core/androidx.core.view/[main]KeyEventDispatcher

KeyEventDispatcher

@RestrictTo(value = RestrictTo.Scope.LIBRARY_GROUP_PREFIX)
open class KeyEventDispatcher(source)

Allows dependent components to enable full KeyEvent dispatch compatibility in core. To use this, implement Component and call the dispatch methods at appropriate times. This must be used for some core compatibility features to function fully.

Types

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interface Component
Implement this in any component that dispatches KeyEvents.

Functions

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open fun dispatchBeforeHierarchy(@NonNull root: View, @NonNull event: KeyEvent): Boolean
Call this before dispatching a KeyEvent to the view hierarchy.
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open fun dispatchKeyEvent(@NonNull component: KeyEventDispatcher.Component, @Nullable root: View, @Nullable callback: Window.Callback, @NonNull event: KeyEvent): Boolean
Call this when dispatching a key event.