From 3a33bdaa27b0d68fc2ee692b18d7f527e0f342f5 Mon Sep 17 00:00:00 2001
From: Dylan Vann <dylan@dylanvann.com>
Date: Mon, 29 Jan 2018 01:42:29 -0500
Subject: [PATCH] =?UTF-8?q?=F0=9F=94=98=20Add=20border=20radius=20support?=
 =?UTF-8?q?=20to=20android=20and=20refactor=20and=20update=20examples.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 FastImage.js                                  |  55 ++++--
 example/App.js                                |   4 +-
 .../BorderRadiusAndChildrenExample.js         |  49 +++++
 example/fastImage/Button.js                   |  22 +++
 example/fastImage/FastImageExample.js         | 168 ------------------
 example/fastImage/FastImageExamples.js        |  76 ++++++++
 example/fastImage/FeatureText.js              |  10 ++
 example/fastImage/GifExample.js               |  33 ++++
 example/fastImage/PreloadExample.js           |  68 +++++++
 example/fastImage/PriorityExample.js          |  59 ++++++
 example/fastImage/ProgressExample.js          |  49 +++++
 example/fastImage/Section.js                  |  13 ++
 example/fastImage/SectionFlex.js              |  20 +++
 example/fastImage/withCacheBust.js            |  28 +++
 14 files changed, 474 insertions(+), 180 deletions(-)
 create mode 100644 example/fastImage/BorderRadiusAndChildrenExample.js
 create mode 100644 example/fastImage/Button.js
 delete mode 100644 example/fastImage/FastImageExample.js
 create mode 100644 example/fastImage/FastImageExamples.js
 create mode 100644 example/fastImage/FeatureText.js
 create mode 100644 example/fastImage/GifExample.js
 create mode 100644 example/fastImage/PreloadExample.js
 create mode 100644 example/fastImage/PriorityExample.js
 create mode 100644 example/fastImage/ProgressExample.js
 create mode 100644 example/fastImage/Section.js
 create mode 100644 example/fastImage/SectionFlex.js
 create mode 100644 example/fastImage/withCacheBust.js

diff --git a/FastImage.js b/FastImage.js
index 1e2c5cb30..cc8cf587a 100644
--- a/FastImage.js
+++ b/FastImage.js
@@ -1,10 +1,12 @@
 import React, { Component } from 'react'
 import PropTypes from 'prop-types'
 import {
+  View,
   Image,
   NativeModules,
   requireNativeComponent,
   ViewPropTypes,
+  StyleSheet,
 } from 'react-native'
 
 const resolveAssetSource = require('react-native/Libraries/Image/resolveAssetSource')
@@ -24,6 +26,9 @@ class FastImage extends Component {
       onLoad,
       onError,
       onLoadEnd,
+      style,
+      children,
+      borderRadius,
       ...props
     } = this.props
 
@@ -44,21 +49,51 @@ class FastImage extends Component {
     }
 
     const resolvedSource = resolveAssetSource(source)
+
+    if (!children && !borderRadius) {
+      return (
+        <FastImageView
+          ref={e => (this._root = e)}
+          {...props}
+          style={style}
+          source={resolvedSource}
+          onFastImageLoadStart={onLoadStart}
+          onFastImageProgress={onProgress}
+          onFastImageLoad={onLoad}
+          onFastImageError={onError}
+          onFastImageLoadEnd={onLoadEnd}
+        />
+      )
+    }
+
     return (
-      <FastImageView
-        ref={e => (this._root = e)}
-        {...props}
-        source={resolvedSource}
-        onFastImageLoadStart={onLoadStart}
-        onFastImageProgress={onProgress}
-        onFastImageLoad={onLoad}
-        onFastImageError={onError}
-        onFastImageLoadEnd={onLoadEnd}
-      />
+      <View style={style} borderRadius={borderRadius}>
+        <View style={styles.imageContainer} borderRadius={borderRadius}>
+          <FastImageView
+            ref={e => (this._root = e)}
+            {...props}
+            style={StyleSheet.absoluteFill}
+            source={resolvedSource}
+            onFastImageLoadStart={onLoadStart}
+            onFastImageProgress={onProgress}
+            onFastImageLoad={onLoad}
+            onFastImageError={onError}
+            onFastImageLoadEnd={onLoadEnd}
