Callback

Kotlin |Java

interface Callback

android.view.ActionMode.Callback

Known Direct Subclasses

AbsListView.MultiChoiceModeListener, ActionMode.Callback2

AbsListView.MultiChoiceModeListener	A MultiChoiceModeListener receives events for `AbsListView.CHOICE_MODE_MULTIPLE_MODAL`.
ActionMode.Callback2	Extension of `ActionMode.Callback` to provide content rect information.

Callback interface for action modes. Supplied to View.startActionMode(Callback), a Callback configures and handles events raised by a user's interaction with an action mode.

An action mode's lifecycle is as follows:

Callback.onCreateActionMode(ActionMode, Menu) once on initial creation
Callback.onPrepareActionMode(ActionMode, Menu) after creation and any time the ActionMode is invalidated
Callback.onActionItemClicked(ActionMode, MenuItem) any time a contextual action button is clicked
Callback.onDestroyActionMode(ActionMode) when the action mode is closed

Summary

Public methods
abstract Boolean	`onActionItemClicked(mode: ActionMode!, item: MenuItem!)` Called to report a user click on an action button.
abstract Boolean	`onCreateActionMode(mode: ActionMode!, menu: Menu!)` Called when action mode is first created.
abstract Unit	`onDestroyActionMode(mode: ActionMode!)` Called when an action mode is about to be exited and destroyed.
abstract Boolean	`onPrepareActionMode(mode: ActionMode!, menu: Menu!)` Called to refresh an action mode's action menu whenever it is invalidated.

Public methods

onActionItemClicked

Added in API level 11

abstract fun onActionItemClicked(
    mode: ActionMode!, 
    item: MenuItem!
): Boolean

Called to report a user click on an action button.

Parameters
`mode`	ActionMode!: The current ActionMode
`item`	MenuItem!: The item that was clicked

Return
`Boolean`	true if this callback handled the event, false if the standard MenuItem invocation should continue.

onCreateActionMode

Added in API level 11

abstract fun onCreateActionMode(
    mode: ActionMode!, 
    menu: Menu!
): Boolean

Called when action mode is first created. The menu supplied will be used to generate action buttons for the action mode.

Parameters
`mode`	ActionMode!: ActionMode being created
`menu`	Menu!: Menu used to populate action buttons

Return
`Boolean`	true if the action mode should be created, false if entering this mode should be aborted.

onDestroyActionMode

Added in API level 11

abstract fun onDestroyActionMode(mode: ActionMode!): Unit

Called when an action mode is about to be exited and destroyed.

Parameters
`mode`	ActionMode!: The current ActionMode being destroyed

onPrepareActionMode

Added in API level 11

abstract fun onPrepareActionMode(
    mode: ActionMode!, 
    menu: Menu!
): Boolean

Called to refresh an action mode's action menu whenever it is invalidated.

Parameters
`mode`	ActionMode!: ActionMode being prepared
`menu`	Menu!: Menu used to populate action buttons

Return
`Boolean`	true if the menu or action mode was updated, false otherwise.