From 0f1218883016a60710e0bdaa739cd71ee80560aa Mon Sep 17 00:00:00 2001
From: Rapsssito <contact@rodrigomartin.dev>
Date: Thu, 20 Feb 2020 18:28:09 +0100
Subject: [PATCH] chore: More functional example

---
 examples/backgroundExample/App.js       | 56 ++++++++++++-------------
 examples/backgroundExample/package.json |  1 +
 examples/backgroundExample/yarn.lock    |  5 +++
 3 files changed, 33 insertions(+), 29 deletions(-)

diff --git a/examples/backgroundExample/App.js b/examples/backgroundExample/App.js
index 26c3b95..8f31e73 100644
--- a/examples/backgroundExample/App.js
+++ b/examples/backgroundExample/App.js
@@ -17,21 +17,33 @@ import {
   TouchableOpacity,
   Platform,
 } from 'react-native';
+import {Header, Colors} from 'react-native/Libraries/NewAppScreen';
 
+import EventEmitter from 'events';
 import BackgroundJob from 'react-native-background-actions';
 
-import {Header, Colors} from 'react-native/Libraries/NewAppScreen';
-
 const sleep = time => new Promise(resolve => setTimeout(() => resolve(), time));
 
+const eventEmitter = new EventEmitter();
+
 const taskRandom = async taskData => {
-  if (Platform.OS === 'ios') 
-    console.warn('This task will not keep your app alive in the background by itself, use other library like react-native-track-player that use audio, geolocalization, etc. to keep your app alive in the background while you excute the JS from this library.');
-  const args = taskData.arguments;
-  for (let i = 0; i < 1000; i++) {
-    console.log('Runned -> ', i);
-    await sleep(args.delay);
+  if (Platform.OS === 'ios') {
+    console.warn(
+      'This task will not keep your app alive in the background by itself, use other library like react-native-track-player that use audio,',
+      'geolocalization, etc. to keep your app alive in the background while you excute the JS from this library.',
+    );
   }
+  await new Promise(async resolve => {
+    let keepRunning = true;
+    // We add a listener to stop running
+    eventEmitter.addListener('close', () => (keepRunning = false));
+    // For loop with a delay
+    const {delay} = taskData.arguments;
+    for (let i = 0; keepRunning; i++) {
+      console.log('Runned -> ', i);
+      await sleep(delay);
+    }
+  });
 };
 
 const options = {
@@ -51,7 +63,10 @@ const options = {
 class App extends React.Component {
   playing = false;
 
-  initBackground = async () => {
+  /**
+   * Toggles the background task
+   */
+  toggleBackground = async () => {
     this.playing = !this.playing;
     if (this.playing) {
       try {
@@ -62,7 +77,8 @@ class App extends React.Component {
         console.log('Error', e);
       }
     } else {
-      await BackgroundJob.stop();
+      console.log('Stop background service');
+      eventEmitter.emit('close');
     }
   };
   render() {
@@ -82,7 +98,7 @@ class App extends React.Component {
             <View style={styles.body}>
               <TouchableOpacity
                 style={{height: 100, width: 100, backgroundColor: 'red'}}
-                onPress={this.initBackground}></TouchableOpacity>
+                onPress={this.toggleBackground}></TouchableOpacity>
             </View>
           </ScrollView>
         </SafeAreaView>
@@ -102,24 +118,6 @@ const styles = StyleSheet.create({
   body: {
     backgroundColor: Colors.white,
   },
-  sectionContainer: {
-    marginTop: 32,
-    paddingHorizontal: 24,
-  },
-  sectionTitle: {
-    fontSize: 24,
-    fontWeight: '600',
-    color: Colors.black,
-  },
-  sectionDescription: {
-    marginTop: 8,
-    fontSize: 18,
-    fontWeight: '400',
-    color: Colors.dark,
-  },
-  highlight: {
-    fontWeight: '700',
-  },
   footer: {
     color: Colors.dark,
     fontSize: 12,
diff --git a/examples/backgroundExample/package.json b/examples/backgroundExample/package.json
index 613b69c..8a8a6a2 100644
--- a/examples/backgroundExample/package.json
+++ b/examples/backgroundExample/package.json
@@ -11,6 +11,7 @@
     "pods": "cd ios && pod install"
   },
   "dependencies": {
+    "events": "^3.1.0",
     "react": "16.9.0",
     "react-native": "0.61.5",
     "react-native-background-actions": "^1.1.0"
diff --git a/examples/backgroundExample/yarn.lock b/examples/backgroundExample/yarn.lock
index edc73c0..8e19023 100644
--- a/examples/backgroundExample/yarn.lock
+++ b/examples/backgroundExample/yarn.lock
@@ -2373,6 +2373,11 @@ eventemitter3@^3.0.0:
   resolved "https://registry.npmjs.org/eventemitter3/-/eventemitter3-3.1.2.tgz#2d3d48f9c346698fce83a85d7d664e98535df6e7"
   integrity sha512-tvtQIeLVHjDkJYnzf2dgVMxfuSGJeM/7UCG17TT4EumTfNtF+0nebF/4zWOIkCreAbtNqhGEboB6BWrwqNaw4Q==
 
+events@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.npmjs.org/events/-/events-3.1.0.tgz#84279af1b34cb75aa88bf5ff291f6d0bd9b31a59"
+  integrity sha512-Rv+u8MLHNOdMjTAFeT3nCjHn2aGlx435FP/sDHNaRhDEMwyI/aB22Kj2qIN8R0cw3z28psEQLYwxVKLsKrMgWg==
+
 exec-sh@^0.3.2:
   version "0.3.4"
   resolved "https://registry.npmjs.org/exec-sh/-/exec-sh-0.3.4.tgz#3a018ceb526cc6f6df2bb504b2bfe8e3a4934ec5"