12 lines
410 B
TypeScript
12 lines
410 B
TypeScript
import { useWindowDimensions } from "react-native";
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/**
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* スマホ（短辺 < 600dp）のみ maxHeight を返す。タブレットでは undefined。
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*/
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export function useSheetMaxHeight(ratio = 0.7): number | undefined {
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const { width, height } = useWindowDimensions();
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const shortSide = Math.min(width, height);
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if (shortSide >= 600) return undefined; // タブレット
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return height * ratio;
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}
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