+          />
+        </View>
+        {children}
+      </View>
     )
   }
 }
 
+const styles = StyleSheet.create({
+  imageContainer: {
+    ...StyleSheet.absoluteFillObject,
+    overflow: 'hidden',
+  },
+})
+
 FastImage.resizeMode = {
   contain: 'contain',
   cover: 'cover',
diff --git a/example/App.js b/example/App.js
index ce3a8d5ed..532e0e735 100644
--- a/example/App.js
+++ b/example/App.js
@@ -1,13 +1,13 @@
 import React from 'react'
 import { TabNavigator, TabBarBottom } from 'react-navigation'
-import FastImageExample from './fastImage/FastImageExample'
+import FastImageExamples from './fastImage/FastImageExamples'
 import FastImageGrid from './fastImage/FastImageGrid'
 import DefaultImageGrid from './fastImage/DefaultImageGrid'
 
 const App = TabNavigator(
   {
     fastImageExample: {
-      screen: FastImageExample,
+      screen: FastImageExamples,
     },
     image: {
       screen: DefaultImageGrid,
diff --git a/example/fastImage/BorderRadiusAndChildrenExample.js b/example/fastImage/BorderRadiusAndChildrenExample.js
new file mode 100644
index 000000000..364287c71
--- /dev/null
+++ b/example/fastImage/BorderRadiusAndChildrenExample.js
@@ -0,0 +1,49 @@
+import React from 'react'
+import { StyleSheet, View } from 'react-native'
+import withCacheBust from './withCacheBust'
+import SectionFlex from './SectionFlex'
+import FastImage from 'react-native-fast-image'
+import Section from './Section'
+import FeatureText from './FeatureText'
+
+const IMAGE_URL = 'https://media.giphy.com/media/GEsoqZDGVoisw/giphy.gif'
+const PLUS_IMAGE_URL =
+  'https://cdn3.iconfinder.com/data/icons/block/32/add-512.png'
+
+const BorderRadiusAndChildrenExample = ({ onPressReload, bust }) => (
+  <View>
+    <Section>
+      <FeatureText text="• Border radius + children." />
+    </Section>
+    <SectionFlex onPress={onPressReload}>
+      <FastImage
+        style={styles.image}
+        borderRadius={100}
+        source={{
+          uri: IMAGE_URL + bust,
+        }}
+      >
+        <FastImage style={styles.plus} source={{ uri: PLUS_IMAGE_URL }} />
+      </FastImage>
+    </SectionFlex>
+  </View>
+)
+
+const styles = StyleSheet.create({
+  image: {
+    height: 100,
+    backgroundColor: '#ddd',
+    margin: 20,
+    width: 100,
+    flex: 0,
+  },
+  plus: {
+    width: 30,
+    height: 30,
+    position: 'absolute',
+    bottom: 0,
+    right: 0,
+  },
+})
+
+export default withCacheBust(BorderRadiusAndChildrenExample)
diff --git a/example/fastImage/Button.js b/example/fastImage/Button.js
new file mode 100644
index 000000000..e63459bcb
--- /dev/null
+++ b/example/fastImage/Button.js
@@ -0,0 +1,22 @@
+import React from 'react'
+import { Text, TouchableOpacity, StyleSheet } from 'react-native'
+
+const Button = ({ text, onPress }) => (
+  <TouchableOpacity onPress={onPress}>
+    <Text style={styles.button}>{text}</Text>
+  </TouchableOpacity>
+)
+
+const styles = StyleSheet.create({
+  button: {
+    backgroundColor: 'black',
+    color: 'white',
+    margin: 5,
+    padding: 5,
+    paddingLeft: 10,
+    paddingRight: 10,
+    borderRadius: 2,
+  },
+})
+
+export default Button
diff --git a/example/fastImage/FastImageExample.js b/example/fastImage/FastImageExample.js
deleted file mode 100644
index 638bb2d91..000000000
--- a/example/fastImage/FastImageExample.js
+++ /dev/null
@@ -1,168 +0,0 @@
-import React, { Component } from 'react'
-import {
-  Button,
-  PixelRatio,
-  ScrollView,
-  StatusBar,
-  StyleSheet,
-  Text,
-  View,
-} from 'react-native'
-import Icon from 'react-native-vector-icons/Ionicons'
-import FastImage from 'react-native-fast-image'
-import uuid from 'uuid/v4'
-
-const getImageUrl = (id, width, height) =>
-  `https://source.unsplash.com/${id}/${width}x${height}`
-
-const IMAGE_SIZE = 150
-const IMAGE_SIZE_PX = PixelRatio.getPixelSizeForLayoutSize(IMAGE_SIZE)
-
-// The server is used to test that sending headers is working correctly.
