SimpleAdapter

Kotlin |Java

open class SimpleAdapter : BaseAdapter, Filterable, ThemedSpinnerAdapter

kotlin.Any
↳	android.widget.BaseAdapter
	↳	android.widget.SimpleAdapter

An easy adapter to map static data to views defined in an XML file. You can specify the data backing the list as an ArrayList of Maps. Each entry in the ArrayList corresponds to one row in the list. The Maps contain the data for each row. You also specify an XML file that defines the views used to display the row, and a mapping from keys in the Map to specific views. Binding data to views occurs in two phases. First, if a android.widget.SimpleAdapter.ViewBinder is available, ViewBinder.setViewValue(android.view.View, Object, String) is invoked. If the returned value is true, binding has occurred. If the returned value is false, the following views are then tried in order:

A view that implements Checkable (e.g. CheckBox). The expected bind value is a boolean.
TextView. The expected bind value is a string and setViewText(android.widget.TextView,java.lang.String) is invoked.
ImageView. The expected bind value is a resource id or a string and setViewImage(android.widget.ImageView,int) or setViewImage(android.widget.ImageView,java.lang.String) is invoked.

If no appropriate binding can be found, an IllegalStateException is thrown.

Summary

Nested classes
abstract	`ViewBinder` This class can be used by external clients of SimpleAdapter to bind values to views.

Public constructors
`SimpleAdapter(context: Context!, data: MutableList<out MutableMap<String!, *>!>!, resource: Int, from: Array<String!>!, to: IntArray!)` Constructor

Public methods
open Int	`getCount()`
open View!	`getDropDownView(position: Int, convertView: View!, parent: ViewGroup!)`
open Resources.Theme?	`getDropDownViewTheme()`
open Filter!	`getFilter()`
open Any!	`getItem(position: Int)`
open Long	`getItemId(position: Int)`
open View!	`getView(position: Int, convertView: View!, parent: ViewGroup!)`
open SimpleAdapter.ViewBinder!	`getViewBinder()` Returns the `ViewBinder` used to bind data to views.
open Unit	`setDropDownViewResource(resource: Int)` Sets the layout resource to create the drop down views.
open Unit	`setDropDownViewTheme(theme: Resources.Theme?)` Sets the `android.content.res.Resources.Theme` against which drop-down views are inflated.
open Unit	`setViewBinder(viewBinder: SimpleAdapter.ViewBinder!)` Sets the binder used to bind data to views.
open Unit	`setViewImage(v: ImageView!, value: Int)` Called by bindView() to set the image for an ImageView but only if there is no existing ViewBinder or if the existing ViewBinder cannot handle binding to an ImageView.
open Unit	`setViewImage(v: ImageView!, value: String!)` Called by bindView() to set the image for an ImageView but only if there is no existing ViewBinder or if the existing ViewBinder cannot handle binding to an ImageView.
open Unit	`setViewText(v: TextView!, text: String!)` Called by bindView() to set the text for a TextView but only if there is no existing ViewBinder or if the existing ViewBinder cannot handle binding to a TextView.

Inherited functions

From class BaseAdapter

`Boolean`	`areAllItemsEnabled()`
`Array<CharSequence!>?`	`getAutofillOptions()`
`Int`	`getItemViewType(position: Int)`
`Int`	`getViewTypeCount()`
`Boolean`	`hasStableIds()`
`Boolean`	`isEmpty()`
`Boolean`	`isEnabled(position: Int)`
`Unit`	`notifyDataSetChanged()` Notifies the attached observers that the underlying data has been changed and any View reflecting the data set should refresh itself.
`Unit`	`notifyDataSetInvalidated()` Notifies the attached observers that the underlying data is no longer valid or available. Once invoked this adapter is no longer valid and should not report further data set changes.
`Unit`	`registerDataSetObserver(observer: DataSetObserver!)`
`Unit`	`setAutofillOptions(vararg options: CharSequence!)` Sets the value returned by `getAutofillOptions()`
`Unit`	`unregisterDataSetObserver(observer: DataSetObserver!)`

Public constructors

SimpleAdapter

Added in API level 1

SimpleAdapter(
    context: Context!, 
    data: MutableList<out MutableMap<String!, *>!>!, 
    resource: Int, 
    from: Array<String!>!, 
    to: IntArray!)

Constructor

Parameters
`context`	Context!: The context where the View associated with this SimpleAdapter is running
`data`	MutableList<out MutableMap<String!, *>!>!: A List of Maps. Each entry in the List corresponds to one row in the list. The Maps contain the data for each row, and should include all the entries specified in "from"
`resource`	Int: Resource identifier of a view layout that defines the views for this list item. The layout file should include at least those named views defined in "to"
`from`	Array<String!>!: A list of column names that will be added to the Map associated with each item.
`to`	IntArray!: The views that should display column in the "from" parameter. These should all be TextViews. The first N views in this list are given the values of the first N columns in the from parameter.

Public methods

getCount

Added in API level 1

open fun getCount(): Int

Return
`Int`	Count of items.

