recyclerview/androidx.recyclerview.widget/RecyclerView/ViewHolder

ViewHolder

abstract class ViewHolder(source)

A ViewHolder describes an item view and metadata about its place within the RecyclerView.

Adapter implementations should subclass ViewHolder and add fields for caching potentially expensive findViewById results.

While LayoutParams belong to the LayoutManager, ViewHolders belong to the adapter. Adapters should feel free to use their own custom ViewHolder implementations to store data that makes binding view contents easier. Implementations should assume that individual item views will hold strong references to ViewHolder objects and that RecyclerView instances may hold strong references to extra off-screen item views for caching purposes

Constructors

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constructor(@NonNull itemView: View)

Properties

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Functions

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fun getAbsoluteAdapterPosition(): Int
Returns the Adapter position of the item represented by this ViewHolder with respect to the RecyclerView's Adapter.
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fun getBindingAdapterPosition(): Int
Returns the Adapter position of the item represented by this ViewHolder with respect to the Adapter that bound it.
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fun getItemId(): Long
Returns The itemId represented by this ViewHolder.
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fun getLayoutPosition(): Int
Returns the position of the ViewHolder in terms of the latest layout pass.
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fun getOldPosition(): Int
When LayoutManager supports animations, RecyclerView tracks 3 positions for ViewHolders to perform animations.
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fun getPosition(): Int
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fun setIsRecyclable(recyclable: Boolean)
Informs the recycler whether this item can be recycled.
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open fun toString(): String