universum.studios.android.widget.adapter

Interface DataSetAdapter<Item>

Type Parameters:

Item - Model that represents a data structure of the adapter's data set.

All Superinterfaces:

DataSet<Item>

All Known Subinterfaces:

ItemsAdapter<Item>

All Known Implementing Classes:

BaseAdapter, BaseRecyclerAdapter, BaseSpinnerAdapter, SimpleAdapter, SimpleRecyclerAdapter, SimpleSpinnerAdapter

public interface DataSetAdapter<Item>
extends DataSet<Item>

A convenience interface specifying common API for adapters with data set.

Author:

Martin Albedinsky

Field Summary

Fields inherited from interface universum.studios.android.widget.adapter.DataSet

NO_ID, NO_POSITION

Method Summary

Modifier and Type	Method and Description
boolean	hasStableIds() Returns a boolean flag indicating whether the data set of this adapter has stable ids or not.
boolean	isEnabled(int position) Returns a boolean flag indicating whether an item at the specified position is enabled or not.
void	restoreInstanceState(Parcelable savedState) Restores the previous state, saved via saveInstanceState(), of this adapter.
Parcelable	saveInstanceState() Saves the current state of this adapter.

Methods inherited from interface universum.studios.android.widget.adapter.DataSet

getItem, getItemCount, getItemId, hasItemAt, isEmpty, registerOnDataChangeListener, registerOnDataSetActionListener, registerOnDataSetListener, unregisterOnDataChangeListener, unregisterOnDataSetActionListener, unregisterOnDataSetListener

Method Detail

isEnabled

boolean isEnabled(int position)

Returns a boolean flag indicating whether an item at the specified position is enabled or not.

Parameters:

position - The position of item to check.

Returns:

True if the item is enabled, false otherwise.

hasStableIds

boolean hasStableIds()

Returns a boolean flag indicating whether the data set of this adapter has stable ids or not.

Returns:

True if the data set has stable ids so each position has its unique id, false otherwise.

See Also:

DataSet.getItemId(int)

saveInstanceState

@NonNull
Parcelable saveInstanceState()

Saves the current state of this adapter.

If you decide to override this method, do not forget to call super.saveInstanceState() and pass the obtained super state to the corresponding constructor of your saved state implementation to ensure the state of all classes along the chain is properly saved.

Returns:

Saved state of this adapter or an empty state if this adapter does not need to save its state.

restoreInstanceState

void restoreInstanceState(@NonNull
                          Parcelable savedState)

Restores the previous state, saved via saveInstanceState(), of this adapter.

If you decide to override this method, do not forget to call super.restoreInstanceState(Parcelable) and pass there the parent state obtained from your saved state implementation to ensure the state of all classes along the chain is properly restored.

Parameters:

savedState - Should be the same state as obtained via saveInstanceState() before.