OnActionExpandListener

Kotlin |Java

interface OnActionExpandListener

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

Summary

Public methods
abstract Boolean	`onMenuItemActionCollapse(item: MenuItem!)` Called when a menu item with `SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW` is collapsed.
abstract Boolean	`onMenuItemActionExpand(item: MenuItem!)` Called when a menu item with `SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW` is expanded.

abstract fun onMenuItemActionCollapse(item: MenuItem!): Boolean

Called when a menu item with SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW is collapsed.

Parameters
`item`	MenuItem!: Item that was collapsed

Return
`Boolean`	true if the item should collapse, false if collapsing should be suppressed.

abstract fun onMenuItemActionExpand(item: MenuItem!): Boolean

Called when a menu item with SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW is expanded.

Parameters
`item`	MenuItem!: Item that was expanded

Return
`Boolean`	true if the item should expand, false if expansion should be suppressed.