Added in API level 14

OnActionExpandListener


interface OnActionExpandListener
android.view.MenuItem.OnActionExpandListener

Interface definition for a callback to be invoked when a menu item marked with MenuItem#SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW is expanded or collapsed.

Summary

Public methods
abstract Boolean

Called when a menu item with MenuItem#SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW is collapsed.

abstract Boolean

Called when a menu item with MenuItem#SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW is expanded.

Public methods

onMenuItemActionCollapse

Added in API level 14
abstract fun onMenuItemActionCollapse(item: MenuItem): Boolean

Called when a menu item with MenuItem#SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW is collapsed.

Parameters
item MenuItem: Item that was collapsed This value cannot be null.
Return
Boolean true if the item should collapse, false if collapsing should be suppressed.

onMenuItemActionExpand

Added in API level 14
abstract fun onMenuItemActionExpand(item: MenuItem): Boolean

Called when a menu item with MenuItem#SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW is expanded.

Parameters
item MenuItem: Item that was expanded This value cannot be null.
Return
Boolean true if the item should expand, false if expansion should be suppressed.