vds_quiz/vds-app/App/components/Alert.js

import React from "react"
import { View, StyleSheet, Dimensions, Image } from "react-native"
import { colors } from "../components/Variables"

const screen = Dimensions.get("window")

const styles = StyleSheet.create({
  container: {
    position: "absolute",
    top: 0,
    bottom: 0,
    left: 0,
    right: 0,
    flex: 1,
    alignItems: "center",
    justifyContent: "center"
  },
  circle: {
    backgroundColor: colors.red,
    width: screen.width / 2,
    height: screen.width / 2,
    borderRadius: screen.width / 2,
    alignItems: "center",
    justifyContent: "center"
  },
  circleCorrect: {
    backgroundColor: colors.green
  },
  icon: {
    width: screen.width / 3
  }
})

export const Alert = ({ correct, visible }) => {
  if (!visible) return null

  const icon = correct
    ? require("../assets/check.png")
    : require("../assets/close.png")

  const circleStyles = [styles.circle]

  if (correct) {
    circleStyles.push(styles.circleCorrect)
  }

  return (
    <View style={styles.container}>
      <View style={circleStyles}>
        <Image source={icon} style={styles.icon} resizeMode="contain" />
      </View>
    </View>
  )
}