Added in API level 1

ListAdapter


interface ListAdapter : Adapter
BaseAdapter

Common base class of common implementation for an Adapter that can be used in both ListView (by implementing the specialized ListAdapter interface) and Spinner (by implementing the specialized SpinnerAdapter interface).

WrapperListAdapter

List adapter that wraps another list adapter.

ArrayAdapter

You can use this adapter to provide views for an AdapterView, Returns a view for each object in a collection of data objects you provide, and can be used with list-based user interface widgets such as ListView or Spinner.

CursorAdapter

Adapter that exposes data from a Cursor to a ListView widget.

HeaderViewListAdapter

ListAdapter used when a ListView has header views.

ResourceCursorAdapter

An easy adapter that creates views defined in an XML file.

SimpleAdapter

An easy adapter to map static data to views defined in an XML file.

SimpleCursorAdapter

An easy adapter to map columns from a cursor to TextViews or ImageViews defined in an XML file.

Extended Adapter that is the bridge between a ListView and the data that backs the list. Frequently that data comes from a Cursor, but that is not required. The ListView can display any data provided that it is wrapped in a ListAdapter.

Summary

Inherited constants
Int IGNORE_ITEM_VIEW_TYPE

An item view type that causes the AdapterView to ignore the item view. For example, this can be used if the client does not want a particular view to be given for conversion in getView(int,android.view.View,android.view.ViewGroup).

Int NO_SELECTION

Public methods
abstract Boolean

Indicates whether all the items in this adapter are enabled.

abstract Boolean
isEnabled(position: Int)

Returns true if the item at the specified position is not a separator.

Inherited functions
Array<CharSequence!>? getAutofillOptions()

Gets a string representation of the adapter data that can help android.service.autofill.AutofillService autofill the view backed by the adapter.

It should only be set (i.e., non-null if the values do not represent PII (Personally Identifiable Information - sensitive data such as email addresses, credit card numbers, passwords, etc...). For example, it's ok to return a list of month names, but not a list of usernames. A good rule of thumb is that if the adapter data comes from static resources, such data is not PII - see android.view.ViewStructure#setDataIsSensitive(boolean) for more info.

Int getCount()

How many items are in the data set represented by this Adapter.

Any! getItem(position: Int)

Get the data item associated with the specified position in the data set.

Long getItemId(position: Int)

Get the row id associated with the specified position in the list.

Int getItemViewType(position: Int)

Get the type of View that will be created by getView for the specified item.

View! getView(position: Int, convertView: View!, parent: ViewGroup!)

Get a View that displays the data at the specified position in the data set. You can either create a View manually or inflate it from an XML layout file. When the View is inflated, the parent View (GridView, ListView...) will apply default layout parameters unless you use android.view.LayoutInflater#inflate(int, android.view.ViewGroup, boolean) to specify a root view and to prevent attachment to the root.

Int getViewTypeCount()

Returns the number of types of Views that will be created by getView. Each type represents a set of views that can be converted in getView. If the adapter always returns the same type of View for all items, this method should return 1.

This method will only be called when the adapter is set on the AdapterView.

Boolean hasStableIds()

Indicates whether the item ids are stable across changes to the underlying data.

Boolean isEmpty()

Unit registerDataSetObserver(observer: DataSetObserver!)

Register an observer that is called when changes happen to the data used by this adapter.

Unit unregisterDataSetObserver(observer: DataSetObserver!)

Unregister an observer that has previously been registered with this adapter via registerDataSetObserver.

Public methods

areAllItemsEnabled

Added in API level 1
abstract fun areAllItemsEnabled(): Boolean

Indicates whether all the items in this adapter are enabled. If the value returned by this method changes over time, there is no guarantee it will take effect. If true, it means all items are selectable and clickable (there is no separator.)

Return
Boolean True if all items are enabled, false otherwise.

See Also

isEnabled

Added in API level 1
abstract fun isEnabled(position: Int): Boolean

Returns true if the item at the specified position is not a separator. (A separator is a non-selectable, non-clickable item). The result is unspecified if position is invalid. An ArrayIndexOutOfBoundsException should be thrown in that case for fast failure.

Parameters
position Int: Index of the item
Return
Boolean True if the item is not a separator