Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | 332x 332x 1596x 1596x 1596x 1251x 1x 1x 1251x 1251x | import React from "react";
import {
Platform,
ScrollView as ScrollViewRaw,
findNodeHandle,
} from "react-native";
export type ScrollHandle = {
getHandle: () => number | null;
getRef: () => ScrollViewRaw | null;
};
export const ScrollContext = React.createContext<ScrollHandle>({
getHandle: () => 0,
getRef: () => null,
});
export type Props = {
children?: React.ReactNode;
ref?: React.RefObject<ScrollHandle | null>;
} & Omit<React.ComponentProps<typeof ScrollViewRaw>, "children" | "ref">;
export const ScrollView: React.FC<Props> = ({ children, ref, ...props }) => {
const scrollRef = React.useRef<ScrollViewRaw>(null);
const context = React.useMemo<React.ContextType<typeof ScrollContext>>(() => {
if (Platform.OS === "web") {
return {
getHandle: () => scrollRef.current as unknown as number,
getRef: () => scrollRef.current,
};
}
return {
getHandle: () => findNodeHandle(scrollRef.current),
getRef: () => scrollRef.current,
};
}, []);
React.useImperativeHandle(ref, () => context, [context]);
return (
<ScrollViewRaw ref={scrollRef} {...props}>
<ScrollContext value={context}>{children}</ScrollContext>
</ScrollViewRaw>
);
};
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