Summary: Ctors | Methods | Inherited Methods

AdapterListUpdateCallback

Kotlin |Java

public final class AdapterListUpdateCallback
extends Object implements ListUpdateCallback

java.lang.Object
↳	androidx.recyclerview.widget.AdapterListUpdateCallback

ListUpdateCallback that dispatches update events to the given adapter.

See also:

Summary

Public constructors
`AdapterListUpdateCallback(Adapter adapter)` Creates an AdapterListUpdateCallback that will dispatch update events to the given adapter.

Public methods
`void`	`onChanged(int position, int count, Object payload)` Called when `count` number of items are updated at the given position.
`void`	`onInserted(int position, int count)` Called when `count` number of items are inserted at the given position.
`void`	`onMoved(int fromPosition, int toPosition)` Called when an item changes its position in the list.
`void`	`onRemoved(int position, int count)` Called when `count` number of items are removed from the given position.

From class


        
          java.lang.Object

From interface


        
          androidx.recyclerview.widget.ListUpdateCallback

`abstract void`	`onChanged(int position, int count, Object payload)` Called when `count` number of items are updated at the given position.
`abstract void`	`onInserted(int position, int count)` Called when `count` number of items are inserted at the given position.
`abstract void`	`onMoved(int fromPosition, int toPosition)` Called when an item changes its position in the list.
`abstract void`	`onRemoved(int position, int count)` Called when `count` number of items are removed from the given position.

public AdapterListUpdateCallback (Adapter adapter)

Creates an AdapterListUpdateCallback that will dispatch update events to the given adapter.

Parameters
`adapter`	`Adapter`: The Adapter to send updates to.

public void onChanged (int position, 
                int count, 
                Object payload)

Called when count number of items are updated at the given position.

Parameters
`position`	`int`: The position of the item which has been updated.
`count`	`int`: The number of items which has changed.
`payload`	`Object`

public void onInserted (int position, 
                int count)

Called when count number of items are inserted at the given position.

Parameters
`position`	`int`: The position of the new item.
`count`	`int`: The number of items that have been added.

public void onMoved (int fromPosition, 
                int toPosition)

Called when an item changes its position in the list.

Parameters
`fromPosition`	`int`: The previous position of the item before the move.
`toPosition`	`int`: The new position of the item.

public void onRemoved (int position, 
                int count)

Called when count number of items are removed from the given position.

Parameters
`position`	`int`: The position of the item which has been removed.
`count`	`int`: The number of items which have been removed.