-const USE_SERVER = false
-const TOKEN = 'someToken'
-
-const getImages = () => {
-  if (USE_SERVER) {
-    const baseUrl = '192.168.2.11'
-    return [
-      `http://${baseUrl}:8080/pictures/ahmed-saffu-235616.jpg`,
-      `http://${baseUrl}:8080/pictures/alex-bertha-236361.jpg`,
-      `http://${baseUrl}:8080/pictures/jaromir-kavan-233699.jpg`,
-    ]
-  }
-  return [
-    getImageUrl('x58soEovG_M', IMAGE_SIZE_PX, IMAGE_SIZE_PX),
-    getImageUrl('yPI7myL5eWY', IMAGE_SIZE_PX, IMAGE_SIZE_PX),
-    'https://cdn-images-1.medium.com/max/1600/1*-CY5bU4OqiJRox7G00sftw.gif',
-  ]
-}
-
-const getTestProgressCallbacks = label => ({
-  onLoadStart: () => console.log(`${label} - onLoadStart`),
-  onProgress: e =>
-    console.log(
-      `${label} - onProgress - ${e.nativeEvent.loaded / e.nativeEvent.total}`,
-    ),
-  onLoad: () => console.log(`${label} - onLoad`),
-  onError: () => console.log(`${label} - onError`),
-  onLoadEnd: () => console.log(`${label} - onLoadEnd`),
-})
-
-const images = getImages()
-
-// Preload images. This can be called anywhere.
-FastImage.preload([
-  {
-    uri: 'https://facebook.github.io/react/img/logo_og.png',
-    headers: { Authorization: 'someAuthToken' },
-  },
-  {
-    uri: 'https://facebook.github.io/react/img/logo_og.png',
-    headers: { Authorization: 'someAuthToken' },
-  },
-])
-
-class FastImageExample extends Component {
-  state = { bust: '?bust' }
-
-  onPressedReload = () => {
-    // Force complete re-render and bust image cache.
-    const key = uuid()
-    const bust = `?bust=${key}`
-    this.setState({ bust })
-  }
-
-  render() {
-    return (
-      <View style={styles.container} key={this.state.bust}>
-        <StatusBar
-          translucent
-          barStyle="dark-content"
-          backgroundColor="transparent"
-        />
-        <ScrollView
-          style={styles.scrollContainer}
-          contentContainerStyle={styles.scrollContentContainer}
-        >
-          <View style={styles.textContainer}>
-            <Text style={styles.bold}>FastImage</Text>
-            <Text>• priority (low, normal, high)</Text>
-            <Text>• authentication (token)</Text>
-            <Button title="Reload" onPress={this.onPressedReload} />
-          </View>
-          <FastImage
-            style={styles.image}
-            source={{
-              uri: images[0] + this.state.bust,
-              headers: {
-                token: TOKEN,
-              },
-              priority: FastImage.priority.low,
-            }}
-            {...getTestProgressCallbacks('1')}
-          />
-          <FastImage
-            style={styles.image}
-            source={{
-              uri: images[1] + this.state.bust,
-              headers: {
-                token: TOKEN,
-              },
-              priority: FastImage.priority.normal,
-            }}
-            {...getTestProgressCallbacks('2')}
-          />
-          <FastImage
-            style={styles.image}
-            source={{
-              uri: images[2] + this.state.bust,
-              headers: {
-                token: TOKEN,
-              },
-              priority: FastImage.priority.high,
-            }}
-            {...getTestProgressCallbacks('3')}
-          />
-        </ScrollView>
-      </View>
-    )
-  }
-}
-
-FastImageExample.navigationOptions = {
-  tabBarLabel: 'FastImage Example',
-  tabBarIcon: ({ focused, tintColor }) => {
-    if (focused)
-      return <Icon name="ios-information-circle" size={26} color={tintColor} />
-    return (
-      <Icon name="ios-information-circle-outline" size={26} color={tintColor} />
-    )
-  },
-}
-
-const styles = StyleSheet.create({
-  bold: {
-    fontWeight: '900',
-  },
-  textContainer: {
-    marginTop: 40,
-    marginBottom: 20,
-  },
-  image: {
-    height: IMAGE_SIZE,
-    width: IMAGE_SIZE,
-    backgroundColor: '#eee',
-    margin: 2,
-  },
-  container: {
-    flex: 1,
-  },
-  scrollContainer: {},
-  scrollContentContainer: {
-    alignItems: 'center',
-    flex: 0,
-  },
-})
-
-export default FastImageExample
diff --git a/example/fastImage/FastImageExamples.js b/example/fastImage/FastImageExamples.js
new file mode 100644
index 000000000..d35642909
--- /dev/null
+++ b/example/fastImage/FastImageExamples.js
@@ -0,0 +1,76 @@
+import React from 'react'
