react-native-reanimated
Version:
More powerful alternative to Animated library for React Native.
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TypeScript
import type { IWorkletEventHandler, ReanimatedEvent } from './commonTypes';
/** Worklet to provide as an argument to `useEvent` hook. */
export type EventHandler<Event extends object, Context extends Record<string, unknown> = never> = (event: ReanimatedEvent<Event>, context?: Context) => void;
export type EventHandlerProcessed<Event extends object, Context extends Record<string, unknown> = never> = (event: Event, context?: Context) => void;
export type EventHandlerInternal<Event extends object> = {
workletEventHandler: IWorkletEventHandler<Event>;
};
/**
* Lets you run a function whenever a specified native event occurs.
*
* @param handler - A function that receives an event object with event data -
* {@link EventHandler}.
* @param eventNames - An array of event names the `handler` callback will react
* to.
* @param rebuild - Whether the event handler should be rebuilt. Defaults to
* `false`.
* @returns A function that will be called when the event occurs -
* {@link EventHandlerProcessed}.
* @see https://docs.swmansion.com/react-native-reanimated/docs/advanced/useEvent
*/
export declare function useEvent<Event extends object, Context extends Record<string, unknown> = never>(handler: EventHandler<Event, Context>, eventNames?: string[], rebuild?: boolean): EventHandlerProcessed<Event, Context>;
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