See Also

android.widget.Adapter#getCount()

getDropDownView

Added in API level 1

open fun getDropDownView(
    position: Int, 
    convertView: View!, 
    parent: ViewGroup!
): View!

Parameters
`position`	Int: index of the item whose view we want.
`convertView`	View!: the old view to reuse, if possible. Note: You should check that this view is non-null and of an appropriate type before using. If it is not possible to convert this view to display the correct data, this method can create a new view.
`parent`	ViewGroup!: the parent that this view will eventually be attached to

Return
`View!`	a `android.view.View` corresponding to the data at the specified position.

getDropDownViewTheme

Added in API level 23

open fun getDropDownViewTheme(): Resources.Theme?

Return
`Resources.Theme?`	the `Resources.Theme` against which drop-down views are inflated, or `null` if one has not been explicitly set

getFilter

Added in API level 1

open fun getFilter(): Filter!

Return
`Filter!`	a filter used to constrain data

getItem

Added in API level 1

open fun getItem(position: Int): Any!

Parameters
`position`	Int: Position of the item whose data we want within the adapter's data set.

Return
`Any!`	The data at the specified position.

See Also

android.widget.Adapter#getItem(int)

getItemId

Added in API level 1

open fun getItemId(position: Int): Long

Parameters
`position`	Int: The position of the item within the adapter's data set whose row id we want.

Return
`Long`	The id of the item at the specified position.

See Also

android.widget.Adapter#getItemId(int)

getView

Added in API level 1

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

Parameters
`position`	Int: The position of the item within the adapter's data set of the item whose view we want.
`convertView`	View!: The old view to reuse, if possible. Note: You should check that this view is non-null and of an appropriate type before using. If it is not possible to convert this view to display the correct data, this method can create a new view. Heterogeneous lists can specify their number of view types, so that this View is always of the right type (see `getViewTypeCount()` and `getItemViewType(int)`).
`parent`	ViewGroup!: The parent that this view will eventually be attached to

Return
`View!`	A View corresponding to the data at the specified position.

See Also

android.widget.Adapter#getView(int, View, ViewGroup)

getViewBinder

Added in API level 1

open fun getViewBinder(): SimpleAdapter.ViewBinder!

Returns the ViewBinder used to bind data to views.

Return
`SimpleAdapter.ViewBinder!`	a ViewBinder or null if the binder does not exist

See Also

#setViewBinder(android.widget.SimpleAdapter.ViewBinder)

setDropDownViewResource

Added in API level 1

open fun setDropDownViewResource(resource: Int): Unit

Sets the layout resource to create the drop down views.

Parameters
`resource`	Int: the layout resource defining the drop down views

See Also

#getDropDownView(int, android.view.View, android.view.ViewGroup)

setDropDownViewTheme

Added in API level 23

open fun setDropDownViewTheme(theme: Resources.Theme?): Unit

Sets the android.content.res.Resources.Theme against which drop-down views are inflated.

By default, drop-down views are inflated against the theme of the Context passed to the adapter's constructor.

Parameters
`theme`	Resources.Theme?: the theme against which to inflate drop-down views or `null` to use the theme from the adapter's context

See Also

#getDropDownView(int, View, ViewGroup)

setViewBinder

Added in API level 1

open fun setViewBinder(viewBinder: SimpleAdapter.ViewBinder!): Unit

Sets the binder used to bind data to views.

Parameters
`viewBinder`	SimpleAdapter.ViewBinder!: the binder used to bind data to views, can be null to remove the existing binder

See Also

#getViewBinder()

setViewImage

Added in API level 1

open fun setViewImage(
    v: ImageView!, 
    value: Int
): Unit

Called by bindView() to set the image for an ImageView but only if there is no existing ViewBinder or if the existing ViewBinder cannot handle binding to an ImageView. This method is called instead of setViewImage(android.widget.ImageView,java.lang.String) if the supplied data is an int or Integer.

Parameters
`v`	ImageView!: ImageView to receive an image
`value`	Int: the value retrieved from the data set

See Also

#setViewImage(ImageView, String)

setViewImage

Added in API level 1

open fun setViewImage(
    v: ImageView!, 
    value: String!
): Unit

Called by bindView() to set the image for an ImageView but only if there is no existing ViewBinder or if the existing ViewBinder cannot handle binding to an ImageView. By default, the value will be treated as an image resource. If the value cannot be used as an image resource, the value is used as an image Uri. This method is called instead of setViewImage(android.widget.ImageView,int) if the supplied data is not an int or Integer.

Parameters
`v`	ImageView!: ImageView to receive an image
`value`	String!: the value retrieved from the data set

See Also

#setViewImage(ImageView, int)

setViewText

Added in API level 1

open fun setViewText(
    v: TextView!, 
    text: String!
): Unit

Called by bindView() to set the text for a TextView but only if there is no existing ViewBinder or if the existing ViewBinder cannot handle binding to a TextView.

Parameters
`v`	TextView!: TextView to receive text
`text`	String!: the text to be set for the TextView