+import { ScrollView, StatusBar, StyleSheet, Text, View } from 'react-native'
+import Icon from 'react-native-vector-icons/Ionicons'
+import Section from './Section'
+import PriorityExample from './PriorityExample'
+import GifExample from './GifExample'
+import BorderRadiusAndChildrenExample from './BorderRadiusAndChildrenExample'
+import FeatureText from './FeatureText'
+import ProgressExample from './ProgressExample'
+import PreloadExample from './PreloadExample'
+
+const FastImageExample = () => (
+  <View style={styles.container}>
+    <StatusBar
+      translucent
+      barStyle="dark-content"
+      backgroundColor="transparent"
+    />
+    <ScrollView
+      style={styles.scrollContainer}
+      contentContainerStyle={styles.scrollContentContainer}
+    >
+      <View style={styles.contentContainer}>
+        <Section>
+          <Text style={styles.titleText}>🚩 FastImage</Text>
+          <FeatureText text="Tap images to reload examples." />
+        </Section>
+        <PriorityExample />
+        <GifExample />
+        <BorderRadiusAndChildrenExample />
+        <ProgressExample />
+        <PreloadExample />
+      </View>
+    </ScrollView>
+  </View>
+)
+
+FastImageExample.navigationOptions = {
+  tabBarLabel: 'FastImage Example',
+  tabBarIcon: ({ focused, tintColor }) => {
+    const name = focused
+      ? 'ios-information-circle'
+      : 'ios-information-circle-outline'
+    return <Icon name={name} size={26} color={tintColor} />
+  },
+}
+
+const styles = StyleSheet.create({
+  titleText: {
+    fontWeight: '900',
+    marginBottom: 20,
+    color: '#222',
+  },
+  contentContainer: {
+    marginTop: 40,
+    marginBottom: 20,
+  },
+  image: {
+    flex: 1,
+    height: 100,
+    backgroundColor: '#ddd',
+    margin: 10,
+  },
+  container: {
+    flex: 1,
+    alignItems: 'stretch',
+    backgroundColor: '#fff',
+  },
+  scrollContainer: {},
+  scrollContentContainer: {
+    alignItems: 'stretch',
+    flex: 0,
+  },
+})
+
+export default FastImageExample
diff --git a/example/fastImage/FeatureText.js b/example/fastImage/FeatureText.js
new file mode 100644
index 000000000..12b3d9a1b
--- /dev/null
+++ b/example/fastImage/FeatureText.js
@@ -0,0 +1,10 @@
+import React from 'react'
+import { Text, StyleSheet } from 'react-native'
+
+export default ({ text }) => <Text style={styles.style}>{text}</Text>
+
+const styles = StyleSheet.create({
+  style: {
+    color: '#222',
+  },
+})
diff --git a/example/fastImage/GifExample.js b/example/fastImage/GifExample.js
new file mode 100644
index 000000000..91c44009c
--- /dev/null
+++ b/example/fastImage/GifExample.js
@@ -0,0 +1,33 @@
+import React from 'react'
+import { View, StyleSheet } from 'react-native'
+import withCacheBust from './withCacheBust'
+import SectionFlex from './SectionFlex'
+import FastImage from 'react-native-fast-image'
+import Section from './Section'
+import FeatureText from './FeatureText'
+
+const GIF_URL =
+  'https://cdn-images-1.medium.com/max/1600/1*-CY5bU4OqiJRox7G00sftw.gif'
+
+const GifExample = ({ onPressReload, bust }) => (
+  <View>
+    <Section>
+      <FeatureText text="• GIF support." />
+    </Section>
+    <SectionFlex onPress={onPressReload}>
+      <FastImage style={styles.image} source={{ uri: GIF_URL + bust }} />
+    </SectionFlex>
+  </View>
+)
+
+const styles = StyleSheet.create({
+  image: {
+    backgroundColor: '#ddd',
+    margin: 10,
+    height: 100,
+    width: 100,
+    flex: 0,
+  },
+})
+
+export default withCacheBust(GifExample)
diff --git a/example/fastImage/PreloadExample.js b/example/fastImage/PreloadExample.js
new file mode 100644
index 000000000..a460a425e
--- /dev/null
+++ b/example/fastImage/PreloadExample.js
@@ -0,0 +1,68 @@
+import React, { Component } from 'react'
+import { View, StyleSheet, TouchableOpacity, Text } from 'react-native'
+import SectionFlex from './SectionFlex'
+import FastImage from 'react-native-fast-image'
+import Section from './Section'
+import FeatureText from './FeatureText'
+import uuid from 'uuid/v4'
+import Button from './Button'
+
+const IMAGE_URL =
+  'https://cdn-images-1.medium.com/max/1600/1*-CY5bU4OqiJRox7G00sftw.gif'
+
+class PreloadExample extends Component {
+  state = {
+    show: false,
+    url: IMAGE_URL,
+  }
+
+  bustAndPreload = () => {
+    const key = uuid()
+    const bust = `?bust=${key}`
+    // Preload images. This can be called anywhere.
