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fix(example): retain animation resources and current selection callbacks #1134

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fix(example): retain animation resources and current selection callbacks #1134

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23 changes: 9 additions & 14 deletions example/src/hook/useNavigationPanel.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -21,22 +21,20 @@ const getBasePages = (pages: number) =>

export function useNavigationPanel(
pagesAmount: number = 10,
onPageSelectedCallback: (position: number) => void = () => {}
onPageSelectedCallback?: (position: number) => void
) {
const ref = useRef<PagerView>(null);
const [pages, setPages] = useState<CreatePage[]>(
useMemo(() => getBasePages(pagesAmount), [pagesAmount])
);
const [pages, setPages] = useState<CreatePage[]>(() => getBasePages(pagesAmount));
const [activePage, setActivePage] = useState(0);
const [isAnimated, setIsAnimated] = useState(true);
const [overdragEnabled, setOverdragEnabled] = useState(false);
const [scrollEnabled, setScrollEnabled] = useState(true);
const [scrollState, setScrollState] = useState('idle');
const [logs, setLogs] = useState<EventLog[]>([]);
const [progress, setProgress] = useState({ position: 0, offset: 0 });
const onPageScrollOffset = useRef(new Animated.Value(0)).current;
const onPageScrollPosition = useRef(new Animated.Value(0)).current;
const onPageSelectedPosition = useRef(new Animated.Value(0)).current;
const [onPageScrollOffset] = useState(() => new Animated.Value(0));
const [onPageScrollPosition] = useState(() => new Animated.Value(0));
const [onPageSelectedPosition] = useState(() => new Animated.Value(0));

const setPage = useCallback(
(page: number) =>
Expand Down Expand Up @@ -101,8 +99,7 @@ export function useNavigationPanel(
useNativeDriver: true,
}
),
// eslint-disable-next-line react-hooks/exhaustive-deps
[]
[addLog, onPageScrollOffset, onPageScrollPosition]
);

const onPageSelected = useMemo(
Expand All @@ -117,13 +114,12 @@ export function useNavigationPanel(
timestamp: new Date(),
});
setActivePage(position);
onPageSelectedCallback(position);
onPageSelectedCallback?.(position);
},
useNativeDriver: true,
}
),
// eslint-disable-next-line react-hooks/exhaustive-deps
[]
[addLog, onPageSelectedCallback, onPageSelectedPosition]
);

const onPageScrollStateChanged = useCallback(
Expand All @@ -135,8 +131,7 @@ export function useNavigationPanel(
});
setScrollState(e.nativeEvent.pageScrollState);
},
// eslint-disable-next-line react-hooks/exhaustive-deps
[]
[addLog]
);

return {
Expand Down