create-expo-cljs-app/template/node_modules/react-native-paper/lib/module/styles/shadow.js

Create a react native application with Expo and Shadow-CLJS!

import * as Colors from './colors';
import { Animated } from 'react-native';
const SHADOW_COLOR = Colors.black;
const SHADOW_OPACITY = 0.24;
export default function shadow(elevation = 0) {
  if (elevation instanceof Animated.Value) {
    const inputRange = [0, 1, 2, 3, 8, 24];
    return {
      shadowColor: SHADOW_COLOR,
      shadowOffset: {
        width: new Animated.Value(0),
        height: elevation.interpolate({
          inputRange,
          outputRange: [0, 0.5, 0.75, 2, 7, 23]
        })
      },
      shadowOpacity: new Animated.Value(SHADOW_OPACITY),
      shadowRadius: elevation.interpolate({
        inputRange,
        outputRange: [0, 0.75, 1.5, 3, 8, 24]
      })
    };
  } else {
    if (elevation === 0) {
      return {};
    }

    let height, radius;

    switch (elevation) {
      case 1:
        height = 0.5;
        radius = 0.75;
        break;

      case 2:
        height = 0.75;
        radius = 1.5;
        break;

      default:
        height = elevation - 1;
        radius = elevation;
    }

    return {
      shadowColor: SHADOW_COLOR,
      shadowOffset: {
        width: 0,
        height
      },
      shadowOpacity: SHADOW_OPACITY,
      shadowRadius: radius
    };
  }
}
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