+    const url = IMAGE_URL + bust
+    FastImage.preload([{ uri: url }])
+    this.setState({ url, show: false })
+  }
+
+  showImage = () => {
+    this.setState({ show: true })
+  }
+
+  render() {
+    return (
+      <View>
+        <Section>
+          <FeatureText text="• Preloading." />
+        </Section>
+        <SectionFlex style={styles.section} onPress={this.props.onPressReload}>
+          {this.state.show ? (
+            <FastImage style={styles.image} source={{ uri: this.state.url }} />
+          ) : (
+            <View style={styles.image} />
+          )}
+          <Button
+            text="Bust cache and preload."
+            onPress={this.bustAndPreload}
+          />
+          <Button text="Render image." onPress={this.showImage} />
+        </SectionFlex>
+      </View>
+    )
+  }
+}
+
+const styles = StyleSheet.create({
+  section: {
+    flexDirection: 'column',
+    alignItems: 'center',
+  },
+  image: {
+    backgroundColor: '#ddd',
+    margin: 10,
+    height: 100,
+    width: 100,
+  },
+})
+
+export default PreloadExample
diff --git a/example/fastImage/PriorityExample.js b/example/fastImage/PriorityExample.js
new file mode 100644
index 000000000..b217d4d90
--- /dev/null
+++ b/example/fastImage/PriorityExample.js
@@ -0,0 +1,59 @@
+import React from 'react'
+import { StyleSheet, View, PixelRatio } from 'react-native'
+import withCacheBust from './withCacheBust'
+import FastImage from 'react-native-fast-image'
+import Section from './Section'
+import SectionFlex from './SectionFlex'
+import FeatureText from './FeatureText'
+
+const getImageUrl = (id, width, height) =>
+  `https://source.unsplash.com/${id}/${width}x${height}`
+const IMAGE_SIZE = 1024
+const IMAGE_SIZE_PX = PixelRatio.getPixelSizeForLayoutSize(IMAGE_SIZE)
+const IMAGE_URLS = [
+  getImageUrl('x58soEovG_M', IMAGE_SIZE_PX, IMAGE_SIZE_PX),
+  getImageUrl('yPI7myL5eWY', IMAGE_SIZE_PX, IMAGE_SIZE_PX),
+  getImageUrl('S7VCcp6KCKE', IMAGE_SIZE, IMAGE_SIZE),
+]
+
+const PriorityExample = ({ onPressReload, bust }) => (
+  <View>
+    <Section>
+      <FeatureText text="• Prioritize images (low, normal, high)." />
+    </Section>
+    <SectionFlex onPress={onPressReload}>
+      <FastImage
+        style={styles.image}
+        source={{
+          uri: IMAGE_URLS[0] + bust,
+          priority: FastImage.priority.low,
+        }}
+      />
+      <FastImage
+        style={styles.image}
+        source={{
+          uri: IMAGE_URLS[1] + bust,
+          priority: FastImage.priority.normal,
+        }}
+      />
+      <FastImage
+        style={styles.image}
+        source={{
+          uri: IMAGE_URLS[2] + bust,
+          priority: FastImage.priority.high,
+        }}
+      />
+    </SectionFlex>
+  </View>
+)
+
+const styles = StyleSheet.create({
+  image: {
+    flex: 1,
+    height: 100,
+    backgroundColor: '#ddd',
+    margin: 10,
+  },
+})
+
+export default withCacheBust(PriorityExample)
diff --git a/example/fastImage/ProgressExample.js b/example/fastImage/ProgressExample.js
new file mode 100644
index 000000000..57ae649b1
--- /dev/null
+++ b/example/fastImage/ProgressExample.js
@@ -0,0 +1,49 @@
+import React from 'react'
+import { StyleSheet, View } from 'react-native'
+import withCacheBust from './withCacheBust'
