appcompat/androidx.appcompat.view.menu/MenuPresenter

MenuPresenter

@RestrictTo(value = LIBRARY_GROUP_PREFIX)
interface MenuPresenter(source)

A MenuPresenter is responsible for building views for a Menu object. It takes over some responsibility from the old style monolithic MenuBuilder class.

Inheritors

Types

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interface Callback
Called by menu implementation to notify another component of open/close events.

Functions

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abstract fun collapseItemActionView(menu: MenuBuilder, item: MenuItemImpl): Boolean
Called when a menu item with a collapsible action view should collapse its action view.
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abstract fun expandItemActionView(menu: MenuBuilder, item: MenuItemImpl): Boolean
Called when a menu item with a collapsible action view should expand its action view.
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abstract fun flagActionItems(): Boolean
Called by Menu implementations to flag items that will be shown as actions.
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abstract fun getId(): Int
Returns an ID for determining how to save/restore instance state.
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abstract fun getMenuView(root: ViewGroup): MenuView
Retrieve a MenuView to display the menu specified in initForMenu.
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abstract fun initForMenu(context: Context, menu: MenuBuilder)
Initializes this presenter for the given context and menu.
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abstract fun onCloseMenu(menu: MenuBuilder, allMenusAreClosing: Boolean)
Called by Menu implementations to indicate that a menu or submenu is closing.
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abstract fun onRestoreInstanceState(state: Parcelable)
Supplies the previously saved instance state to be restored.
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abstract fun onSaveInstanceState(): Parcelable
Returns a Parcelable describing the current state of the presenter.
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abstract fun onSubMenuSelected(subMenu: SubMenuBuilder): Boolean
Called by Menu implementations to indicate that a submenu item has been selected.
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abstract fun setCallback(cb: MenuPresenter.Callback)
Set a callback object that will be notified of menu events related to this specific presentation.
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abstract fun updateMenuView(cleared: Boolean)
Update the menu UI in response to a change.