react-native-paper/lib/module/utils/useLayout.js

Material design for React Native

import * as React from 'react';
export default function useLayout() {
  const [layout, setLayout] = React.useState({
    height: 0,
    width: 0,
    measured: false
  });
  const onLayout = React.useCallback(e => {
    const {
      height,
      width
    } = e.nativeEvent.layout;
    if (height === layout.height && width === layout.width) {
      return;
    }
    setLayout({
      height,
      width,
      measured: true
    });
  }, [layout.height, layout.width]);
  return [layout, onLayout];
}
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