+import SectionFlex from './SectionFlex'
+import FastImage from 'react-native-fast-image'
+import Section from './Section'
+import FeatureText from './FeatureText'
+
+const IMAGE_URL = 'https://media.giphy.com/media/GEsoqZDGVoisw/giphy.gif'
+
+const getTestProgressCallbacks = label => ({
+  onLoadStart: () => console.log(`${label} - onLoadStart`),
+  onProgress: e =>
+    console.log(
+      `${label} - onProgress - ${e.nativeEvent.loaded / e.nativeEvent.total}`,
+    ),
+  onLoad: () => console.log(`${label} - onLoad`),
+  onError: () => console.log(`${label} - onError`),
+  onLoadEnd: () => console.log(`${label} - onLoadEnd`),
+})
+
+const ProgressExample = ({ onPressReload, bust }) => (
+  <View>
+    <Section>
+      <FeatureText text="• Progress callbacks." />
+    </Section>
+    <SectionFlex onPress={onPressReload}>
+      <FastImage
+        style={styles.image}
+        source={{
+          uri: IMAGE_URL + bust,
+        }}
+        {...getTestProgressCallbacks('ProgressExample')}
+      />
+    </SectionFlex>
+  </View>
+)
+
+const styles = StyleSheet.create({
+  image: {
+    height: 100,
+    backgroundColor: '#ddd',
+    margin: 20,
+    width: 100,
+    flex: 0,
+  },
+})
+
+export default withCacheBust(ProgressExample)
diff --git a/example/fastImage/Section.js b/example/fastImage/Section.js
new file mode 100644
index 000000000..f02ac0ffc
--- /dev/null
+++ b/example/fastImage/Section.js
@@ -0,0 +1,13 @@
+import React from 'react'
+import { View, StyleSheet } from 'react-native'
+
+export default ({ children }) => <View style={styles.section}>{children}</View>
+
+const styles = StyleSheet.create({
+  section: {
+    marginTop: 10,
+    marginBottom: 10,
+    marginLeft: 40,
+    marginRight: 40,
+  },
+})
diff --git a/example/fastImage/SectionFlex.js b/example/fastImage/SectionFlex.js
new file mode 100644
index 000000000..cba5b7da6
--- /dev/null
+++ b/example/fastImage/SectionFlex.js
@@ -0,0 +1,20 @@
+import React from 'react'
+import { TouchableOpacity, StyleSheet } from 'react-native'
+
+export default ({ children, onPress, style }) => (
+  <TouchableOpacity style={[styles.sectionFlex, style]} onPress={onPress}>
+    {children}
+  </TouchableOpacity>
+)
+
+const styles = StyleSheet.create({
+  sectionFlex: {
+    backgroundColor: '#eee',
+    flexDirection: 'row',
+    justifyContent: 'center',
+    marginTop: 10,
+    marginBottom: 10,
+    marginLeft: -10,
+    marginRight: -10,
+  },
+})
diff --git a/example/fastImage/withCacheBust.js b/example/fastImage/withCacheBust.js
new file mode 100644
index 000000000..124d7f7d9
--- /dev/null
+++ b/example/fastImage/withCacheBust.js
@@ -0,0 +1,28 @@
+import React, { Component } from 'react'
+import uuid from 'uuid/v4'
+
+export default BaseComponent => {
+  class WithCacheBust extends Component {
+    state = { bust: '?bust' }
+
+    onPressReload = () => {
+      // Force complete re-render and bust image cache.
+      const key = uuid()
+      const bust = `?bust=${key}`
+      this.setState({ bust })
+    }
+
+    render() {
+      return (
+        <BaseComponent
+          bust={this.state.bust}
+          onPressReload={this.onPressReload}
+        />
+      )
+    }
+  }
+
+  WithCacheBust.displayName = `withCacheBust${BaseComponent.displayName}`
+
+  return WithCacheBust
+}