com.hannesdorfmann.adapterdelegates4

Class AbsDelegationAdapter<T>

java.lang.Object

androidx.recyclerview.widget.RecyclerView.Adapter

com.hannesdorfmann.adapterdelegates4.AbsDelegationAdapter<T>

Type Parameters:

T - The type of the datasource / items

Direct Known Subclasses:

ListDelegationAdapter

public abstract class AbsDelegationAdapter<T>
extends androidx.recyclerview.widget.RecyclerView.Adapter

An implementation of an Adapter that already uses a AdapterDelegatesManager and calls the corresponding AdapterDelegatesManager methods from Adapter's method like onCreateViewHolder(ViewGroup, int), onBindViewHolder(RecyclerView.ViewHolder, int) and getItemViewType(int). So everything is already setup for you. You just have to add the AdapterDelegates i.e. in the constructor of a subclass that inheritance from this class:

 
    class MyAdapter extends AbsDelegationAdapter<MyDataSourceType>{
        public MyAdapter(){
            this.delegatesManager.add(new FooAdapterDelegate());
            this.delegatesManager.add(new BarAdapterDelegate());
        }
    }
 
 

or you can pass a already prepared AdapterDelegatesManager via constructor like this:

 
    class MyAdapter extends AbsDelegationAdapter<MyDataSourceType>{
        public MyAdapter(AdapterDelegatesManager manager){
          super(manager)
        }
    }
 
 

Field Summary

Fields

Modifier and Type	Field and Description
protected AdapterDelegatesManager<T>	delegatesManager
protected T	items

Constructor Summary

Constructors

Constructor and Description
AbsDelegationAdapter()
AbsDelegationAdapter(AdapterDelegate<T>... delegates) Adds a list of AdapterDelegates
AbsDelegationAdapter(AdapterDelegatesManager<T> delegatesManager)

Method Summary

Modifier and Type	Method and Description
T	getItems() Get the items / data source of this adapter
int	getItemViewType(int position)
void	onBindViewHolder(androidx.recyclerview.widget.RecyclerView.ViewHolder holder, int position)
void	onBindViewHolder(androidx.recyclerview.widget.RecyclerView.ViewHolder holder, int position, java.util.List payloads)
androidx.recyclerview.widget.RecyclerView.ViewHolder	onCreateViewHolder(android.view.ViewGroup parent, int viewType)
boolean	onFailedToRecycleView(androidx.recyclerview.widget.RecyclerView.ViewHolder holder)
void	onViewAttachedToWindow(androidx.recyclerview.widget.RecyclerView.ViewHolder holder)
void	onViewDetachedFromWindow(androidx.recyclerview.widget.RecyclerView.ViewHolder holder)
void	onViewRecycled(androidx.recyclerview.widget.RecyclerView.ViewHolder holder)
void	setItems(T items) Set the items / data source of this adapter

Methods inherited from class androidx.recyclerview.widget.RecyclerView.Adapter

bindViewHolder, createViewHolder, getItemCount, getItemId, hasObservers, hasStableIds, notifyDataSetChanged, notifyItemChanged, notifyItemChanged, notifyItemInserted, notifyItemMoved, notifyItemRangeChanged, notifyItemRangeChanged, notifyItemRangeInserted, notifyItemRangeRemoved, notifyItemRemoved, onAttachedToRecyclerView, onDetachedFromRecyclerView, registerAdapterDataObserver, setHasStableIds, unregisterAdapterDataObserver

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

delegatesManager

protected AdapterDelegatesManager<T> delegatesManager

items

protected T items

Constructor Detail

AbsDelegationAdapter

public AbsDelegationAdapter()

AbsDelegationAdapter

public AbsDelegationAdapter(@NonNull
                            AdapterDelegatesManager<T> delegatesManager)

AbsDelegationAdapter

public AbsDelegationAdapter(@NonNull
                            AdapterDelegate<T>... delegates)

Adds a list of AdapterDelegates

Parameters:

delegates - Items to add

Since:

4.1.0

Method Detail

onCreateViewHolder

@NonNull
public androidx.recyclerview.widget.RecyclerView.ViewHolder onCreateViewHolder(@NonNull
                                                                                        android.view.ViewGroup parent,
                                                                                        int viewType)

Specified by:

onCreateViewHolder in class androidx.recyclerview.widget.RecyclerView.Adapter

onBindViewHolder

public void onBindViewHolder(@NonNull
                             androidx.recyclerview.widget.RecyclerView.ViewHolder holder,
                             int position)

Specified by:

onBindViewHolder in class androidx.recyclerview.widget.RecyclerView.Adapter

onBindViewHolder

public void onBindViewHolder(@NonNull
                             androidx.recyclerview.widget.RecyclerView.ViewHolder holder,
                             int position,
                             @NonNull
                             java.util.List payloads)

Overrides:

onBindViewHolder in class androidx.recyclerview.widget.RecyclerView.Adapter

getItemViewType

public int getItemViewType(int position)

Overrides:

getItemViewType in class androidx.recyclerview.widget.RecyclerView.Adapter

onViewRecycled

public void onViewRecycled(@NonNull
                           androidx.recyclerview.widget.RecyclerView.ViewHolder holder)

Overrides:

onViewRecycled in class androidx.recyclerview.widget.RecyclerView.Adapter

onFailedToRecycleView

public boolean onFailedToRecycleView(@NonNull
                                     androidx.recyclerview.widget.RecyclerView.ViewHolder holder)

Overrides:

onFailedToRecycleView in class androidx.recyclerview.widget.RecyclerView.Adapter

onViewAttachedToWindow

public void onViewAttachedToWindow(@NonNull
                                   androidx.recyclerview.widget.RecyclerView.ViewHolder holder)

Overrides:

onViewAttachedToWindow in class androidx.recyclerview.widget.RecyclerView.Adapter

onViewDetachedFromWindow

public void onViewDetachedFromWindow(@NonNull
                                     androidx.recyclerview.widget.RecyclerView.ViewHolder holder)

Overrides:

onViewDetachedFromWindow in class androidx.recyclerview.widget.RecyclerView.Adapter

getItems

public T getItems()

Get the items / data source of this adapter

Returns:

The items / data source

setItems

public void setItems(T items)

Set the items / data source of this adapter

Parameters:

items - The items / data source