Require expo-linear-gradient just in case the user wants Gradient component catalinmiron#5

Author: catalinmiron

index.js

@@ -1,11 +1,15 @@
 import React from "react";
 import { View, StyleSheet } from "react-native";
 import generateGradient from "./generator";
-import { LinearGradient } from "expo-linear-gradient";
 
 export { generateGradient };
 
 export default ({ gradient, children, style }) => {
+  // Avoid breaking this when people are not using expo :)
+  // find a better solution to expose either expo-linear-gradient or
+  // react-native-linear-gradient.
+  const { LinearGradient } = require("expo-linear-gradient");
+
   const generated = generateGradient(gradient, {
     width: style.width,
     height: style.height
@@ -20,6 +24,7 @@ export default ({ gradient, children, style }) => {
       </View>
     );
   }
+
   return (
     <LinearGradient style={style} {...generated[0]}>
       {children || null}